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Arsenic(III) oxide

**** Identification ****
Name: Arsenic(III) oxide
Synonyms: Arsenic trioxide; Diarsenic trioxide; Arsenous oxide; White arsenic; Arsenous anhydride
Chinese Names: 三氧化二砷; 砒霜; 亚砷酸酐
Molecular Formula: As2O3
Molecular Weight: 197.84
CAS Number: 1327-53-3
EINECS: 215-481-4
**** Properties ****
Melting point: 312.3°C
Water solubility: 37 g/L (20°C)
**** Safety Data ****
Hazard Symbols: symbolsymbolT ;N Details
Risk Codes: R28;R34;R45;R50/53 Details
Safety Description: S45;S53;S60;S61 Details
Transport Information: UN 1561

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