Potassium metabisulphite, food grade (FCC)

Name: Potassium metabisulphite, food grade (FCC)
Brand: Vaqora Chemicals
SKU: VQ-046915

About Potassium metabisulphite, food grade (FCC)

Potassium metabisulphite (CAS 16731-55-8) is an alkali metal compound offered by Vaqora Chemicals (Food Grade grade). With the molecular formula K2O5S2, it has a molar mass of 222.33 g/mol. It is also known as Potassium disulfite or Dipotassium pyrosulfite.

Store in a tightly closed container in a cool, dry and well-ventilated place. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

It is commonly used for food and flavour applications and materials research. Our customers for this product work in academic and industrial research.

Vaqora Chemicals supplies Potassium metabisulphite in 500 g, 5 kg and 25 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request.

Typical applications

Food & flavour applications
Materials research

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Potassium metabisulphite, food grade (FCC)
Catalogue No.	VQ-046915
CAS Number	16731-55-8
Molecular formula	K₂O₅S₂
Molecular weight	222.33 g/mol
Exact mass	221.8461
Grade	Food Grade
HSN code	28322010
InChIKey	RWPGFSMJFRPDDP-UHFFFAOYSA-L
SMILES	[O-]S(=O)S(=O)(=O)[O-].[K+].[K+]
PubChem CID	28019

Physical properties
Physical form	Other
H-bond donors / acceptors	0 / 6
TPSA	125 Å²
Synonyms	Potassium disulfite, Dipotassium pyrosulfite, Dipotassium disulfite, Dipotassium metabisulfite, Potassium disulfite (K2S2O5), Potassium pentaoxodisulfate, Pyrosulfurous acid, dipotassium salt, Ins-224, Potassium metabisulfite (e 224), Potassium pyrosulfite, Disulfurous acid, potassium salt (1:2), Potassium metabisulfite [NF]

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H315Causes skin irritation
H318Causes serious eye damage
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P354 + P338, P317, P319, P321, P332 + P317, P362 + P364, P403 + P233, P405, 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 16731-55-8

Potassium metabisulphite, 95%

CAS: 16731-55-8
Formula: K₂O₅S₂
MW: 222.33 g/mol

VQ-014048

BP/USP/EP/Ph. Eur. / …

Potassium metabisulphite, BP/USP/EP/Ph. Eur., AR, food grade (FCC)

CAS: 16731-55-8
Formula: K₂O₅S₂
MW: 222.33 g/mol

VQ-047233

AR

Potassium metabisulphite, GR 98%+

CAS: 16731-55-8
Formula: K₂O₅S₂
MW: 222.33 g/mol

VQ-014049

Frequently asked questions

What is the CAS number of Potassium metabisulphite, food grade (FCC)?

The CAS Registry Number of Potassium metabisulphite, food grade (FCC) is 16731-55-8. It is also known as Potassium disulfite, Dipotassium pyrosulfite, Dipotassium disulfite.

What is the molecular formula and molecular weight of Potassium metabisulphite, food grade (FCC)?

Potassium metabisulphite, food grade (FCC) has the molecular formula K2O5S2 and a molecular weight of 222.33 g/mol.

Which grade and pack sizes of Potassium metabisulphite, food grade (FCC) can I order?

We supply Potassium metabisulphite, food grade (FCC) in Food Grade grade, in 500 g, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Potassium metabisulphite, food grade (FCC)?

Yes. Every lot of Potassium metabisulphite, food grade (FCC) 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 Potassium metabisulphite, food grade (FCC) be shipped internationally?

Yes. Potassium metabisulphite, food grade (FCC) 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.