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521051

Sigma-Aldrich

Calcium nitrite solution

30 wt. % in H2O

Synonym(s):

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

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25 G
¥1,527.67
100 G
¥3,296.09

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Estimated to ship on2025年12月26日Details

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25 G
¥1,527.67
100 G
¥3,296.09

About This Item

Linear Formula:
Ca(NO2)2
CAS Number:
13780-06-8
Molecular Weight:
132.09
MDL number:
MFCD00049399
UNSPSC Code:
12352302
PubChem Substance ID:
24874185
NACRES:
NA.23
form:
liquid

¥1,527.67

Estimated to ship on2025年12月26日Details

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form

liquid

Quality Level

100

reaction suitability

core: calcium

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

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assay

97%

assay

97%

assay

97%

assay

97%

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

density

1.461 g/mL at 25 °C (lit.)

density

1.402 g/mL at 25 °C

density

-

density

-

refractive index

n20/D 1.6120 (lit.)

refractive index

n20/D 1.6015

refractive index

-

refractive index

-

bp

253 °C (lit.)

bp

-

bp

-

bp

264 °C (lit.)

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.[1][2][3]

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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