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31443

Sigma-Aldrich

Sodium nitrite

puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99%

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About This Item

Fórmula lineal:
NaNO2
Número de CAS:
7632-00-0
Peso molecular:
69.00
EC Number:
231-555-9
MDL number:
MFCD00011118
UNSPSC Code:
12352302
PubChem Substance ID:
329753768

grade

ACS reagent
puriss. p.a.

agency

reag. Ph. Eur.

vapor pressure

<0.0001 hPa ( 25 °C)

assay

≥99%

form

powder or crystals

autoignition temp.

914 °F

impurities

≤0.001% heavy metals (as Pb)

pH

9

mp

271 °C (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤20 mg/kg
Fe: ≤10 mg/kg
K: ≤50 mg/kg

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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General description

Combined effect of NaNO2 and NaCl on the growth of Listeria monocytogenes in tryptone soya broth has been investigated using automated turbidimetric system. Its carcinogenic effects in F-344 rats have been evaluated.

Application

Sodium nitrite may be used as a standard for the quantitative determination of nitrite in culture medium. It may be used in the preparation of isopropyl nitrite, via reaction with isoamyl alcohol.

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

Certificados de análisis (COA)

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Alyssa Gill et al.
Analytica chimica acta, 1077, 167-173 (2019-07-17)
Nitrite is a naturally occurring species present in various food samples and also present in our bodies as a product of nitric oxide (NO) oxidation. Considering the ubiquity of nitrite, its determination is of great importance in both biological and
Fernanda M Ferraz et al.
Water environment research : a research publication of the Water Environment Federation, 89(6), 549-554 (2017-05-27)
This study aimed to determine the interference of nitrite (<inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="00549-ilm01.gif"/>) with soluble chemical oxygen demand (COD) measurements from the effluent of landfill leachate treated by sequencing batch reactors (SBRs). Synthetic wastewater assimilating young and old landfill leachate was
Fei Yang et al.
Journal of hazardous materials, 406, 124774-124774 (2020-12-15)
Futility of traditional advanced oxidation processes (AOPs) in saline wastewater treatment has stimulated the quest for novel "halotolerant" chemical oxidation technology. Acetylacetone (AA) has proven to be a potent photo-activator in the degradation of dyes, but the applicability of UV/AA
A Maekawa et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 20(1), 25-33 (1982-02-01)
The carcinogenicity of sodium and of sodium nitrate was examined in F-344 rats. Sodium nitrite was administered in the drinking-water for 2 yr at levels of 0.125 or 0.25%. Sodium nitrate was given in the diet at levels 2.5 or
Hsin-Tzu Tai et al.
Polymers, 11(8) (2019-08-21)
We investigated the self-assembled structures and photoresponsive and crystallization behaviors of supramolecules composed of 4-methoxy-4'-hydroxyazobenzene (Azo) molecules and polyethylene glycol (PEG) that were formed through hydrogen-bonding interactions. The Azo/PEG complexes exhibited the characteristics of photoresponse and crystallization, which originated from
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