Potassium nitrite, GR 98%+

Name: Potassium nitrite, GR 98%+
Brand: Vaqora Chemicals
SKU: VQ-014057

About Potassium nitrite, GR 98%+

Potassium nitrite is an alkali metal compound (AR grade) carrying the CAS registry number 7758-09-0, specified at ≥98% purity. Its molecular formula is KNO2 and its molecular weight is 85.1 g/mol. Alternative names: Nitrous acid, potassium salt and Potassium nitrite (1:1).

The material typically appears as a white powder or crystalline powder. Key physical data: a melting point of 350 °C and a density of 1.92 g/cm3 at 20 °C. 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 corrosion inhibition, oxidation reactions and enzyme inhibition studies. Buyers come mainly from academic and industrial research.

Standard pack sizes are 250 g, 1 kg, 5 kg and 25 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Corrosion inhibition
Oxidation reactions
Enzyme inhibition studies

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Potassium nitrite, GR 98%+
Catalogue No.	VQ-014057
CAS Number	7758-09-0
IUPAC name	potassium nitrite
Molecular formula	KNO₂
Molecular weight	85.1 g/mol
Exact mass	84.9566
Grade	AR
Purity / assay	≥98%
HSN code	28341090
InChIKey	BXNHTSHTPBPRFX-UHFFFAOYSA-M
SMILES	N(=O)[O-].[K+]
PubChem CID	516910

Physical properties
Physical form	Powder
Appearance	White powder or crystalline powder
Melting point	350 °C
Density	1.92 g/cm3 at 20 °C
H-bond donors / acceptors	0 / 3
TPSA	52.5 Å²
UN number	UN 1488
Synonyms	Nitrous acid, potassium salt, Potassium nitrite (1:1), Nitrous acid potassium salt (1:1), INS NO.249, INS-249, Nitrous acid potassium salt, Nitrous acid, potassium salt (1:1), Potassium nitrite [UN1488] [Oxidizer], KNO2, Potassium nitrite (KNO2), Potassium nitrite, ACS grade

Safety & hazard information (GHS)

Oxidiser

Toxic

Environmental hazard

Signal word: Danger

Hazard statements

H272May intensify fire, oxidizer
H301Toxic if swallowed
H400Very toxic to aquatic life

Precautionary statements: P210, P220, P264, P270, P273, P280, P301 + P316, P321, P330, P370 + P378, P391, 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 7758-09-0

Extra Pure

Potassium nitrite, 98%

CAS: 7758-09-0
Formula: KNO₂
MW: 85.1 g/mol

VQ-014056

Frequently asked questions

What is the CAS number of Potassium nitrite, GR 98%+?

The CAS Registry Number of Potassium nitrite, GR 98%+ is 7758-09-0. It is also known as Nitrous acid, potassium salt, Potassium nitrite (1:1), Nitrous acid potassium salt (1:1).

What is the molecular formula and molecular weight of Potassium nitrite, GR 98%+?

Potassium nitrite, GR 98%+ has the molecular formula KNO2 and a molecular weight of 85.1 g/mol. Its IUPAC name is potassium nitrite.

Which grade and pack sizes of Potassium nitrite, GR 98%+ can I order?

We supply Potassium nitrite, GR 98%+ in AR (≥98%) grade, in 250 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 Potassium nitrite, GR 98%+?

Yes. Every lot of Potassium nitrite, GR 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 Potassium nitrite, GR 98%+ be shipped internationally?

Yes. Potassium nitrite, GR 98%+ is classified as hazardous (UN 1488), 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.