{"artifacts":{"doi:10.1016/j.cemconres.2023.107309/p8/tab-7":{"artifact":"table","caption":"H 298 and S 298 of the compounds in the C-S system as calculated by the model presented here and compared to values from Haas et al. [3].","label":"7","page":8},"doi:10.1016/j.cemconres.2023.107309/p9/tab-9":{"artifact":"table","caption":"Summary of transitions and invariant reactions in the C-S system from the calculated phase diagram compared to experimental data in parentheses. The composition values correspond to the liquid phase.","label":"9","page":9},"sha256:c915e9e151d53dff/p13/tab-a.2":{"artifact":"table","caption":"(continued )","label":"A.2","page":13},"sha256:c915e9e151d53dff/p2/tab-2":{"artifact":"table","caption":"Properties of the polymorphic transitions for all solids in the CaO-SiO 2 system found in the literature.","label":"2","page":2},"sha256:c915e9e151d53dff/p7/tab-3":{"artifact":"table","caption":"Rankinite (Ca 3 Si 2 O 7 ) heat content measurement. 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Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23736065","title":"ORCHID data: umbrella record of the ORCHID datasets","url":"https://doi.org/10.5281/zenodo.23736065"},"release_tag":"v2026.10","status":"Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.","text":"R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735569","title":"ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature","url":"https://doi.org/10.5281/zenodo.23735569","version":"2026.10"},"contexts":{},"elements":["CA","O","SI"],"licence":"CC BY 4.0 (ORCHID data; quotes are short excerpts kept for verification, the publishers' copyright, not relicensed)","models":{},"note":"records[].locator.ref -> artifacts; records[].model -> models (full records: orchid-literature.jsonl.gz)","papers":{"doi:10.1002/zaac.19322080102":{"authors":["Hubert Wagner"],"citation":"Hubert Wagner, Zur Thermochemie der Metasilikate des Calciums und Magnesiums und des Diopsids, Z. Anorg. Allg. Chem. 208, 1-22 (1932).","container":"Z. Anorg. Allg. 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Richet, Thermodynamics of diopside, anorthite, pseudowollastonite, CaMgGeO 4 olivine, and åkermanite up to near the melting point, Physics and Chemistry of Minerals 27, 242-250 (2000).","container":"Physics and Chemistry of Minerals","doi":"10.1007/s002690050253","doi_url":"https://doi.org/10.1007/s002690050253","id":"doi:10.1007/s002690050253","kind":"cited_work","metadata_source":"crossref","roles":["cited_source"],"source_kinds":["cited_work"],"title":"Thermodynamics of diopside, anorthite, pseudowollastonite, CaMgGeO 4 olivine, and åkermanite up to near the melting point","year":2000},"doi:10.1016/j.cemconres.2023.107309":{"authors":["Wahab Abdul","Chancel Mawalala","Alexander Pisch","Marcus Nigel Bannerman"],"citation":"Wahab Abdul, Chancel Mawalala, Alexander Pisch, Marcus Nigel Bannerman, CaO-SiO2 assessment using 3rd generation CALPHAD models, Cement and Concrete Research 173, 107309 (2023).","container":"Cement and Concrete Research","doi":"10.1016/j.cemconres.2023.107309","doi_url":"https://doi.org/10.1016/j.cemconres.2023.107309","id":"doi:10.1016/j.cemconres.2023.107309","kind":"corpus_paper","metadata_source":"crossref","pdf_sha256_prefix":"c915e9e151d53dff","roles":["reporting_paper"],"source_kinds":["journal_article"],"title":"CaO-SiO2 assessment using 3rd generation CALPHAD models","year":2023},"doi:10.1021/j100826a007":{"authors":["Robert Benz","Carl Wagner"],"citation":"Robert Benz, Carl Wagner, THERMODYNAMICS OF THE SOLID SYSTEM CaO—SiO<sub>2</sub> FROM ELECTROMOTIVE FORCE DATA, J. Phys. Chem. 65, 1308-1311 (1961).","container":"J. Phys. Chem.","doi":"10.1021/j100826a007","doi_url":"https://doi.org/10.1021/j100826a007","id":"doi:10.1021/j100826a007","kind":"cited_work","metadata_source":"crossref","roles":["cited_source"],"source_kinds":["cited_work"],"title":"THERMODYNAMICS OF THE SOLID SYSTEM CaO—SiO<sub>2</sub> FROM ELECTROMOTIVE FORCE DATA","year":1961},"doi:10.1021/ja01577a028":{"authors":["E. G. King"],"citation":"E. G. King, Low Temperature Heat Capacities and Entropies at 298.15°K. of Some Crystalline Silicates Containing Calcium, J. Am. Chem. Soc. 79, 5437-5438 (1957).","container":"J. Am. Chem. 