Sodium metabisulphite, 98%

Name: Sodium metabisulphite, 98%
Brand: Vaqora Chemicals
SKU: VQ-000976

About Sodium metabisulphite, 98%

Vaqora Chemicals supplies Sodium metabisulphite in Extra Pure grade, a synthetic reagent registered under CAS number 7681-57-4 at a purity of 98%. The compound has the formula Na2O5S2, corresponding to a molecular weight of 190.11 g/mol. Alternative names: Sodium disulfite and Sodium pyrosulfite.

It is supplied as a powder or solid or crystals or crystalline chunk, white to off-white, pass. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Danger” with 2 hazard statements. Review the Safety Data Sheet before use.

Typical applications include organic synthesis, reaction development, medicinal chemistry and food and flavour applications. Typical end-use sectors are academic and industrial research and food and beverage processing.

Available in 500 g, 1 kg, 5 kg and 25 kg packs, Sodium metabisulphite is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Organic synthesis
Reaction development
Medicinal chemistry
Food & flavour applications

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Sodium metabisulphite, 98%
Catalogue No.	VQ-000976
CAS Number	7681-57-4
Molecular formula	Na₂O₅S₂
Molecular weight	190.11 g/mol
Exact mass	189.8983
Grade	Extra Pure
Purity / assay	98%
HSN code	28321090
InChIKey	HRZFUMHJMZEROT-UHFFFAOYSA-L
SMILES	[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]
PubChem CID	656671

Physical properties
Physical form	Crystalline
Appearance	Powder or solid or crystals or crystalline chunk, white to off-white, pass
H-bond donors / acceptors	0 / 6
TPSA	125 Å²
Synonyms	Sodium disulfite, Sodium pyrosulfite, Sodium metabisulfite, Disodium pyrosulfite, Natrii disulfis, Campden Tablets, Disodium metabisulfite, Natrium pyrosulfit, sodium pyrosulphite, Sodium bisulfite anhydrous, Natrium metabisulfurosum, Sodium pyrosulfite (Na2S2O5)

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H318Causes serious eye damage

Precautionary statements: P264, P264 + P265, P270, P280, P301 + P317, P305 + P354 + P338, P317, P330, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 7681-57-4

Reference Standard

Sodium Metabisulfite

CAS: 7681-57-4
Formula: Na₂O₅S₂
MW: 190.11 g/mol

In stock

EP/Ph. Eur.

Sodium Metabisulfite, EP/Ph. Eur.

CAS: 7681-57-4
Formula: Na₂O₅S₂
MW: 190.11 g/mol

VQ-047033

Food Grade

Sodium Metabisulfite, food grade (FCC)

CAS: 7681-57-4
Formula: Na₂O₅S₂
MW: 190.11 g/mol

VQ-045591

IP/BP/USP/EP/Ph. Eur.…

Sodium Metabisulfite, IP/BP/USP/EP/Ph. Eur., ACS, AR

CAS: 7681-57-4
Formula: Na₂O₅S₂
MW: 190.11 g/mol

VQ-047185

LR / Food Grade

Sodium Metabisulfite, LR, food grade (FCC)

CAS: 7681-57-4
Formula: Na₂O₅S₂
MW: 190.11 g/mol

VQ-047186

AR

Sodium metabisulphite, GR 98%+

CAS: 7681-57-4
Formula: Na₂O₅S₂
MW: 190.11 g/mol

VQ-000977

Frequently asked questions

What is the CAS number of Sodium metabisulphite, 98%?

The CAS Registry Number of Sodium metabisulphite, 98% is 7681-57-4. It is also known as Sodium disulfite, Sodium pyrosulfite, Sodium metabisulfite.

What is the molecular formula and molecular weight of Sodium metabisulphite, 98%?

Sodium metabisulphite, 98% has the molecular formula Na2O5S2 and a molecular weight of 190.11 g/mol.

Which grade and pack sizes of Sodium metabisulphite, 98% can I order?

We supply Sodium metabisulphite, 98% in Extra Pure (98%) grade, in 500 g, 1 kg, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Sodium metabisulphite, 98%?

Yes. Every lot of Sodium metabisulphite, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Sodium metabisulphite, 98% be shipped internationally?

Yes. Sodium metabisulphite, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.