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Catalog Number:
01629
CAS Number:
7681-57-4
Sodium metabisulfite
Grade:
ACS reagent
Purity:
≥ 97.0% (Titration)
Synonym(s):
Sodium disulfite, Sodium pyrosulfite
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Product Information

Sodium metabisulfite is a versatile chemical compound widely utilized across various industries due to its effective reducing and preserving properties. Commonly recognized by its synonyms such as sodium pyrosulfite and disodium disulfite, this compound serves as a powerful antioxidant and preservative in food and beverage applications, helping to maintain freshness and prevent spoilage. In the pharmaceutical industry, sodium metabisulfite is employed as a stabilizing agent in formulations, ensuring the efficacy and longevity of active ingredients. Additionally, it finds application in water treatment processes, where it acts as a dechlorinating agent, effectively removing chlorine from water supplies, thus enhancing water quality for various uses.

Researchers and industry professionals appreciate sodium metabisulfite for its unique ability to act as a reducing agent in chemical reactions, making it invaluable in laboratories for synthesizing various compounds. Its cost-effectiveness and ease of use further enhance its appeal, allowing for efficient scaling in industrial applications. With its broad range of uses, sodium metabisulfite stands out as an essential compound for those seeking reliable solutions in food preservation, pharmaceuticals, and environmental management.

Synonyms
Sodium disulfite, Sodium pyrosulfite
CAS Number
7681-57-4
Purity
≥ 97.0% (Titration)
Grade
ACS reagent
Molecular Formula
Na2S2O5
Molecular Weight
190.1
MDL Number
MFCD00167602
Density
1.48
Appearance
White crystalline powder
Conditions
Store at RT
General Information
Synonyms
Sodium disulfite, Sodium pyrosulfite
CAS Number
7681-57-4
Purity
≥ 97.0% (Titration)
Grade
ACS reagent
Molecular Formula
Na2S2O5
Molecular Weight
190.1
MDL Number
MFCD00167602
Density
1.48
Appearance
White crystalline powder
Conditions
Store at RT
Properties
Additional property information coming soon!
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Safety and Regulations
Hazmat
No
Antibiotic
No
DEA-regulated
No
Warnings
-
Applications

Sodium metabisulfite is widely utilized in research focused on:

  • Food Preservation: It acts as a preservative in various food products, preventing spoilage and maintaining freshness by inhibiting microbial growth.
  • Water Treatment: Commonly used in municipal and industrial water treatment processes, it helps to remove chlorine and other contaminants, ensuring safe drinking water.
  • Photography: In the photography industry, it serves as a developing agent, helping to stabilize photographic images and improve quality.
  • Pharmaceuticals: It is used as an antioxidant in pharmaceutical formulations, enhancing the stability and shelf life of medications.
  • Textile Industry: Employed in the textile industry for bleaching and as a reducing agent, it helps in dyeing processes, improving color retention and quality.

Citations