Description
Industrial/Technical Grade
Sodium Bisulfite is widely used in various industries.
1. LEATHER INDUSTRY The leather industry uses sodium
bisulfite to make finished leather products softer, wearable,
waterproof and longer lasting.
2. WATER TRETMENT Sodium bisulfite plays an important
part in the treatment of water, wastewater and waste as a
strong reducing agent. The chemical removal of dissolved oxygen by
chemically treating with sodium bisulfite reduces the corrosion
rate in steel material. Sodium bisulfite also assists in the
dechlorination of drinking water as well as in the chlorine removal
in waste waters. Another treatment method that utilizes sodium
bisulfite's effectiveness is in the reduction of chromium. All
three reactions allow for chemical removal to be controlled by the
amount of sodium bisulfite that is reacted with the solution.
3. Medicine Industry for manufacturing semifinished
product of metamizole sodium and aminopyrine.
4. Rubber Industry used as coagulative agent.
5. Textiles Industry Sodium bisulfite is an
important component in the preparation of dye intermediates. There
are also areas of substantial utilization in the processing of wool
as well as for the antichlor treatment required of many textile
products.
6. Chemical Industry Sodium bisulfite is a
common reducing agent in the chemical industries. In biochemical
engineering applications, it is helpful to maintain anaerobic
conditions within a reactor.
7. Photography Industry Sodium bisulfite serves a
dual purpose in photographic industry. It is responsible for
preserving the thiosulfite in the fixing baths and scavenging the
dissolved oxygen in the developer solution.
8. Water pipes Sodium bisulfite is also used in
the process of purifying water, cleaning water pipes and reverse
osmosis membranes in desalinization equipment as it is an
antibacterial. It is usually added to large piping systems to
prevent oxidative corrosion.
Food Grade
Food Grade sodium bisulfite is used to preserve and extend the
shelf life of manufactured food items. As a food additive, the
chemical helps to prevent the oxidation of fresh-cut produce.
- It is used to preserve color and inhibit bacterial growth on
fruits, vegetables, some seafood and wine.
- Sodium bisulfite 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.
- Sodium bisulfite is used in beverages, fillings, sauces,
dressings.
- Soft drink manufacturers use the pH-lowering properties of
sodium bisulfite to reduce the tartness of many beverages.
- 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.
- Sodium bisulfite acts as bleacher (Sweet, pastry, water-soaked
bamboo slices, etc.) loosening agent (bread, biscuit, etc.)
corrosion resistance antiseptic (fruit juice, can, brewing, grain
storage, etc.); antioxygen antistaling agent (acupuncture needle
sprout, sea food, garden stuff, etc.)
