Sodium Metabisulphite

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Sodium Metabisulphite Specification

Molecular Weight
190.1 g/mol

Boiling point
Decomposes before boiling

Poisonous
Yes

Other Names
Disodium pyrosulphite, Sodium pyrosulphite

Density
1.48 Gram per cubic centimeter(g/cm3)

Purity
96% Min, up to 99% depending on grade

Smell
Sulphurous, strong odor

Molecular Formula
Na2S2O5

Ph Level
4.0 - 4.6 (1% solution)

Solubility
Soluble in water, glycerin, and slightly soluble in alcohol

Structural Formula
Na2S2O5

Shape
Crystalline powder

Storage
Keep container tightly closed and store in a cool, dry, and well-ventilated area. Protect from moisture and direct sunlight.

Form
Solid powder / crystalline solid

HS Code
28321010

Melting Point
170 C (decomposes)

Taste
Acrid, saline

Classification
Sulphite Compound

Chemical Name
Sodium Metabisulphite

CAS No
7681-57-4

EINECS No
231-673-0

Grade
Food Grade / Industrial Grade

Standard
Conforms to GB1893-2008 or as per customer requirement

Type
Inorganic Salt

Usage
Used as an antioxidant, preservative, and disinfectant, and as a reducing agent in various industrial processes

Main Material
Sodium hydro sulphite (mainly derived from sodium bisulfite)

Application
Photographic, water treatment, food preservatives, textile, and chemical industries

Sodium Metabisulphite Trade Information

Main Export Market(s)
South America, Middle East, Africa

About Sodium Metabisulphite

Sodium Metabisulphite, a venerable inorganic salt with the ace molecular structure Na2S2O5, is a select compound marvelously recognized for its versatility. Appearing as a white to slight yellow crystalline powder, its ephemeral freshness is maintained through stable packaging in 25 kg or 50 kg plastic woven bags. In demand across industries, this substance excels as an antioxidant, preservative, disinfectant, and reducing agent. Its purity reaches up to 99%, conforming to stringent standards. Handle with care due to its strong, sulphurous odor and potential toxicity, ensuring its shelf life of 12 months.

Direction Of Use and Application Type

Sodium Metabisulphite is primarily used as an antioxidant and preservative in food processing, and as a disinfectant or reducing agent in industrial processes. Directions involve carefully dissolving in water or suitable solvents, ensuring protective measures are in place due to its acrid taste and strong odor. The use type ranges from food-grade to industrial-grade, making it invaluable for water treatment, chemicals manufacturing, textiles, and photographic processing.

Payment, Delivery, and Packaging Details

For Sodium Metabisulphite, list price arrangements are straightforward with options for advance payments. Handover of goods is efficient, as stock is ready for dispatch. Standard packaging includes durable 25 kg or 50 kg plastic woven bags with inner PE liners, tailored to customer requirements. Delivery times are prompt, ensuring the product reaches users swiftly, with packaging and logistics designed to maintain freshness and stability throughout transit.

FAQs of Sodium Metabisulphite:

Q: How should Sodium Metabisulphite be stored to maintain its shelf life?

A: Sodium Metabisulphite should be stored in a tightly closed container in a cool, dry, and well-ventilated area. It should be protected from moisture and direct sunlight to maintain its shelf life of 12 months.

Q: What is the main usage of Sodium Metabisulphite in industry?

A: Sodium Metabisulphite is extensively used as an antioxidant and preservative in food processing, and as a reducing agent and disinfectant in water treatment, chemicals, textiles, and photographic industries.

Q: Where can I purchase Sodium Metabisulphite with ready stock and custom packaging in India?

A: Sodium Metabisulphite is available from reputed dealers, exporters, manufacturers, producers, retailers, and suppliers in India with options for ready stock and customizable packaging to suit customer requirements.

Q: When does Sodium Metabisulphite decompose and what are the implications?

A: Sodium Metabisulphite decomposes above 150C, releasing SO2 gas, especially under acidic conditions. Care must be taken during handling and processing to mitigate safety concerns and maintain product integrity.

Q: What benefits does Sodium Metabisulphite offer as a food preservative?

A: As a food preservative, Sodium Metabisulphite helps prevent spoilage and microbial growth, prolongs shelf life, and maintains the quality of food products due to its antioxidant and antimicrobial properties.

Q: How is Sodium Metabisulphite packaged for delivery?

A: The product is packaged in 25 kg or 50 kg plastic woven bags with an inner PE liner, ensuring protection against moisture and contamination during storage and transit. Custom packaging solutions are available based on customer needs.

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