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563218

Sigma-Aldrich

Sodium nitrite

99.999% trace metals basis

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Synonym(s):
Anti-Rust, Sodium nitrite (NaNO2 )
Linear Formula:
NaNO2
CAS Number:
Molecular Weight:
69.00
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

99.999% trace metals basis

form

solid

autoignition temp.

914 °F

impurities

≤15.0 ppm Trace Metal Analysis

mp

271 °C (lit.)

SMILES string

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

InChI

1S/HNO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1

InChI key

LPXPTNMVRIOKMN-UHFFFAOYSA-M

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1 of 4

This Item
237213S2252SX0665
Sodium nitrite 99.999% trace metals basis

563218

Sodium nitrite

-
Sodium nitrite ACS reagent, ≥97.0%

237213

Sodium nitrite

Essential Grade
Sodium nitrite ReagentPlus®, ≥99.0%

S2252

Sodium nitrite

-
Sodium Nitrite Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

SX0665

Sodium Nitrite

-
assay

99.999% trace metals basis

assay

≥97.0%

assay

≥99.0%

assay

≥97.0%

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

impurities

≤15.0 ppm Trace Metal Analysis

impurities

≤0.01% insolubles

impurities

-

impurities

≤0.01% Insoluble matter

mp

271 °C (lit.)

mp

271 °C (lit.)

mp

271 °C (lit.)

mp

280 °C (decomposition)

autoignition temp.

914 °F

autoignition temp.

914 °F

autoignition temp.

914 °F

autoignition temp.

-

Application

Sodium nitrite (NaNO2) can be used for a variety of applications, such as:
  • corrosion inhibition
  • as an effective drug on cyanide poisoning
  • inhibiting the growth of micro-organisms

signalword

Danger

Hazard Classifications

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

Storage Class

5.1B - Oxidizing hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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Thiourea and substituted thioureas as corrosion inhibitors for aluminium in sodium nitrite solution
Subramanyam NC, et al.
Corrosion Science, 34(4), 563-571 (1993)
Factors affecting the bacteriostatic action of sodium nitrite
Castellani AG and Niven Jr CF
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