is a soluble sodiumsaltof sulfurous acid(sulfite) with the chemical formulaNa2SO3.It is a white crystal powder or granule that tastes salty with sulphur odor,
1. Chemical Analysis
≥ 97.0 %
Water insoluble matter
Pulp and paper industry
Lignin removal agent
Oxygen scavenger agent.
To protect developer solutions from oxidation and (as hypo clear solution) to wash fixer (sodium thiosulfate) from film and photo-paper emulsions.
Bleaching, desulfurizing and dechlorinating agent
Sulfonation and sulfomethylation agent. It is used in the production of sodium thiosulfate.
The sulfitization of tanning extracts
lfroth flotation of ores
lIt is used in the purification of TNT for military use.
3. Transportation Information:
Not a DOT controlled material
4. Handing & Storage
(1).Precautions:Do not ingest. Do not breathe dust. Wear suitable protective clothing. If ingested, seek medical advice immediately and show the container or the label. Keep away from incompatibles such as oxidizing agents, combustible materials, organic materials, acids.
(2).Storage: Air sensitive. Moisture sensitive. Keep container tightly closed. Keep container in a cool, well-ventilated area.