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Hemingway, Thermodynamic tabulations for selected phases in the system CaO-Al2O3- SiO2-H2 at 101.325 kPa (1 atm) between 273.15 and 1800 K, Journal of Physical and Chemical Reference Data 10, 575-670 (1981).","container":"Journal of Physical and Chemical Reference Data","doi":"10.1063/1.555645","doi_url":"https://doi.org/10.1063/1.555645","id":"doi:10.1063/1.555645","kind":"cited_work","metadata_source":"crossref","roles":["cited_source"],"source_kinds":["cited_work"],"title":"Thermodynamic tabulations for selected phases in the system CaO-Al2O3- SiO2-H2 at 101.325 kPa (1 atm) between 273.15 and 1800 K","year":1981},"doi:10.2475/ajs.s4-39.229.1":{"authors":["G. A. Rankin"],"citation":"G. A. Rankin, The ternary system CaO-Al 2 O 3 -SiO 2 , with optical study by F. E. 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Rows: Monoclinic-Ca3SiO5 -2932 / 166.4; Triclinic-Ca3SiO5 -2933 (Haas -2933) / 166.5 (168.6). Compounds are Ca-Si-O oxides.","verdict":"confirmed"}},{"after":null,"before":"DIAMOND_A4","evidence":{"label":"α′-Ca2SiO4","release":"phase-label-check 2026-10-24 (audit round 2, A2 class 1)"},"field":"phases.model_phase","gate":"PL","rule":"greek_or_compound_label_mapped_to_element_structure"}],"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"magnitude_suspect":true,"review_state":"extracted","specification_gaps":["state:composition"],"state_fully_specified":false,"system_mismatch":true,"system_reassigned":true},"fold_lpo":2,"fold_lso":3,"id":"ORC-DOD36BIQRQ.dd12cd","locator":{"ref":"doi:10.1016/j.cemconres.2023.107309/p8/tab-7","row":13},"merged_ids":["ORC-DOD36BIQRQ.16452c"],"model_unlinked_reason":"linked TDB not the reporting paper's own model (link basis: None)","observation_type":"equilibrium_property","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.cemconres.2023.107309","own_work_of_paper":true},"paper":"doi:10.1016/j.cemconres.2023.107309","paper_id":"doi:10.1016/j.cemconres.2023.107309","phases":[{"label":"α′-Ca2SiO4","label_variants":["α'-Ca2SiO4"],"model_phase_rejected":{"model_phase":"DIAMOND_A4","reason":"greek_or_compound_label_mapped_to_element_structure"}}],"pid":"doi:10.1016/j.cemconres.2023.107309/p8/tab-7/r13#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"HM_FORM","property_group":"formation","property_printed":"H298","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"confirmed_pro","readers":["claude-opus-5.5","gemini-3.1-pro-preview","text_layer"],"record_kind":"general_table","reference_state":{},"reference_state_stored":{"C":{"fixed_state_variables":{"T":298.15},"phase":"HEX_A9"},"S":{"fixed_state_variables":{"T":298.15},"phase":"FC_ORTHORH"}},"source_system":"CA-O-SI","system":"CA-O-SI","system_stored":"C-S","temperature_K":298.15,"temperature_basis":"quantity_label","temperature_printed":"298","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":115.2},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":27.3,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.54664],"class":"model_calculated","entry":"model/HM_FORM","floor":3.9,"floor_unit":"kJ/mol-atom","n_pairs":2045,"scaled_for_unstated_basis":7,"value":27.3},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"kJ/mol (basis unstated)","value_type":"HM_FORM"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"kJ/mol (basis unstated)","unit_basis":"column_header","unit_printed":"kJ mol-1","unit_stored":"J/mol (basis unstated)","value":-2304.0,"value_printed":-2304.0,"value_stored":-2304000.0},{"chemical_system":"CA-O-SI","cited_sources":[{"doi":"10.1063/1.555645","first_author":"Haas","kind":"unknown","label":"3","paper":"doi:10.1063/1.555645","reference":"J.L. 