Key Documents

View All Documentation

Potassium nitrite

Name: Potassium nitrite
Brand: SIGALD
Price: 141.1 USD
Availability: InStock

ACS reagent, ≥96.0%

Select a Size

Change View

Size/SKU	Availability	Price
100 g	Available to ship TODAY	$166.00 $141.10
500 g	Estimated to ship onOctober 23, 2026fromMILWAUKEE	$591.00

About This Item

Linear Formula:

KNO₂

CAS Number:

7758-09-0

Molecular Weight:

85.10

NACRES:

NB.24

PubChem Substance ID:

329753627

UNSPSC Code:

12352302

EC Number:

231-832-4

MDL number:

MFCD00011408

Assay:

≥96.0%

Grade:

ACS reagent

Form:

powder or crystals

Solubility:

water: soluble (718.8 g/l at 25 °C (77 °F))

$141.10

List Price$166.00Save 15%

Web-Only Promotion

Available to ship TODAYDetails

One Time Order

Request a Custom Order

Subscriptions are currently unavailable.

Technical Service

Need help? Our team of experienced scientists is here for you.

Let Us Assist

Properties

grade

ACS reagent

Quality Segment

200

assay

≥96.0%

form

powder or crystals

impurities

≤0.01% insolubles

pH

7-10 (25 °C, 50 g/L)

mp

350 °C (dec.) (lit.)

solubility

water: soluble (718.8 g/l at 25 °C (77 °F))

anion traces

chloride (Cl^-): ≤0.03%, sulfate (SO₄^2-): ≤0.01%

cation traces

Ca: ≤0.005%, Fe: ≤0.001%, Mg: ≤0.002%, Na: ≤0.5%, heavy metals (as Pb): ≤0.001%

SMILES string

[K+].[O-]N=O

InChI

1S/K.HNO2/c;2-1-3/h;(H,2,3)/q+1;/p-1

InChI key

BXNHTSHTPBPRFX-UHFFFAOYSA-M

Description

General description

Potassium nitrite is an ionic salt that can be used for a variety of chemical reactions, including configuration inversion, substitution of amines via disulfonylamides, nucleophilic aromatic nitration, diazotization, nitrosation, and nucleoside nitration.

Application

Potassium nitrite can be used as:

A nucleophile for the nitrosation of diclofenac and diphenylamine into their corresponding N-nitroso derivatives.
A nitrous acid source for the diazotization of arylamines.

Compare Similar Items

View Full Comparison

Show Differences

1 of 1

This Item	12654	237213
Sigma-Aldrich 310484 Potassium nitrite	Sigma-Aldrich 12654 Potassium nitrite	Sigma-Aldrich 237213 Sodium nitrite
description ACS reagent, ≥96.0%	description meets analytical specification of FCC, 97-100.5%	description ACS reagent, ≥97.0%
form powder or crystals	form crystals	form powder or crystals
assay ≥96.0%	assay 97-100.5%	assay ≥97.0%
solubility water: soluble (718.8 g/l at 25 °C (77 °F))	solubility water: soluble 0.35 part, alcohol: slightly soluble	solubility -
Quality Level 200	Quality Level 200	Quality Level 200
grade ACS reagent	grade -	grade ACS reagent
pH 7-10 (25 °C, 50 g/L)	pH -	pH -

Still not finding the right product?

Explore all of our products under Potassium nitrite

Pictograms

GHS03,GHS06,GHS09

Signal Word

Danger

Hazard Codes

H272,H301,H400

Precautionary Statements

P210 - P220 - P264 - P273 - P280 - P301 + P310

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Acute 1 - Ox. Sol. 2

Storage Class

5.1B - Oxidizing hazardous materials

WGK

WGK 2

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.