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Sodium dithionite

**** Identification ****
Name: Sodium dithionite
Synonyms: Dithionous acid disodium salt; Sodium hypodisulfite
Chinese Names: 连二亚硫酸钠; 保险粉; 次亚硫酸钠; 低亚硫酸钠
Molecular Formula: Na2S2O4
Molecular Weight: 174.10
CAS Number: 7775-14-6
EINECS: 231-890-0
**** Properties ****
Melting point: 300°C (dec.)
Water solubility: 250 g/L (20°C)
**** Safety Data ****
Hazard Symbols: symbolXn Details
Risk Codes: R22;R31;R7 Details
Safety Description: S26;S28A;S43E;S7/8 Details
Transport Information: UN 1384

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