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Sigma-Aldrich

Chromium(III) nitrate nonahydrate

99%

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About This Item

Linear Formula:
Cr(NO3)3 · 9H2O
CAS Number:
7789-02-8
Molecular Weight:
400.15
EC Number:
236-921-1
MDL number:
MFCD00149659
UNSPSC Code:
12352302
PubChem Substance ID:
329752522
NACRES:
NA.55

Quality Level

200

Assay

99%

form

crystals or chunks

reaction suitability

reagent type: catalyst
core: chromium

pH

2-3 (20 °C, 50 g/L)

mp

60 °C (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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General description

Chromium (III) nitrate nonahydrate is a hydrated chromium salt. It is commonly used as a chromium source in the organic synthesis.

Application

Chromium (III) nitrate nonahydrate (Cr (NO3)3.9H2O) may be used in the:
  • Synthesis of nanosized chromium (Cr2O3) oxide by thermal decomposition method.
  • Preparation of chromium (III) based Ziegler-Natta catalysts for the polymerization of ethylene.
  • Synthesis of highly porous coordination polymer MIL-101.

Pictograms

Flame over circleExclamation mark
GHS03,GHS07

Signal Word

Warning

Hazard Statements

H272,H315,H317,H319,H412

Hazard Classifications

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

危险化学品

Certificates of Analysis (COA)

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Interconversion of CrO2 formed by decomposition of chromium (III) nitrate nonahydrate.
Maciejewski M, et al.
Journal of Solid State Chemistry, 119(1), 13-23 (1995)
Milka O Montes-Holguin et al.
Environmental toxicology and chemistry, 25(1), 220-226 (2006-02-24)
The objective of the present study was to determine the oxidative stress caused by hexavalent chromium (Cr[VI]), the chromium (Cr) uptake, and the Cr speciation in Convolvulus arvensis L. plants grown in hydroponics media containing either Cr(VI) or Cr(III). The
B Gammelgaard et al.
Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS), 13(1-2), 82-88 (1999-08-13)
The purpose of these studies was to compare the in vitro absorption of two inorganic chromium(III) compounds: chromium chloride and chromium nitrate, with organic chromium(III)-picolinate; and to investigate if any in vitro metabolism of chromium(VI) takes place. The in vitro
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
S Ueno et al.
The Kitasato archives of experimental medicine, 63(1), 49-57 (1990-04-01)
In order to study the difference of uptake and distribution between hexavalent (Cr6+) and trivalent (Cr3+) chromium in isolated rat hepatocytes, the cells were incubated with Cr6+ or Cr3+ (1 mM Cr) at 37 degrees C for up to 60
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