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379972

Sigma-Aldrich

Chromium(III) nitrate nonahydrate

≥99.99% trace metals basis

Synonym(s):

Chromium nitrate nonahydrate, Chromium trinitrate nonahydrate

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About This Item

Linear Formula:
Cr(NO3)3 · 9H2O
CAS Number:
Molecular Weight:
400.15
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23
assay:
≥99.99% trace metals basis
form:
crystalline
solubility:
H2O: very soluble(lit.)

assay

≥99.99% trace metals basis

form

crystalline

impurities

≤100.0 ppm Trace Metal Analysis

mp

60 °C (lit.)

solubility

H2O: very soluble(lit.)

density

1.80 g/mL (lit.)

SMILES string

[Cr+3].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O

InChI

1S/Cr.3NO3.9H2O/c;3*2-1(3)4;;;;;;;;;/h;;;;9*1H2/q+3;3*-1;;;;;;;;;

InChI key

GVHCUJZTWMCYJM-UHFFFAOYSA-N

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Application

Chromiun (III) nitrate nonahydrate may be used to prepare chromium oxide nanoparticles by thermal decomposition.

pictograms

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Warning

Hazard Classifications

Aquatic Chronic 3 - Eye Irrit. 2 - Ox. Sol. 3 - Skin Irrit. 2 - Skin Sens. 1B

Storage Class

5.1B - Oxidizing hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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


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Original synthesis of chromium (III) oxide nanoparticles
Gibot P & Vidal L.
J. Eur. Ceram. Soc., 30.4, 911-915 (2010)
[A simple method for preparing chromosulfuric or chromonitric acid].
W Tittelbach-Helmrich
Zeitschrift fur medizinische Laboratoriumsdiagnostik, 25(1), 56-57 (1984-01-01)
A Johansson et al.
Environmental research, 39(2), 372-385 (1986-04-01)
Rabbits inhaled aerosols of hexavalent chromium (Na2CrO4) and trivalent chromium (Cr(NO3)3) at concentrations of 0.9 and 0.6 mg/m3 of the metal, respectively, for 4-6 weeks (5 days/week and 6 hr/day). Significantly more macrophages were obtained from the lungs of rabbits
D M Stearns et al.
Biochemistry, 34(3), 910-919 (1995-01-24)
Chromium(VI) is a known human carcinogen which requires intracellular reduction for activation. Ascorbate (vitamin C) has been reported to function as a major reductant of Cr(VI) in animals and cell culture systems. The reaction of Cr(VI) with varying concentrations of
Michael A Idachaba et al.
Journal of hazardous materials, 96(2-3), 331-340 (2002-12-21)
An evaluation of the effect of differences in chromium nitrate to cement ratio on the microbial stability of a chromium nitrate/cement waste form, as reflected in the leaching of chromium, calcium, magnesium and aluminum; was carried out in this study.

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