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Compounds are Ca-Si-O oxides.","verdict":"confirmed"}},{"after":null,"before":"DIAMOND_A4","evidence":{"label":"α′-Ca2SiO4","release":"phase-label-check 2026-10-24 (audit round 2, A2 class 1)"},"field":"phases.model_phase","gate":"PL","rule":"greek_or_compound_label_mapped_to_element_structure"}],"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","specification_gaps":["state:composition"],"state_fully_specified":false,"system_mismatch":true,"system_reassigned":true},"fold_lpo":2,"fold_lso":3,"id":"ORC-PBAHCHHFYE.3df2c2","locator":{"ref":"doi:10.1016/j.cemconres.2023.107309/p8/tab-7","row":14},"merged_ids":["ORC-PBAHCHHFYE.7a1a47"],"model_unlinked_reason":"linked TDB not the reporting paper's own model (link basis: None)","observation_type":"equilibrium_property","origin":{"basis":"caption_names_calculation_only","class":"model_value","own_work_of_paper":false},"paper":"doi:10.1016/j.cemconres.2023.107309","paper_id":"doi:10.1016/j.cemconres.2023.107309","phases":[{"label":"α′-Ca2SiO4","label_variants":["α'-Ca2SiO4"],"model_phase_rejected":{"model_phase":"DIAMOND_A4","reason":"greek_or_compound_label_mapped_to_element_structure"}}],"pid":"doi:10.1016/j.cemconres.2023.107309/p8/tab-7/r14#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"unstated_assumed","property":"SM","property_group":"heat capacity / entropy / enthalpy","property_printed":"S298","reader_agreement":"multi_reader","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"confirmed_pro","readers":["claude-opus-5.5","gemini-3.1-pro-preview","text_layer"],"record_kind":"general_table","source_system":"CA-O-SI","system":"CA-O-SI","system_stored":"C-S","temperature_K":298.15,"temperature_basis":"quantity_label","temperature_printed":"298","tool_release":"tools-release-v2.1.18","uncertainty":{"basis":"stated_default","note":"5% default","value":5.8},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":1.0,"sigma_method":{"basis":"prior","ci95":null,"class":"model_calculated","entry":"model/S_ABS","floor":1.0,"floor_unit":"J/K/mol","n_pairs":260,"value":1.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"J/mol (basis unstated)/K","value_type":"S_ABS"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"J/mol (basis unstated)/K","unit_basis":"assumed_per_mole_of_atoms","unit_printed":"J mol-1 K-1","value":116.0,"value_printed":116.0},{"chemical_system":"CA-O-SI","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":"CA-O-SI","before":"C-S","evidence":{"caption_systems":["C-S"],"cement_notation":true,"foreign_elements":[]},"field":"system","gate":"G4","rule":"system_from_phase_formulas_and_caption","visual_check":{"checked":"2026-10-23","image_sha256":"045f66638b65bfeda9071d4cbbbc1abf3e0d736088bed26bd16be609fb68488a","page":8,"pdf_sha256_prefix":"c915e9e151d53dff","seen":"Table 7 'H298 and S298 of the compounds in the C-S system' (cement notation C=CaO, S=SiO2). Rows: Monoclinic-Ca3SiO5 -2932 / 166.4; Triclinic-Ca3SiO5 -2933 (Haas -2933) / 166.5 (168.6). 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Rows: γ-Ca2SiO4 -> α'-Ca2SiO4 1120 (1120)[81]; β-Ca2SiO4 -> α'-Ca2SiO4 970 (970)[81]. 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Rows: γ-Ca2SiO4 -> α'-Ca2SiO4 1120 (1120)[81]; β-Ca2SiO4 -> α'-Ca2SiO4 970 (970)[81]. Phases are Ca-Si-O oxides.","verdict":"confirmed"}}],"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true,"system_reassigned":true},"fold_lpo":2,"fold_lso":3,"id":"ORC-E3ORTPQG73","locator":{"ref":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9","row":7},"model_unlinked_reason":"linked TDB not the reporting paper's own model (link basis: multicomponent TDB with 2 ternary