SODIUM BISULPHITE

Sodium Bisulfite Solution 40 % is a clear, yellowish liquid with a sulfur dioxide odor. It is use as DE chlorination in municipal wastewater, pulp & paper, power, and

textile water treatment plants , Oxygen scavenger , Boiler water treatment Preservative in photo developer process , Food additive , Flue gas desulfurization Mild reducing agent in organic synthesis , Efficiently remove traces or excess amounts of bromine, iodine, osmate esters, chromium trioxide, and potassium permanganate.

Solution undergoes oxidation on standing in air and should be used up within
a short time. At temperatures below 10 °C Sodium Metabisulphite may crystallize

Food: Preserving foodstuffs, aid with the production of starch, for ensiling green fodder.
Treatment of process water: Removal of excess chlorine, in special cases removal of oxygen.
Treatment of waste water: e.g. removal of excess chlorine in the neutralization of cyanide, neutralization of chromic acid. Chemical and pharmaceutical industry: As reducing agent, for purifying and isolating aldehydes and ketones. Destroyingwaste bromine.
Textile industry: Cleaning bleaching wool, jute and other vegetable fibers. For reduction in the dye works.

Leather industry: Solubilizing tanning extracts.

Paper and pulp industry: Bleaching ground wood.