Sodium sulphite

Sodium sulphite

Disodium Sulfite; Sulfurous Acid Disodium Salt; Sodium Sulfite Anhydrous;

CAS 7757-83-7

Chemical Formula Na₂SO₃

Molecular Weight 126.04 g/mol

Sodium sulfite is a white crystalline powder. It is a salt formed from sulfurous acid and is typically used as a reducing agent in various chemical processes. The compound is hygroscopic, meaning it can absorb moisture from the air.The compound also serves as an antioxidant, helping to maintain the color and flavor of certain products.

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Industrial Uses

1. Food & Beverage

  • Preservative: Sodium sulphite is widely used as a preservative to prevent spoilage and maintain the freshness of dried fruits, vegetables, and processed foods by inhibiting microbial growth.
  • Antioxidant: It helps to prevent the oxidation of food products, preserving color and flavor in items like juices and wines. • Browning Inhibitor: Sodium sulphite is used to prevent browning in cut fruits and vegetables, helping to maintain their visual appeal.

2. Pharmaceuticals

  • Reducing Agent: It is used in the production of certain pharmaceuticals as a reducing agent in chemical reactions.
  • Preservative: Sodium sulphite can be included in pharmaceutical formulations to prevent oxidation and enhance the stability of active ingredients.
  • Antioxidant: It helps in maintaining the integrity of sensitive compounds in various drug formulations.

3. Personal Care

  • Preservative: Sodium sulphite is often used in cosmetic formulations to prevent microbial contamination and enhance shelf life.
  • pH Adjuster: It can help in adjusting the pH levels of personal care products, contributing to product stability and effectiveness.

4. Chemical Synthesis

  • Bleaching Agent: In the textile and paper industries, sodium sulphite is used as a bleaching agent to lighten colors and improve brightness.
  • Water Treatment: It acts as a dechlorinating agent in water treatment processes, helping to remove chlorine from drinking water and wastewater.
  • Reducing Agent: Sodium sulphite is utilized in various chemical processes as a reducing agent to facilitate reactions.

5. Flavors & Fragrances

  • Stabilizer: Sodium sulphite can be used as a stabilizer in flavor and fragrance formulations, helping to maintain the quality and potency of the ingredients.
  • Preservative: It helps preserve the freshness and effectiveness of flavor and fragrance compounds, ensuring a longer shelf life.

Specifications

Assay ≥ 98%
Appearance White crystalline powder
Odor Odorless
Boiling Point Decomposes before boiling
Melting Point 500°C (anhydrous form)
Density 2.63 g/cm³ (anhydrous)
Solubility Soluble in water (14.5 g/100 mL at 20°C)
Viscosity Not applicable (solid form)
Flash Point Not flammable

Hazard Symbols

Irritants/Sensitisers/Other Hazards

FAQs

1. What is the current price Sodium sulphite in India ?
The price of Sodium sulphite can vary based on factors such as purity, quantity, etc. For the most accurate and competitive pricing, please contact us at +91-22-4343 2121 directly for a customized quote tailored to your needs.

2. Where can I buy Sodium sulphite in India ?
You can purchase Sodium sulphite from MULTICHEM, a leading importer with a reputation for quality and reliability. We provide convenient options for bulk orders and direct shipments across India. For more details on how to place an order, please visit our website or contact our sales team.

3. What is the minimum order quantity (MOQ) for Sodium sulphite?
Our minimum order quantity (MOQ) for Sodium sulphite is designed to cater to both small-scale and large-scale needs. The MOQ depends on the packing size of the product which could range from 25 kg to 250kg.

4. How can I ensure the quality of Sodium sulphite supplied by Multichem ?
We adhere to stringent quality control processes to ensure that our products meet the highest standards of purity and effectiveness. They undergo rigorous testing and quality checks to guarantee that they comply with industry specifications. We provide a Certificate of Analysis (CoA) with every shipment to ensure transparency and quality assurance.