CHEMICAL PRODUCTS

Sodium Metabisulfite

GreenChem Industries is a supplier and distributor of Sodium Metabisulfite (CAS 7681-57-4) for industrial buyers. Request a bulk quote, SDS, or TDS, or call (561) 659-2236 or email [email protected].

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Sodium Metabisulfite
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PRODUCT OVERVIEW

DESCRIPTION

Sodium metabisulfite, a chemical compound with the formula Na2S2O5, is commonly used in various industries due to its antioxidant, disinfectant, and preservative properties. It appears as white or yellowish-white crystals or powder with a faint sulfur dioxide-like odor. This compound consists of two sodium ions and one metabisulfite ion, forming an ionic structure that makes it effective in preserving food and pharmaceutical products by preventing oxidation and microbial growth. In addition to its preservative and disinfectant uses, sodium metabisulfite is also known for its potential to cause allergic reactions in individuals sensitive to sulfites. Its versatility extends to several applications, including water treatment, where it acts as a reducing agent, and in the paper and textile industries as a bleaching agent. Despite its benefits, care must be taken when handling this compound due to its reactivity and the possibility of adverse health effects.

IDENTIFIERS

Chemical Name

Sodium Metabisulfite

CAS #

7681-57-4

EC #

231-673-0

Molecular Formula

Na2S2O5

InChI Key

ZBVPOSMABOMSMZ-UHFFFAOYSA-N

Synonyms

Sodium disulfite; Sodium pyrosulfite; disodium pentaoxodisulfate

CLASSIFICATIONS

Product Group 1

Sulfates, Additives

Product Group 2

Pharma, Food & Nutrition, HI&I

PROPERTIES

Boiling Point

Decomposes

Density

1.4 g/cm³

Melting Point

150 °C (decomp)

pH

3.5 to 5.0 (20 °C, 5%)

Solubility

Soluble in glycerol, insoluble in water

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FREQUENTLY ASKED QUESTIONS

Does GreenChem Industries supply Sodium Metabisulfite in bulk?

Yes. GreenChem Industries distributes Sodium Metabisulfite for industrial buyers. Request pricing and packaging options for drums, totes/IBCs, bulk/tank, bags, pails, or ISO tanks.

What is the CAS number for Sodium Metabisulfite?

The CAS registry number for Sodium Metabisulfite is 7681-57-4.

How do I request an SDS or TDS for Sodium Metabisulfite?

Use the document request form on this page, or contact sales at (561) 659-2236 / [email protected]. SDS and technical documents are provided for qualified commercial inquiries.

What packaging options are available?

Depending on the product and region, GreenChem can quote drums, totes/IBCs, bulk/tank, bags, pails, and ISO tanks. Ask your specialist for current pack sizes and lead times.

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