parameters)","observation_type":"invariant_reaction","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.cemconres.2023.107309","own_work_of_paper":true},"paper":"doi:10.1016/j.cemconres.2023.107309","paper_id":"doi:10.1016/j.cemconres.2023.107309","phases":[{"label":"Wollastonite"},{"label":"cyclo-CaSiO3"}],"pid":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9/r07#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"Wollastonite -> cyclo-CaSiO3","type":"other"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-O-SI","system":"CA-O-SI","system_stored":"C-S","temperature_K":1397.0,"temperature_printed":"1397","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"other","transition_kind_printed":"transition","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1397.0},{"chemical_system":"CA-O-SI","cited_sources":[{"first_author":"Voronko","kind":"unknown","label":"38","reference":"Y.K. 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Rows: γ-Ca2SiO4 -> α'-Ca2SiO4 1120 (1120)[81]; β-Ca2SiO4 -> α'-Ca2SiO4 970 (970)[81]. 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Levin, C.R. Robbins, H.F. McMurdie, A.C. Society, Phase Diagrams for Ceramists, American Ceramic Society, Columbus, Ohio, 1964.","status":"resolved","year":"1964"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":"CA-O-SI","before":"C-S","evidence":{"caption_systems":["C-S"],"cement_notation":true,"foreign_elements":[]},"field":"system","gate":"G4","rule":"system_from_phase_formulas_and_caption","visual_check":{"checked":"2026-10-23","image_sha256":"fac6e31d03a44e068529cfec192bb2d75fad68ec3e1586ec6bc0b13ddc3eaff2","page":9,"pdf_sha256_prefix":"c915e9e151d53dff","seen":"Table 9 'Summary of transitions and invariant reactions in the C-S system' (CaO-SiO2). Rows: γ-Ca2SiO4 -> α'-Ca2SiO4 1120 (1120)[81]; β-Ca2SiO4 -> α'-Ca2SiO4 970 (970)[81]. 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Rows: γ-Ca2SiO4 -> α'-Ca2SiO4 1120 (1120)[81]; β-Ca2SiO4 -> α'-Ca2SiO4 970 (970)[81]. Phases are Ca-Si-O oxides.","verdict":"confirmed"}},{"after":null,"before":"DIAMOND_A4","evidence":{"label":"α-Ca2SiO4","release":"phase-label-check 2026-10-24 (audit round 2, A2 class 1)"},"field":"phases.model_phase","gate":"PL","rule":"greek_or_compound_label_mapped_to_element_structure"}],"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true,"system_reassigned":true},"fold_lpo":2,"fold_lso":3,"id":"ORC-4RSLIV2MF3","locator":{"ref":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9","row":15},"model_unlinked_reason":"linked TDB not the reporting paper's own model (link basis: multicomponent TDB with 2 ternary parameters)","observation_type":"invariant_reaction","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.cemconres.2023.107309","own_work_of_paper":true},"paper":"doi:10.1016/j.cemconres.2023.107309","paper_id":"doi:10.1016/j.cemconres.2023.107309","phases":[{"label":"L","model_phase":"LIQUID"},{"label":"Ca3SiO5"},{"label":"α-Ca2SiO4","model_phase_rejected":{"model_phase":"DIAMOND_A4","pearson_symbol":"cF8","prototype":"C(diamond)","reason":"greek_or_compound_label_mapped_to_element_structure"}}],"pid":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9/r15#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"Liquid -> Ca3SiO5 + α-Ca2SiO4","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-O-SI","system":"CA-O-SI","system_stored":"C-S","temperature_K":2300.0,"temperature_printed":"2300","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":2300.0},{"chemical_system":"CA-O-SI","cited_sources":[{"first_author":"Levin","kind":"unknown","label":"52","reference":"E.M. 