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[4] indicated a liquid-liquid equilibrium at the lead molar fraction Xpb = 0.865 and temperature 590 K.","quote_page":2,"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":"GA-PB","system":"GA-PB","temperature_K":590.0,"temperature_printed":"590 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":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":590.0},{"chemical_system":"GA-PB","citations_printed":["[8]"],"cited_sources":[{"first_author":"Predel","kind":"unknown","label":"8","reference":"B. Predel, Z. MetaUkde., 50 (11) (1959) 663-667.","status":"resolved","year":"1959"}],"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":false,"gate_failures":["state_phases_missing"],"review_state":"proposed","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":0,"gate_failures":[{"code":"state_phases_missing","detail":"INVARIANT_TEMPERATURE without the phases of its state (reactions_in_quote:2)","effect":"not_accepted","gate":"R3"}],"id":"ORC-YJ3YKGOBR3","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1016/0925-8388(95)02178-7/p2/text-07"},"method":"differential thermal analysis","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:10.1016/0925-8388(95)02178-7","paper_id":"doi:10.1016/0925-8388(95)02178-7","pid":"doi:10.1016/0925-8388(95)02178-7/p2/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":"Predel [8] was the first to explore the [Ga + Pb] equilibrium phase over the entire molar fraction range by differential thermal analysis. Many experimental points were reported in his work, from which the liquid miscibility gap has been drawn (Fig. 1). The coordinates of the monotectic point are Xpb = 0.945 and T = 586 K and the critical","quote_page":2,"reaction":{"type":"monotectic"},"reader_agreement":"single_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"unconfirmed (single reader)","reader_tier":"preliminary_flash","readers":["gemini-3.8-flash"],"record_kind":"running_text","source_system":"GA-PB","system":"GA-PB","temperature_K":586.0,"temperature_printed":"586 K","tool_release":"release v2 + tools dev copy record build","transition_kind":"monotectic","transition_kind_printed":"monotectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":5.0,"sigma_method":{"basis":"prior","ci95":null,"class":"thermal_analysis","entry":"value_types/T_INVARIANT/classes/thermal_analysis","floor":5.0,"floor_unit":"K","n_pairs":0,"prior_source":"orchid_assumed","value":5.0},"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":586.0},{"chemical_system":"GA-PB","citations_printed":["[13]"],"cited_sources":[{"doi":"10.1016/0022-5088(71)90093-2","first_author":"Predel","kind":"unknown","label":"13","paper":"doi:10.1016/0022-5088(71)90093-2","reference":"B. Predel and D.W. Stein, J. Less-Common Met., 24 (1971) 159-171.","status":"resolved","year":"1971"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","dropped_field_count":2,"espei_certified":false,"espei_ready":false,"extraction_accepted":true,"gate_failures":["unsigned_in_print"],"has_dropped_fields":true,"review_flags":["NOTE_SELF_FLAG"],"review_state":"extracted","second_reader":"done","unsigned_in_print":true,"value_in_quote":true},"fold_lpo":4,"fold_lso":0,"gate_failures":[{"code":"unsigned_in_print","detail":"minus sign absent in print","effect":"not_espei_ready","gate":"G3"}],"id":"ORC-JXZYZ7XT2P","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1016/0925-8388(95)02178-7/p3/text-15"},"method":"calorimetry","method_basis":"printed in the quoted sentence (fix-up 2026-10-22 gate)","observation_type":"equilibrium_property","origin":{"class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/0925-8388(95)02178-7","paper_id":"doi:10.1016/0925-8388(95)02178-7","pid":"doi:10.1016/0925-8388(95)02178-7/p3/text-15/s02#equilibrium_property","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"HM_MIX","property_group":"mixing / partial","property_printed":"AmixH °","quote":"Prede~ and Stein [13], by calorimetry at 923 K, have determined the integral molar enthalpy of mixing: the extremum of the AmixH ° =f(Xpb) curve is located at 3850 J mol-1 and Xeb = 0.52 (Table 2).","quote_page":3,"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":"GA-PB","system":"GA-PB","temperature_K":923.0,"temperature_printed":"923 K","tool_release":"release v2 + tools dev copy record build","uncertainty":{"basis":"stated_default","note":"10% placeholder; 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Option I Calculated coordinates: eutectic X l i q , Pb = 0.0002; X f c c , Pb = 0.9999; T = 302.9 K m o n o t e c t i c X,iq~' Pb = 0.0283; Xliq2' Pb = 0.9605; Xfcc, Pb = 0.9955; T - - 583.8 K critical point X l i q , Pb = 0.468; T = 879.3 K","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":"GA-PB","system":"GA-PB","temperature_K":879.3,"temperature_printed":"879.3 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":879.3},{"chemical_system":"GA-PB","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_flags":["NOTE_SELF_FLAG"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":0,"gate_failures":[{"code":"state_phases_missing","detail":"INVARIANT_TEMPERATURE