521051
Calcium nitrite solution
30 wt. % in H2O
Synonym(s):
Calcium dinitrite, Calcium nitrite, Calcium nitrite (Ca(NO2 )2 )
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About This Item
Linear Formula:
Ca(NO2)2
CAS Number:
Molecular Weight:
132.09
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23
Recommended Products
form
liquid
Quality Level
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 Code
10 - Combustible liquids
WGK
WGK 3
Flash Point(F)
230.0 °F - closed cup
Flash Point(C)
110 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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A novel approach for quantitative LIBS fluorine analysis using CaF emission in calcium-free samples
Alvarez-Llamas C, et al.
Journal of Analytical Atomic Spectrometry, 32(1), 162-166 (2017)
Effect of calcium nitrite-based corrosion inhibitor in preventing corrosion of embedded steel in concrete
Ann K, et al.
Cement and Concrete Research, 36(3), 530-535 (2006)
Nitrite admixed concrete for wastewater structures: Mechanical properties, leaching behavior and biofilm development
Li X, et al.
Construction Building Materials, 233, 117341-117341 (2020)
Rosemary M Onjiko et al.
Analytical methods : advancing methods and applications, 9(34), 4964-4970 (2017-10-25)
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Environmental science & technology, 54(4), 2323-2333 (2020-01-25)
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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