{"artifacts":{"doi:10.1361/154770306x116289/p1/text-12":{"artifact":"text_passage","label":"page 1, passage 12","page":1},"doi:10.1361/154770306x116289/p3/text-08":{"artifact":"text_passage","label":"page 3, passage 8","page":3},"doi:10.1361/154770306x116289/p3/text-09":{"artifact":"text_passage","label":"page 3, passage 9","page":3},"doi:10.1361/154770306x116289/p8/text-07":{"artifact":"text_passage","label":"page 8, passage 7","page":8}},"cite_as":{"also_cite":["the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work)"],"bibtex":"@misc{orchid_literature_2026,\n  author    = {Arr{\\'o}yave, Raymundo and Saal, James and Shin, Dongwon},\n  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},\n  version   = {2026.10},\n  publisher = {Zenodo},\n  year      = {2026},\n  doi       = {10.5281/zenodo.23735569},\n  url       = {https://doi.org/10.5281/zenodo.23735569},\n  note      = {Version 1, machine-extracted}\n}","dataset":"literature","doi":"10.5281/zenodo.23735569","license":"CC-BY-4.0","part_of":{"bibtex":"@misc{orchid_data_2026,\n  author    = {Arr{\\'o}yave, Raymundo and Saal, James and Shin, Dongwon},\n  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},\n  version   = {2026.10},\n  publisher = {Zenodo},\n  year      = {2026},\n  doi       = {10.5281/zenodo.23736065},\n  url       = {https://doi.org/10.5281/zenodo.23736065},\n  note      = {Version 1, machine-extracted}\n}","doi":"10.5281/zenodo.23736065","text":"R. 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":["CR","O"],"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:10.1361/154770306x116289":{"authors":["Erwin Povoden","A. Nicholas Grundy","Ludwig J. Gauckler"],"citation":"Erwin Povoden, A. Nicholas Grundy, Ludwig J. Gauckler, Thermodynamic Reassessment of the Cr-O System in the Framework of Solid Oxide Fuel Cell (SOFC) Research, Journal of Phase Equilibria &amp; Diffusion 27, 353-362 (2006).","container":"Journal of Phase Equilibria &amp; Diffusion","doi":"10.1361/154770306x116289","doi_url":"https://doi.org/10.1361/154770306x116289","id":"doi:10.1361/154770306x116289","kind":"corpus_paper","metadata_source":"crossref","pdf_sha256_prefix":"8c36e9c3047edfcc","roles":["reporting_paper"],"source_kinds":["journal_article"],"title":"Thermodynamic Reassessment of the Cr-O System in the Framework of Solid Oxide Fuel Cell (SOFC) Research","year":2006}},"part":1,"parts":1,"records":[{"chemical_system":"CR-O","citations_printed":["6"],"cited_sources":[{"first_author":"McNally","kind":"unknown","label":"6","reference":"R.N. McNally, F.I. Peters, and P.H. Ribbe, Laboratory Fur- nace for Studies in Controlled Atmospheres; Melting Points of MgO in a N2 Atmosphere and of Cr2O3 in N2 and in Air Atmospheres, J. Am. Ceram. Soc., 1961, 44(10), p 491-493","status":"resolved","year":"1961"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","dropped_field_count":1,"espei_certified":false,"espei_ready":false,"extraction_accepted":false,"gate_failures":["state_phases_missing"],"has_dropped_fields":true,"review_flags":["NOTE_SELF_FLAG"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":4,"gate_failures":[{"code":"state_phases_missing","detail":"TRANSITION_TEMPERATURE without the phases of its state (not_a_single_phase_transition)","effect":"not_accepted","gate":"R3"}],"id":"ORC-WPRS6SAVFC","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1361/154770306x116289/p1/text-12"},"method":"induction furnace","method_basis":"printed in the quoted sentence (fix-up 2026-10-22 gate)","observation_type":"phase_transition","origin":{"class":"experimental","own_work_of_paper":false},"paper":"doi:10.1361/154770306x116289","paper_id":"doi:10.1361/154770306x116289","pid":"doi:10.1361/154770306x116289/p1/text-12/s05#phase_transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","quote":"McNally[6] measured a melting temperature of 2603 K in air using an induction furnace.","quote_page":1,"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CR-O","system":"CR-O","temperature_K":2603.0,"temperature_printed":"2603 K","tool_release":"release v2 + tools dev copy record build","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":10.0,"sigma_method":{"basis":"prior","ci95":null,"class":"experimental_unspecified","entry":"value_types/T_TRANSITION/classes/experimental_unspecified","floor":10.0,"floor_unit":"K","n_pairs":0,"prior_source":"orchid_assumed","value":10.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":2603.0},{"chemical_system":"CR-O","conditions":{"kind":"paper_context_not_extracted","paper":"doi:10.1361/154770306x116289"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":4,"id":"ORC-7LADEUDZEX","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1361/154770306x116289/p3/text-08"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"experimental","measured_in":"doi:10.1361/154770306x116289","own_work_of_paper":true},"paper":"doi:10.1361/154770306x116289","paper_id":"doi:10.1361/154770306x116289","phases":[{"label":"eskolaite"}],"pid":"doi:10.1361/154770306x116289/p3/text-08/s03#phase_transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","quote":"Eskolaite shows an antiferromagnetic to paramagnetic transition at 305.5 K.","quote_page":3,"reaction":{"type":"magnetic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CR-O","system":"CR-O","temperature_K":305.5,"temperature_printed":"305.5 K","tool_release":"release v2 + tools dev copy record build","transition_kind":"magnetic","transition_kind_printed":"magnetic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":16.0,"sigma_method":{"basis":"calibrated","ci95":[10.483565,26.208913],"class":"unknown","entry":"value_types/T_TRANSITION/classes/unknown","floor":16.0,"floor_unit":"K","n_pairs":274,"value":16.