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Phases are Ca-Si-O oxides.","verdict":"confirmed"}},{"after":null,"before":"DIAMOND_A4","evidence":{"label":"α-Ca2SiO4","release":"phase-label-check 2026-10-24 (audit round 2, A2 class 1)"},"field":"phases.model_phase","gate":"PL","rule":"greek_or_compound_label_mapped_to_element_structure"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true,"system_reassigned":true},"fold_lpo":2,"fold_lso":3,"id":"ORC-XI7672DL65","locator":{"ref":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9","row":16},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.cemconres.2023.107309","paper_id":"doi:10.1016/j.cemconres.2023.107309","phases":[{"label":"L","model_phase":"LIQUID"},{"label":"Ca3SiO5"},{"label":"α-Ca2SiO4","model_phase_rejected":{"model_phase":"DIAMOND_A4","pearson_symbol":"cF8","prototype":"C(diamond)","reason":"greek_or_compound_label_mapped_to_element_structure"}}],"pid":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9/r16#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"Liquid -> Ca3SiO5 + α-Ca2SiO4","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-O-SI","system":"CA-O-SI","system_stored":"C-S","temperature_K":2323.0,"temperature_printed":"(2323)","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":2323.0},{"chemical_system":"CA-O-SI","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":"CA-O-SI","before":"C-S","evidence":{"caption_systems":["C-S"],"cement_notation":true,"foreign_elements":[]},"field":"system","gate":"G4","rule":"system_from_phase_formulas_and_caption","visual_check":{"checked":"2026-10-23","image_sha256":"fac6e31d03a44e068529cfec192bb2d75fad68ec3e1586ec6bc0b13ddc3eaff2","page":9,"pdf_sha256_prefix":"c915e9e151d53dff","seen":"Table 9 'Summary of transitions and invariant reactions in the C-S system' (CaO-SiO2). Rows: γ-Ca2SiO4 -> α'-Ca2SiO4 1120 (1120)[81]; β-Ca2SiO4 -> α'-Ca2SiO4 970 (970)[81]. Phases are Ca-Si-O oxides.","verdict":"confirmed"}},{"after":null,"before":"DIAMOND_A4","evidence":{"label":"α-Ca2SiO4","release":"phase-label-check 2026-10-24 (audit round 2, A2 class 1)"},"field":"phases.model_phase","gate":"PL","rule":"greek_or_compound_label_mapped_to_element_structure"}],"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true,"system_reassigned":true},"fold_lpo":2,"fold_lso":3,"id":"ORC-2A6TCWW62P","locator":{"ref":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9","row":17},"model_unlinked_reason":"linked TDB not the reporting paper's own model (link basis: multicomponent TDB with 2 ternary parameters)","observation_type":"invariant_reaction","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.cemconres.2023.107309","own_work_of_paper":true},"paper":"doi:10.1016/j.cemconres.2023.107309","paper_id":"doi:10.1016/j.cemconres.2023.107309","phases":[{"label":"L","model_phase":"LIQUID"},{"label":"α-Ca2SiO4","model_phase_rejected":{"model_phase":"DIAMOND_A4","pearson_symbol":"cF8","prototype":"C(diamond)","reason":"greek_or_compound_label_mapped_to_element_structure"}},{"label":"Ca3Si2O7"}],"pid":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9/r17#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"Liquid + α-Ca2SiO4 -> Ca3Si2O7","type":"peritectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-O-SI","system":"CA-O-SI","system_stored":"C-S","temperature_K":1741.0,"temperature_printed":"1741","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"peritectic","transition_kind_printed":"peritectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1741.0},{"chemical_system":"CA-O-SI","cited_sources":[{"first_author":"Levin","kind":"unknown","label":"52","reference":"E.M. Levin, C.R. Robbins, H.F. McMurdie, A.C. Society, Phase Diagrams for Ceramists, American Ceramic Society, Columbus, Ohio, 1964.","status":"resolved","year":"1964"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":"CA-O-SI","before":"C-S","evidence":{"caption_systems":["C-S"],"cement_notation":true,"foreign_elements":[]},"field":"system","gate":"G4","rule":"system_from_phase_formulas_and_caption","visual_check":{"checked":"2026-10-23","image_sha256":"fac6e31d03a44e068529cfec192bb2d75fad68ec3e1586ec6bc0b13ddc3eaff2","page":9,"pdf_sha256_prefix":"c915e9e151d53dff","seen":"Table 9 'Summary of transitions and invariant