Sodium Bisulphite

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Sodium Bisulphite

For making sure about the safety of the products during handling, transporting and warehousing, we make use of quality packaging material. And, this task is accomplished by our deft professionals. We make sure that our inputs are in conformation with the international quality standards and free from all sorts of impurities in order to offer quality-approved products to the buyers.


  • Product Name :  Sodium Bisulfite
  • Packing :  50 Kgs HDPE Bag with inner liner
  • Description :  White to Off white Powder
  • Purity As SO2 : 60% to 62 %
  • Insoluble Matter : 0.05 % Max.
  • PH : 4 to 5.5

Industrial Uses 

Sodium bisulfite is a common reducing agent in the chemical industry, as it readily reacts with dissolved oxygen : 2NaHSO3 + O2 → 2 NaHSO4

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. 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.

In wastewater treatment, sodium bisulfite is often added following disinfection with chlorine prior to discharging the effluent to the receiving water. Residual chlorine can have a negative impact on aquatic life.

In Steam Boilers, sodium bisulfite has been a reliable oxygen scavenger in boiler feedwater for approximately 60 years. This compound is characterized as having fast reaction times, low use-cost, years of proven performance, availability.