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Names | |||
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Preferred IUPAC name
Antimony trichloride | |||
Systematic IUPAC name
Trichlorostibane | |||
Other names
Antimony(III) chloride, Butter of antimony, Antimonous chloride, Stibous chloride, Trichlorostibine
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Identifiers | |||
3D model (JSmol)
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ChEBI | |||
ChemSpider | |||
ECHA InfoCard | 100.030.031 | ||
EC Number |
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KEGG | |||
MeSH | Antimony+trichloride | ||
PubChem CID
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RTECS number |
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UNII | |||
UN number | 1733 | ||
CompTox Dashboard (EPA)
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Properties | |||
Cl3Sb | |||
Molar mass | 228.11 g·mol−1 | ||
Appearance | Colorless solid, very hygroscopic | ||
Odor | Sharp, pungent | ||
Density | 3.14 g/cm3 (25 °C) 2.51 g/cm3 (150 °C)[1] | ||
Melting point | 73.4 °C (164.1 °F; 346.5 K)[5] | ||
Boiling point | 223.5 °C (434.3 °F; 496.6 K) | ||
601.1 g/100 ml (0 °C)[1] 985.1 g/100 mL (25 °C) 1.357 kg/100 mL (40 °C)[2] | |||
Solubility | Soluble in acetone, ethanol, CH2Cl2, phenyls, ether, dioxane, CS2, CCl4, CHCl3, cyclohexane, selenium(IV) oxychloride Insoluble in pyridine, quinoline, organic bases | ||
Solubility in acetic acid | 143.9 g/100 g (0 °C) 205.8 g/100 g (10 °C) 440.5 g/100 g (25 °C)[3] 693.7 g/100 g (45 °C)[2] | ||
Solubility in acetone | 537.6 g/100 g (18 °C)[2][3] | ||
Solubility in benzoyl chloride | 139.2 g/100 g (15 °C) 169.5 g/100 g (25 °C)[3] 2.76 kg/100 g (70 °C)[2] | ||
Solubility in hydrochloric acid | 20 °C: 8.954 g/ g (4.63% w/w) 8.576 g/ g (14.4% w/w) 7.898 g/ g (36.7% w/w)[2] | ||
Solubility in p-Cymene | 69.5 g/100 g (-3.5 °C) 85.5 g/100 g (10 °C) 150 g/100 g (30 °C) 2.17 kg/100 g (70 °C)[2] | ||
Vapor pressure | 13.33 Pa (18.1 °C)[3] 0.15 kPa (50 °C) 2.6 kPa (100 °C)[4] | ||
-86.7·10−6 cm3/mol | |||
Refractive index (nD)
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1.46[1] | ||
Structure | |||
Orthorhombic | |||
3.93 D (20 °C)[3] | |||
Thermochemistry | |||
Heat capacity (C)
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183.3 J/mol·K[3] | ||
Std molar
entropy (S⦵298) |
110.5 J/mol·K[3] | ||
Std enthalpy of
formation (ΔfH⦵298) |
-381.2 kJ/mol[3] | ||
Gibbs free energy (ΔfG⦵)
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-322.5 kJ/mol[3] | ||
Hazards | |||
GHS labelling: | |||
[5] | |||
Danger | |||
H314, H411[5] | |||
P273, P280, P305+P351+P338, P310[5] | |||
NFPA 704 (fire diamond) | |||
Flash point | Non-flammable | ||
Lethal dose or concentration (LD, LC): | |||
LD50 (median dose)
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525 mg/kg (oral, rat) | ||
NIOSH (US health exposure limits): | |||
PEL (Permissible)
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TWA 0.5 mg/m3 (as Sb)[6] | ||
REL (Recommended)
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TWA 0.5 mg/m3 (as Sb)[6] | ||
Safety data sheet (SDS) | ICSC 1224 | ||
Related compounds | |||
Other anions
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Antimony trifluoride Antimony tribromide Antimony triiodide | ||
Other cations
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Nitrogen trichloride Phosphorus trichloride Arsenic trichloride Bismuth chloride | ||
Related compounds
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Antimony pentachloride | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Antimony trichloride is the chemical compound with the formula SbCl3. It is a soft colorless solid with a pungent odor and was known to alchemists as butter of antimony.