Sodium Sulfite 15% Solution

Sodium sulfite is a 15% solution of sodium sulfite with the chemical formula Na2SO3.

Our on-purpose Sodium Sulfite 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 textile water treatment plants
  2. Boiler water treatment
  3. Oxygen scavenger
  4. Flue gas desulfurization
  5. Chemical manufacturing in the sulfonation process

Chemical Composition

Sodium Sulfite, wt% 15 +/- 1
Sodium Sulfate, wt% 1.0 max
pH 8.0 – 10.0

Physical Properties

Specific Gravity @ 25°C 1.13 – 1.20
Density, lbs/gal @ 25°C 9.4 – 10.0

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