without the phases of its state (reactions_in_quote:8)","effect":"not_accepted","gate":"R3"}],"id":"ORC-OZE5YC6WRP.43889c","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1016/0925-8388(95)02178-7/p8/text-64"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1016/0925-8388(95)02178-7","own_work_of_paper":true},"paper":"doi:10.1016/0925-8388(95)02178-7","paper_id":"doi:10.1016/0925-8388(95)02178-7","pid":"doi:10.1016/0925-8388(95)02178-7/p8/text-64/s01#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":"5.2.1. Option I Calculated coordinates: eutectic X l i q , Pb = 0.0002; X f c c , Pb = 0.9999; T = 302.9 K m o n o t e c t i c X,iq~' Pb = 0.0283; Xliq2' Pb = 0.9605; Xfcc, Pb = 0.9955; T - - 583.8 K critical point X l i q , Pb = 0.468; T = 879.3 K","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":"GA-PB","system":"GA-PB","temperature_K":302.9,"temperature_printed":"302.9 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":302.9},{"chemical_system":"GA-PB","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_flags":["NOTE_SELF_FLAG"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":0,"gate_failures":[{"code":"state_phases_missing","detail":"INVARIANT_TEMPERATURE without the phases of its state (reactions_in_quote:6)","effect":"not_accepted","gate":"R3"}],"id":"ORC-XRYACTX2GF.8b9f6c","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1016/0925-8388(95)02178-7/p9/text-76"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1016/0925-8388(95)02178-7","own_work_of_paper":true},"paper":"doi:10.1016/0925-8388(95)02178-7","paper_id":"doi:10.1016/0925-8388(95)02178-7","pid":"doi:10.1016/0925-8388(95)02178-7/p9/text-76/s01#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":"R e m a r k : the use of option II information leads us to the following thermodynamic results. Calculated coordinates: eutectic Xliq, Pb ~--- 0.0002; xfcc, Pb 0.9999; T = 302.9 K monotectic X,ql, eb = 0.0279; xliq> Pb = 0.9611; Xfcc,Pb ~-0.9956; T = 584 K critical point xl.q, Pb = 0.466; T = 885 K","quote_page":9,"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":"GA-PB","system":"GA-PB","temperature_K":302.9,"temperature_printed":"302.9 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":302.9},{"chemical_system":"GA-PB","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","dropped_field_count":4,"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":0,"gate_failures":[{"code":"state_phases_missing","detail":"INVARIANT_TEMPERATURE without the phases of its state (reactions_in_quote:6)","effect":"not_accepted","gate":"R3"}],"id":"ORC-XRYACTX2GF.999d5e","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1016/0925-8388(95)02178-7/p9/text-76"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1016/0925-8388(95)02178-7","own_work_of_paper":true},"paper":"doi:10.1016/0925-8388(95)02178-7","paper_id":"doi:10.1016/0925-8388(95)02178-7","pid":"doi:10.1016/0925-8388(95)02178-7/p9/text-76/s01#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":"R e m a r k : the use of option II information leads us to the following thermodynamic results. Calculated coordinates: eutectic Xliq, Pb ~--- 0.0002; xfcc, Pb 0.9999; T = 302.9 K monotectic X,ql, eb = 0.0279; xliq> Pb = 0.9611; Xfcc,Pb ~-0.9956; T = 584 K critical point xl.q, Pb = 0.466; T = 885 K","quote_page":9,"reaction":{"type":"monotectic"},"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":"GA-PB","system":"GA-PB","temperature_K":584.0,"temperature_printed":"584 K","tool_release":"release v2 + tools dev copy record build","transition_kind":"monotectic","transition_kind_printed":"monotectic","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":584.0},{"chemical_system":"GA-PB","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_flags":["NOTE_SELF_FLAG"],"review_state":"extracted","second_reader":"done","value_in_quote":true},"fold_lpo":4,"fold_lso":0,"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-XRYACTX2GF.a92f30","link_rule":"quote verbatim on one page/passage + printed value inside quote","locator":{"ref":"doi:10.1016/0925-8388(95)02178-7/p9/text-76"},"observation_type":"phase_transition","origin":{"attribution_note":"no printed citation: the paper's own statement","class":"model_value","measured_in":"doi:10.1016/0925-8388(95)02178-7","own_work_of_paper":true},"paper":"doi:10.1016/0925-8388(95)02178-7","paper_id":"doi:10.1016/0925-8388(95)02178-7","pid":"doi:10.1016/0925-8388(95)02178-7/p9/text-76/s01#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":"R e m a r k : the use of option II information leads us to the following thermodynamic results. Calculated coordinates: eutectic Xliq, Pb ~--- 0.0002; xfcc, Pb 0.9999; T = 302.9 K monotectic X,ql, eb = 0.0279; xliq> Pb = 0.9611; Xfcc,Pb ~-0.9956; T = 584 K critical point xl.q, Pb = 0.466; T = 885 K","quote_page":9,"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":"GA-PB","system":"GA-PB","temperature_K":885.0,"temperature_printed":"885 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":885.0}],"release":"orchid-literature 2026-10-23 (record store db-v2.1: invariant/general v2.1.19r, text+context fixup-20261022)","system":"GA-PB"}