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":305.5},{"chemical_system":"CR-O","citations_printed":["Bunting[7]"],"cited_sources":[{"first_author":"Bunting","kind":"unknown","label":"7","reference":"E.N. Bunting, Phase Equilibria in the System Cr2O3-Al2O3, J. Res. Nat. Bur. Stand., 1931, 6(6), p 947-949","status":"resolved","year":"1931"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_flags":["NOTE_SELF_FLAG"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":4,"id":"ORC-22JWIFLKKA.e40b08","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1361/154770306x116289/p3/text-09"},"observation_type":"phase_transition","origin":{"class":"experimental","own_work_of_paper":false},"paper":"doi:10.1361/154770306x116289","paper_id":"doi:10.1361/154770306x116289","phases":[{"label":"Cr2O3"},{"label":"liquid"}],"pid":"doi:10.1361/154770306x116289/p3/text-09/s02#phase_transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","quote":"Their calculated liquidus temperature of Cr2O3 in air is 2571.16 K, which is in good agreement with an early finding by Bunting[7] who measured 2543 ± 25 K.","quote_page":3,"reaction":{"type":"other"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CR-O","system":"CR-O","temperature_K":2543.0,"temperature_printed":"2543 K","tool_release":"release v2 + tools dev copy record build","transition_kind":"other","transition_kind_printed":"liquidus","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":16.0,"sigma_method":{"basis":"calibrated","ci95":[10.483565,26.208913],"class":"unknown","entry":"value_types/T_TRANSITION/classes/unknown","floor":16.0,"floor_unit":"K","n_pairs":274,"value":16.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":2543.0},{"chemical_system":"CR-O","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","dropped_field_count":2,"espei_certified":false,"espei_ready":false,"extraction_accepted":true,"has_dropped_fields":true,"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":4,"id":"ORC-22JWIFLKKA.f980e8","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1361/154770306x116289/p3/text-09"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1361/154770306x116289","own_work_of_paper":true},"paper":"doi:10.1361/154770306x116289","paper_id":"doi:10.1361/154770306x116289","phases":[{"label":"Cr2O3"},{"label":"liquid"}],"pid":"doi:10.1361/154770306x116289/p3/text-09/s02#phase_transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","quote":"Their calculated liquidus temperature of Cr2O3 in air is 2571.16 K, which is in good agreement with an early finding by Bunting[7] who measured 2543 ± 25 K.","quote_page":3,"reaction":{"type":"other"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CR-O","system":"CR-O","temperature_K":2571.16,"temperature_printed":"2571.16 K","tool_release":"release v2 + tools dev copy record build","transition_kind":"other","transition_kind_printed":"liquidus","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":10.0,"sigma_method":{"basis":"prior","ci95":null,"class":"model_calculated","entry":"model/T_TRANSITION","floor":10.0,"floor_unit":"K","n_pairs":129,"value":10.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":2571.16},{"chemical_system":"CR-O","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":false,"gate_failures":["state_phases_missing"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":4,"gate_failures":[{"code":"state_phases_missing","detail":"TRANSITION_TEMPERATURE without the phases of its state (not_a_single_phase_transition)","effect":"not_accepted","gate":"R3"}],"id":"ORC-B5PNSHH53C.c1bc07","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1361/154770306x116289/p8/text-07"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1361/154770306x116289","own_work_of_paper":true},"paper":"doi:10.1361/154770306x116289","paper_id":"doi:10.1361/154770306x116289","pid":"doi:10.1361/154770306x116289/p8/text-07/s03#phase_transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","quote":"The calculated liquidus temperature of eskolaite in air is 2539 K, in good agreement with the measurement from Bunting.[7]","quote_page":8,"reaction":{"type":"other"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CR-O","system":"CR-O","temperature_K":2539.0,"temperature_printed":"2539 K","tool_release":"release v2 + tools dev copy record build","transition_kind":"other","transition_kind_printed":"liquidus","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":10.0,"sigma_method":{"basis":"prior","ci95":null,"class":"model_calculated","entry":"model/T_TRANSITION","floor":10.0,"floor_unit":"K","n_pairs":129,"value":10.