Formula: Na₂S₂O₄
CAS: 7775-14-6
EC No.: 231-890-0
M (Molar Mass): 174.11 g/mol
D (Density): 2.19 g/cm³
mp (Melting Point): Decomposes before melting
bp (Boiling Point): Not applicable
Optical Rotation: Not applicable
Chemicals Properties
Assay (Iodometric): ≥ 85.0 %
Appearance: White to greyish-white crystalline powder. Unstable in air.
Identification (Reducing agent): Decolorizes indigo carmine.
Solubility: Soluble in water.
Hazard Information
Hazard: Self-heating; may catch fire. In contact with water releases flammable gases. Harmful if swallowed.
Safety: Keep away from heat, sparks, open flames, and air. Handle under inert atmosphere if possible. Wear protective gloves and eye protection.
Storage: Store in a tightly closed container under an inert atmosphere (nitrogen) in a cool, dry, well-ventilated place away from moisture and oxidizing agents.
