Sodium Bisulfite 40% Solution

Sodium Bisulfite 40% Solution (NaHSO3) is a pale-yellow liquid.

Our on purpose SBS is derived from our ultra pure SO2  that allows for a narrow specification and various solutions. Because it is produced on demand we have consistent and reliable supply. Do you have a specific requirement? Contact us to discuss your needs!


  1. Dechlorination in municipal wastewater, pulp & paper, power, and industrial water treatment plants
  2. Oxygen scavenger
  3. Boiler water treatment
  4. Preservative in photo developer process
  5. Food additive
  6. Flue gas desulfurization
  7. Mild reducing agent in organic synthesis
  8.  Cyanide destruction and leaching in the mining industry (Manganese, Gold, Cobalt, Iodine, Nickel and Silver)
  9. Efficiently remove traces or excess amounts of bromine, iodine, osmate esters, chromium trioxide, and potassium permanganate
  10. Surfactant production

Chemical Composition

Sodium Bisulfite, wt% 38.0 - 42.0
Sodium Sulfate, wt% ≤ 3.5%
Iron, (Fe ppm) ≤ 15
pH 3.6 – 4.6

Product meets FCC, ACS and/or USP specifications. Material is also Kosher and NSF certified.

Physical Properties

Specific Gravity @ 25°C 1.310 – 1.370
Density, lbs/gal @ 25°C 10.9 - 11.3

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