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Merck

521051

Sigma-Aldrich

Calcium nitrite solution

30 wt. % in H2O

Sinónimos:

Calcium dinitrite, Calcium nitrite, Calcium nitrite (Ca(NO2 )2 )

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About This Item

Fórmula lineal:
Ca(NO2)2
Número de CAS:
Peso molecular:
132.09
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23

form

liquid

concentration

27-33% (titration by KMnO4)
30 wt. % in H2O

refractive index

n20/D 1.3946

density

1.30 g/mL

SMILES string

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

InChI

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

InChI key

AONJRPXZCVADKF-UHFFFAOYSA-L

General description

Calcium nitrite solution (Ca(NO2)2) is widely utilized as a corrosion inhibitor. It protects the metal surface against chloride attack and increases the threshold level and improves the overall life of the concrete. Ca(NO2)2 does not change the mechanical properties of the cement.

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

230.0 °F - closed cup

flash_point_c

110 °C - closed cup

ppe

Eyeshields, Gloves


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Microbially induced concrete corrosion is a major deterioration process in sewers, causing a huge economic burden, and improved mitigating technologies are required. This study reports a novel and promising effective solution to attenuate the corrosion in sewers using calcium nitrite-admixed
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Effect of calcium nitrite-based corrosion inhibitor in preventing corrosion of embedded steel in concrete
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Cement and Concrete Research, 36(3), 530-535 (2006)
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