reactions in the C-S system' (CaO-SiO2). Rows: γ-Ca2SiO4 -> α'-Ca2SiO4 1120 (1120)[81]; β-Ca2SiO4 -> α'-Ca2SiO4 970 (970)[81]. Phases are Ca-Si-O oxides.","verdict":"confirmed"}},{"after":null,"before":"DIAMOND_A4","evidence":{"label":"α-Ca2SiO4","release":"phase-label-check 2026-10-24 (audit round 2, A2 class 1)"},"field":"phases.model_phase","gate":"PL","rule":"greek_or_compound_label_mapped_to_element_structure"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true,"system_reassigned":true},"fold_lpo":2,"fold_lso":3,"id":"ORC-3YHFAYW2ZO","locator":{"ref":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9","row":18},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.cemconres.2023.107309","paper_id":"doi:10.1016/j.cemconres.2023.107309","phases":[{"label":"L","model_phase":"LIQUID"},{"label":"α-Ca2SiO4","model_phase_rejected":{"model_phase":"DIAMOND_A4","pearson_symbol":"cF8","prototype":"C(diamond)","reason":"greek_or_compound_label_mapped_to_element_structure"}},{"label":"Ca3Si2O7"}],"pid":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9/r18#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"Liquid + α-Ca2SiO4 -> Ca3Si2O7","type":"peritectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-O-SI","system":"CA-O-SI","system_stored":"C-S","temperature_K":1737.0,"temperature_printed":"(1737)","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"peritectic","transition_kind_printed":"peritectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1737.0},{"chemical_system":"CA-O-SI","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":"CA-O-SI","before":"C-S","evidence":{"caption_systems":["C-S"],"cement_notation":true,"foreign_elements":[]},"field":"system","gate":"G4","rule":"system_from_phase_formulas_and_caption","visual_check":{"checked":"2026-10-23","image_sha256":"fac6e31d03a44e068529cfec192bb2d75fad68ec3e1586ec6bc0b13ddc3eaff2","page":9,"pdf_sha256_prefix":"c915e9e151d53dff","seen":"Table 9 'Summary of transitions and invariant reactions in the C-S system' (CaO-SiO2). Rows: γ-Ca2SiO4 -> α'-Ca2SiO4 1120 (1120)[81]; β-Ca2SiO4 -> α'-Ca2SiO4 970 (970)[81]. 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Rows: γ-Ca2SiO4 -> α'-Ca2SiO4 1120 (1120)[81]; β-Ca2SiO4 -> α'-Ca2SiO4 970 (970)[81]. 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Rows: γ-Ca2SiO4 -> α'-Ca2SiO4 1120 (1120)[81]; β-Ca2SiO4 -> α'-Ca2SiO4 970 (970)[81]. Phases are Ca-Si-O oxides.","verdict":"confirmed"}},{"after":null,"before":"DIAMOND_A4","evidence":{"label":"α-Ca2SiO4","release":"phase-label-check 2026-10-24 (audit round 2, A2 class 1)"},"field":"phases.model_phase","gate":"PL","rule":"greek_or_compound_label_mapped_to_element_structure"}],"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true,"system_reassigned":true},"fold_lpo":2,"fold_lso":3,"id":"ORC-WJABXBSM4Y","locator":{"ref":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9","row":23},"model_unlinked_reason":"linked TDB not the reporting paper's own model (link basis: multicomponent TDB with 2 ternary parameters)","observation_type":"invariant_reaction","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.cemconres.2023.107309","own_work_of_paper":true},"paper":"doi:10.1016/j.cemconres.2023.107309","paper_id":"doi:10.1016/j.cemconres.2023.107309","phases":[{"label":"α-Ca2SiO4","model_phase_rejected":{"model_phase":"DIAMOND_A4","pearson_symbol":"cF8","prototype":"C(diamond)","reason":"greek_or_compound_label_mapped_to_element_structure"}},{"label":"L","model_phase":"LIQUID"}],"pid":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9/r23#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"α-Ca2SiO4","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-O-SI","system":"CA-O-SI","system_stored":"C-S","temperature_K":2371.0,"temperature_printed":"2371","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":2371.0},{"chemical_system":"CA-O-SI","cited_sources":[{"doi":"10.2475/ajs.s4-39.229.1","first_author":"Rankin","kind":"unknown","label":"53","paper":"doi:10.2475/ajs.s4-39.229.1","reference":"G.A. Rankin, The