Industry | Power Generation, Food & Beverage, Chemical Processing, Pulp & Paper |
Categories | Boiler Water Treatment Chemicals, Cooling Water Treatment Chemicals, ETP Treatment Chemicals, RO Membrane Treatment Chemicals |
Application | Desalination, dechloronisation |
Minimum Order Quantity | 1 Metric Ton |
Sodium bisulfite is a common reducing agent in the chemical industry, as it readily reacts with dissolved oxygen:
2 NaHSO3 + O2 → 2 NaHSO4It 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. Sodium Bisulfite should not be confused with sodium bisulfate which is used as a pH lowering chemical for swimming pools.
In drinking water treatment, sodium bisulfite is often added after super chlorination, to reduce the residual chlorine before discharging to the service reservoir.