Names | |
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IUPAC name
Diammonium thiosulfate
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Other names
Ammonium thiosulphate, ATS
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.029.074 |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
[NH4]2S2O3 | |
Molar mass | 148.20 g·mol−1 |
Appearance | colorless or white, hygroscopic solid |
Density | 1.679 g/cm3 |
Melting point | decomposes at 100 °C |
173 g/100 mL (20 °C) | |
Solubility | slightly soluble in acetone insoluble in alcohol |
Structure | |
monoclinic | |
Hazards | |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
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2980 mg/kg (rat, oral) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Ammonium thiosulfate (ammonium thiosulphate in British English) is an inorganic compound with the formula [NH4]2S2O3. It is white crystalline solid with ammonia odor, readily soluble in water, slightly soluble in acetone and insoluble in ethanol and diethyl ether.[1]