ternary system CaO-Al2O3-SiO2, Am. J. Sci. XXXIX (1915) 1–79.","status":"resolved","year":"1915"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"corrections":[{"after":"CA-O-SI","before":"C-S","evidence":{"caption_systems":["C-S"],"cement_notation":true,"foreign_elements":[]},"field":"system","gate":"G4","rule":"system_from_phase_formulas_and_caption","visual_check":{"checked":"2026-10-23","image_sha256":"fac6e31d03a44e068529cfec192bb2d75fad68ec3e1586ec6bc0b13ddc3eaff2","page":9,"pdf_sha256_prefix":"c915e9e151d53dff","seen":"Table 9 'Summary of transitions and invariant reactions in the C-S system' (CaO-SiO2). Rows: γ-Ca2SiO4 -> α'-Ca2SiO4 1120 (1120)[81]; β-Ca2SiO4 -> α'-Ca2SiO4 970 (970)[81]. Phases are Ca-Si-O oxides.","verdict":"confirmed"}},{"after":null,"before":"DIAMOND_A4","evidence":{"label":"α-Ca2SiO4","release":"phase-label-check 2026-10-24 (audit round 2, A2 class 1)"},"field":"phases.model_phase","gate":"PL","rule":"greek_or_compound_label_mapped_to_element_structure"}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true,"system_reassigned":true},"fold_lpo":2,"fold_lso":3,"id":"ORC-FMQSFZRWUX","locator":{"ref":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9","row":24},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.cemconres.2023.107309","paper_id":"doi:10.1016/j.cemconres.2023.107309","phases":[{"label":"α-Ca2SiO4","model_phase_rejected":{"model_phase":"DIAMOND_A4","pearson_symbol":"cF8","prototype":"C(diamond)","reason":"greek_or_compound_label_mapped_to_element_structure"}},{"label":"L","model_phase":"LIQUID"}],"pid":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9/r24#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"α-Ca2SiO4","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-O-SI","system":"CA-O-SI","system_stored":"C-S","temperature_K":2403.0,"temperature_printed":"(2403)","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":2403.0},{"chemical_system":"CA-O-SI","conditions":{"kind":"not_applicable_own_calculation"},"corrections":[{"after":"CA-O-SI","before":"C-S","evidence":{"caption_systems":["C-S"],"cement_notation":true,"foreign_elements":[]},"field":"system","gate":"G4","rule":"system_from_phase_formulas_and_caption","visual_check":{"checked":"2026-10-23","image_sha256":"fac6e31d03a44e068529cfec192bb2d75fad68ec3e1586ec6bc0b13ddc3eaff2","page":9,"pdf_sha256_prefix":"c915e9e151d53dff","seen":"Table 9 'Summary of transitions and invariant reactions in the C-S system' (CaO-SiO2). Rows: γ-Ca2SiO4 -> α'-Ca2SiO4 1120 (1120)[81]; β-Ca2SiO4 -> α'-Ca2SiO4 970 (970)[81]. 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Rows: γ-Ca2SiO4 -> α'-Ca2SiO4 1120 (1120)[81]; β-Ca2SiO4 -> α'-Ca2SiO4 970 (970)[81]. Phases are Ca-Si-O oxides.","verdict":"confirmed"}}],"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true,"system_reassigned":true},"fold_lpo":2,"fold_lso":3,"id":"ORC-VOJWVSH7Q7","locator":{"ref":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9","row":26},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","measured_in":"doi:10.1016/j.cemconres.2023.107309","own_work_of_paper":true},"paper":"doi:10.1016/j.cemconres.2023.107309","paper_id":"doi:10.1016/j.cemconres.2023.107309","phases":[{"label":"cyclo-CaSiO3"},{"label":"L","model_phase":"LIQUID"}],"pid":"doi:10.1016/j.cemconres.2023.107309/p9/tab-9/r26#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"cyclo-CaSiO3","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CA-O-SI","system":"CA-O-SI","system_stored":"C-S","temperature_K":1817.0,"temperature_printed":"(1817)","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1817.0}],"release":"orchid-literature 2026-10-23 (record store db-v2.1: invariant/general v2.1.19r, text+context fixup-20261022)","system":"CA-O-SI"}