Volatile at high temperatures; Critical temperature: 1102°C; Density: 4.921 at 17°C; Dipole moment: 1.58; Heat capacity: 96 J/mol.k (solid); 144 J/mol.K (liquid); Entropy: 216 J/mol.K at 298°C; Antimony triiodide's red rhombohedral crystals are intermediate in structure between a molecular and an ionic crystal. In antimony triiodide vapor there is no indication of association. Tendency to sublime becomes noticeable at 100°C; dipole moment: 1.58; decomposed by water and air to SbOI (antimony oxyiodide). Standard Heat of Formation = -100 kJ/mol (crystal); Enthalpy of fusion: 22.8 kJ/mol at mp Storage: Stable under recommended storage conditions. Synonyms: KS-000018TM; DTXSID1064875; Antimony iodide; HSDB 437; KWQLUUQBTAXYCB-UHFFFAOYSA-K; AC1L2NKH; 8762AF; SbI3; Triiodostibine; I14-56697 Smiles: [Sb](I)(I)I; Information provided by Alfa Chemistry Materials. |
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