Product name : Sodium Metabisulphite
Other Names: Sodium Metabisufite;Sodium Pyrosulfite; SMBS; Disodium Metabisulfite; Disodium Pyrosulphite;Fertisilo;Metabisulfitede Sodium; Sodium Metabisulfite (Na2S2O5);Sodium Pyrosulfite(Na2S2O5); Sodium Dissulfite;Sodium Disulphite; Sodium Pyrosulphite.
Appearance: white or yellow crystal powder or small crystal ;Storage for a long time color gradient yellow.
PH: 4.0 to 4.6
Category: Antioxidants.
Molecular formula : Na2S2O5
The molecular weight : 190.10
CAS : 7681-57-4
EINECS : 231-673-0
Melting point: 150℃ (decomposition)
Relative density (water =1) : 1.48