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":2539.0},{"chemical_system":"CR-O","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":false,"gate_failures":["state_phases_missing"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":4,"gate_failures":[{"code":"state_phases_missing","detail":"TRANSITION_TEMPERATURE without the phases of its state (not_a_single_phase_transition)","effect":"not_accepted","gate":"R3"}],"id":"ORC-B5PNSHH53C.cc0e10","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1361/154770306x116289/p8/text-07"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1361/154770306x116289","own_work_of_paper":true},"paper":"doi:10.1361/154770306x116289","paper_id":"doi:10.1361/154770306x116289","pid":"doi:10.1361/154770306x116289/p8/text-07/s03#phase_transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","quote":"For the monotectic temperature of the reaction of Cr (bcc) and liquid, the present authors calculate 2117 K, and for the eutectic one gets 1938 K at a mole fraction of oxygen of 0.497.","quote_page":8,"reaction":{"type":"other"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CR-O","system":"CR-O","temperature_K":2117.0,"temperature_printed":"2117 K","tool_release":"release v2 + tools dev copy record build","transition_kind":"other","transition_kind_printed":"other","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":10.0,"sigma_method":{"basis":"prior","ci95":null,"class":"model_calculated","entry":"model/T_TRANSITION","floor":10.0,"floor_unit":"K","n_pairs":129,"value":10.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":2117.0},{"chemical_system":"CR-O","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":false,"gate_failures":["state_phases_missing"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":4,"gate_failures":[{"code":"state_phases_missing","detail":"INVARIANT_TEMPERATURE without the phases of its state (reactions_in_quote:0)","effect":"not_accepted","gate":"R3"}],"id":"ORC-B5PNSHH53C.f96283","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1361/154770306x116289/p8/text-07"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1361/154770306x116289","own_work_of_paper":true},"paper":"doi:10.1361/154770306x116289","paper_id":"doi:10.1361/154770306x116289","pid":"doi:10.1361/154770306x116289/p8/text-07/s03#phase_transition","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","quote":"For the monotectic temperature of the reaction of Cr (bcc) and liquid, the present authors calculate 2117 K, and for the eutectic one gets 1938 K at a mole fraction of oxygen of 0.497.","quote_page":8,"reaction":{"type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CR-O","system":"CR-O","temperature_K":1938.0,"temperature_printed":"1938 K","tool_release":"release v2 + tools dev copy record build","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":1938.0},{"chemical_system":"CR-O","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":false,"gate_failures":["state_phases_missing"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":4,"gate_failures":[{"code":"state_phases_missing","detail":"TRANSITION_TEMPERATURE without the phases of its state (not_a_single_phase_transition)","effect":"not_accepted","gate":"R3"}],"id":"ORC-JTS3YFGBFT","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1361/154770306x116289/p8/text-07"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1361/154770306x116289","own_work_of_paper":true},"paper":"doi:10.1361/154770306x116289","paper_id":"doi:10.1361/154770306x116289","pid":"doi:10.1361/154770306x116289/p8/text-07/s04#phase_transition","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"TRANSITION_TEMPERATURE","property_group":"phase transition","quote":"Cr3O4 is formed at 1918 K by a eutectoid reaction Cr2O3 + Cr + 1⁄2 O2 → Cr3O4.","quote_page":8,"reaction":{"printed":"Cr2O3 + Cr + 1⁄2 O2 → Cr3O4","type":"other"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CR-O","system":"CR-O","temperature_K":1918.0,"temperature_printed":"1918 K","tool_release":"release v2 + tools dev copy record build","transition_kind":"other","transition_kind_printed":"other","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":10.0,"sigma_method":{"basis":"prior","ci95":null,"class":"model_calculated","entry":"model/T_TRANSITION","floor":10.0,"floor_unit":"K","n_pairs":129,"value":10.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.05},"sigma_scatter":null,"unit":"K","value_type":"T_TRANSITION"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1918.0},{"chemical_system":"CR-O","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":false,"gate_failures":["state_phases_missing"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":4,"gate_failures":[{"code":"state_phases_missing","detail":"INVARIANT_TEMPERATURE without the phases of its state (reactions_in_quote:0)","effect":"not_accepted","gate":"R3"}],"id":"ORC-GNLVENDC3L","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1361/154770306x116289/p8/text-07"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1361/154770306x116289","own_work_of_paper":true},"paper":"doi:10.1361/154770306x116289","paper_id":"doi:10.1361/154770306x116289","pid":"doi:10.1361/154770306x116289/p8/text-07/s05#phase_transition","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","quote":"At a mole fraction of oxygen >0.497 it decomposes in a peritectic reaction at 1973 K that forms Cr2O3 and liquid.","quote_page":8,"reaction":{"type":"peritectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash","readers":["claude-opus-5.5","gemini-3.8-flash"],"record_kind":"running_text","source_system":"CR-O","system":"CR-O","temperature_K":1973.0,"temperature_printed":"1973 K","tool_release":"release v2 + tools dev copy record build","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":1973.0}],"release":"orchid-literature 2026-10-23 (record store db-v2.1: invariant/general v2.1.19r, text+context fixup-20261022)","system":"CR-O"}