Potassium Sulfite | 10117-38-1

Cas No :

10117-38-1

Form :

Powder

Molecular Weight :

178.26 G/Mol

Molecular Formula :

K2O3S

Boiling Point :

1060 °C

Melting Point :

672 °C

Flash Point :

350 °C

Solubility :

Soluble In Water

Description :

Overview of Potassium Sulfite

 

Potassium Sulfite is an inorganic salt that is used to act as an antioxidant, preservative, and reducing ingredient in many chemical and pharmaceutical processes. It is renowned for its ability to scavenge oxygen and to stop the oxidation process. Potassium Sulfite can be extensively used for preserving wine, food preservation in pharmaceutical formulations, and as a chemical intermediary.

The compound is an oblong-shaped white or yellowish powder, or granules that have a distinctive sulfurous smell. The sulfite anion it contains provides antioxidants and antimicrobial qualities that are useful for preservation as well as chemical processes.

Similar products are Sodium Sulfite, Sodium Metabisulfite, Potassium Metabisulfite, as well as other sulfite-related substances that are used in food processing and industrial uses.

 

 

Applications of Potassium Sulfite

 

Food & Beverage Industry

 

  • It is used as an antioxidant in foods
  • It is used in the production of beer and wine
  • Helps to stop the browning of fruit and other vegetables.
  • Applied in dried fruit preservation
  • used in the preservation of seafood
  • Used to control the growth of microbial species
  • Utilized in the production of juices and beverages
  • Used to describe bakery items

 

Pharmaceutical & Chemical

 

  • It is used for antioxidant purposes in formulations for pharmaceuticals.
  • It is used to safeguard oxidation-sensitive APIs
  • Utilized as a reducing agent in chemical syntheses
  • It is used in the production of various sulfur compounds
  • It is used in analytical chemistry applications
  • Used in developing photographic solutions
  • Utilized in the bleaching process of textiles
  • It is used in leather tanning processes

 

Water Treatment & Industrial

 

  • Utilized as an oxygen scavenger for the treatment of boiler water
  • Used in the treatment of wastewater
  • used in pulping as well as bleaching paper
  • It is used in textile processing
  • Utilized for mining activities
  • Applied in electroplating processes

 

 

Safety & Handling Guidelines

 

  • Releases sulfur dioxide upon acidification--respiratory irritant
  • Beware of inhaling dust and products of decomposition.
  • Wear goggles, gloves, and protective clothes
  • Be sure to use it in well-ventilated locations
  • Storage in securely sealed containers, away from acid
  • Avoid the strong oxygenizing agents
  • Protects against oxidation from the effects of air exposure
  • Be sure to follow COA and MSDS directions completely

 

 

Where to Buy Potassium Sulfite?

 

Potassium Sulfite Manufacturer

 

ChemicalBull supplies high-purity Potassium Sulfite, meeting food-grade, pharmaceutical, and industrial quality standards.

 

Potassium Sulfite Supplier & Distributor

 

  • Available in bulk packing for industrial and food use
  • Multiple grades (food-grade, technical, pharmaceutical)
  • COA, MSDS, and regulatory documents provided

 

 

MSDS

 

Includes detailed safety instructions, sulfur dioxide release warnings, and handling protocols.

 

 

Frequently Asked Questions (FAQs)

 

  1. What is Potassium Sulfite formula?

    Molecular formula: K₂SO₃ with molecular weight 158.26 g/mol.

  2. What is Potassium Sulfite solubility?

    Highly soluble in water (approximately 110 g/100 mL at 20°C); slightly soluble in alcohol.

  3. What is Potassium Sulfite used for?

    Used as a food preservative and antioxidant, oxygen scavenger in water treatment, reducing agent in synthesis, and in wine/beer production.