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Catalog Number:
00081
CAS Number:
7775-14-6
Sodium hydrosulfite, anhydrous
Purity:
≥ 89% (assay)
Synonym(s):
Sodium dithionite
Hazmat
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Product Information

Sodium hydrosulfite, anhydrous, is a versatile reducing agent widely utilized in various industrial applications, particularly in the textile and paper industries. Known for its effectiveness in bleaching and decolorizing processes, it serves as a crucial component in the production of dyes and pigments, enabling vibrant color development while maintaining the integrity of the materials. Additionally, sodium hydrosulfite is employed in the photographic industry for developing and fixing images, showcasing its importance in both artistic and commercial photography.

This compound is also recognized for its role in the food industry, where it acts as a preservative and antioxidant, helping to maintain the freshness and quality of various products. Its unique ability to reduce sulfites makes it a valuable asset in the formulation of certain chemicals and pharmaceuticals. With its strong reducing properties and broad applicability, sodium hydrosulfite, anhydrous, stands out as an essential chemical for professionals seeking reliable and efficient solutions in their respective fields.

Synonyms
Sodium dithionite
CAS Number
7775-14-6
Purity
≥ 89% (assay)
Molecular Formula
Na2S2O4
Molecular Weight
174.11
MDL Number
MFCD00011640
Melting Point
52°C
Appearance
White, free-flowing powder
Conditions
Store at RT
General Information
Synonyms
Sodium dithionite
CAS Number
7775-14-6
Purity
≥ 89% (assay)
Molecular Formula
Na2S2O4
Molecular Weight
174.11
MDL Number
MFCD00011640
Melting Point
52°C
Appearance
White, free-flowing powder
Conditions
Store at RT
Properties
Additional property information coming soon!
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Safety and Regulations
Hazmat
Yes
Antibiotic
No
DEA-regulated
No
Warnings
-
Applications

Sodium hydrosulfite, anhydrous is widely utilized in research focused on:

  • Textile Industry: It serves as a reducing agent in the dyeing process, helping to achieve vibrant colors and improve fabric quality by removing excess dye.
  • Photography: This compound is used in developing photographic films and papers, where it acts as a reducing agent to convert exposed silver halides into metallic silver.
  • Food Processing: It acts as a preservative and bleaching agent in food products, particularly in dried fruits, enhancing appearance and extending shelf life.
  • Water Treatment: Sodium hydrosulfite is employed to remove chlorine from water, making it safer for consumption and improving the effectiveness of other treatment processes.
  • Chemical Synthesis: It is used in various organic synthesis reactions, particularly in the reduction of nitro compounds to amines, which are essential in pharmaceuticals and agrochemicals.

Citations