Sodium Metabisulphite

About Sodium Metabisulphite

Accessible in white powder form, Sodium Metabisulphite has maximum 10 ppm ferrous content. This chemical easily dilutes in water and glycerol and its storage life is 2 years. This substance is slightly soluble in C2H5OH and readily dilutes in eethanol. It also dilutes in sodium bisulfite. It is accessible in 98% pure form and its molar mass is 190.095g/mol. When exposed to water, Sodium Metabisulphite smells like sulphur dioxide. Density of this chemical is 1.4 g/cm3. It tends to decompose when heat is applied.

Product Details ofSodium Metabisulphite:

• Product Name : Sodium Metabisulphite
• Chemical Names : Sodium metabisulfite; Sodium pyrosulfite; 7681-57-4; Sodium disulfite; Disodium pyrosulfite
• PubChem CID : 656671
• Molecular Formula : Na₂S₂O₅ or Na₂O₅S₂
• Molecular Weight : 190.095 g/mol
• CAS Number : 7681-57-4
• Color : White granular or powdered salt
• Odor : In the presences of traces of water, it develops an odor of sulfur dioxide
• Boiling Point : Decomposes
• Melting Point : >302 deg F (decomposes)
• Solubility : Freely soluble in water, glycerol ; slightly soluble in alcohol ; Soluble in ethanol ; Very soluble in sodium bisulfite
• Density : 1.4 g/cm³
• Stability : On exposure to air and moisture is slowly oxidized to sulfate.
• Decomposition : Decomposes on heating with ultimate formation of sodium sulfate.