Bisulfite , or NaHSO3,is a chemical sanitizer, preservative and water
For these applications, sodium bisulfite is interchangeable with another
bisulfite i.e, Sodium Metabisulfite. Sodium bisulfite is available in a
granulated form that resembles table salt. Combining sodium bisulfite with
water produces sulfur dioxide gas, which kills unwanted microorganisms.
Sodium bisulfite chemical also prevents oxidation and as so, acts as a
bisulfite chemical is a common reducing agent in the chemical industries. In
biochemical engineering applications, it is helpful to maintain anaerobic
conditions within a reactor.
The rubber industry uses sodium bisulfite as a coagulative agent.
Additionally, the dye industry uses sodium bisulfite as a dechlorination
agent and cotton boiling agent for bleached cotton.
Further, the leather industry uses sodium bisulfite chemical to make
finished leather products more wearable, waterproof and longer lasting. In
addition to its use as a food preservative, the food industry also uses
sodium bisulfite as a bleaching agent. Additionally, metal workers use
sodium bisulfite to finish metals.
bisulfite is available in wine-making stores to sterilize and preserve
homemade wine. A small amount added to the pressed juice will kill any
alcohol-resistant mold that is on the fruit. It is used in almost all
commercial wines, to prevent oxidation and preserve flavor. In fruit
canning, sodium bisulfite is used to prevent browning (caused by oxidation)
and to kill microbes.
Bisulfite is used to preserve color and inhibit bacterial growth on fruits
and vegetables, some seafood and in wine.
It can preserve many of the qualities of fruits and vegetables, including
the color, taste and nutritional value. It is a common ingredient used in
the canning process; the sodium bisulfite protects the fruits and
vegetables from oxidizing and changing color.
It is also present in wines and beers, as it is used as both a sterilizer
and an antioxidant in the process of brewing beer or fermenting wine. The
chemical is also used in the process of purifying water, cleaning water
pipes and reverse osmosis membranes in desalinization equipment as it is an
Sodium Bisulfite in Other Uses
Bisulfite's acidic and preservative properties also make it an effective
substitute for Sodium Metabisulfite, a chemical which is used in traditional
darkroom photography. Also, sodium Bisulfite is used as a bleaching agent in
pulp and textile manufacture, as well as a reducing agent in
pharmaceuticals. It is also a known preservative in cosmetics.
Manufacturers use sodium bisulfite in foods, cleaning products and
pharmaceutical research. Common uses for sodium bisulfite include food
preservation and cleansing to sanitize equipment and kill mold, bacteria and
Small water treatment plants use sodium bisulfite to remove chlorine from
the waste-water discharged back into lakes and rivers.