dvr Sodium Sulphite (sulfite) with Catalyst Liq

Sodium sulfite solution with the chemical formula Na2SO3

It is primarily used in pulp and paper industry. It is used in water treatment as an oxygen scavenger agent, in the photographic industry to protect developer solutions from oxidation, in textile industry as a bleaching, as a desulfurising and as a dechlorinating agent and in leather trade for the sulfitisation of tanning extracts. It is used in chemical manufacturing as a sulfonation and sulfomethylation agent. It is used in the production of rubber chemicals, sulfur dyes and other chemical compounds. It is used in other applications including ore flotation, oil recovery, food preservative, making dyes, and detergent.


White, free flowing crystalline Odorless powder

Technical Specifications:

Test Results


Molecular Weight  126.05
Bulk Density  1.3 %u2013 1.5 kg/dm3
Sodium Sulfite, wt % 99min
Sodium Sulfate, wt %  Max. 1
Moisture, % 
Insolubles, %  0.03max
Sodium Chloride, ppm  50max
Iron (Fe), ppm 3max
Heavy Metals, (Pb) ppm  10max
Selenium, ppm 2max
Arsenic, ppm 1max
PH of 5% Solution (@ 25° C) 9.5-10.6
Ca/Mg NH40H Inso. % 0.50max
Alk. as Na2C03 % w/w 0.15max
Water insolubles (other than Iron compounds) % by wt. Max. 0.25

Note: This article uses material from the