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In this way the stability regions ''gas (G) + a-SnS\", ''G + Sn2S3\" and ''G + SnS2\" at 823 K are identified in the P-x diagram as shown in Fig. 3.","quote_page":5,"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":"S-SN","system":"S-SN","temperature_K":823.0,"temperature_printed":"823 K","tool_release":"release v2 + tools dev copy record build","uncertainty":{"basis":"stated_default","note":"10% placeholder; none printed","value":0.0776},"uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":null,"sigma_effective_reason":"no method floor defined for property VAPOR_PRESSURE","sigma_method":{"reason":"no method floor defined for property VAPOR_PRESSURE","value":null},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.0005},"sigma_scatter":null,"unit":"mbar","value_type":null}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"mbar","value":0.776}],"release":"orchid-literature 2026-10-23 (record store db-v2.1: invariant/general v2.1.19r, text+context fixup-20261022)","system":"S-SN"}