Sodium Bisulfite NaHSO3
  Solid Solution
NaHSO3 % 99 37
Fe % 0.003 0.003
As % 0.0002
Pb % 0.001
Chloride % 0.04
Insoluble matter % 0.05

Uses in Food Industry
Sodium bisulfite, is used in almost all commercial wines to prevent oxidation and preserve flavor. In fruit canning, sodium bisulfite is used to prevent browning (caused by oxidation) and to kill microbes.

Uses in Other Industries
Sodium bisulfite is a common reducing agent in the chemical industries. It is usually added to large piping systems to prevent oxidative corrosion. In biochemical engineering applications, it is helpful to maintain anaerobic conditions within a reactor.
Main products : Activated Carbon , Poly-aluminium Chloride(PAC) , Sodium Bisulfite , Sodium Hypochlorite