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Key Documents

V800374

Sigma-Aldrich

Sodium dichromate dihydrate

AR, ≥99.5%

Synonym(s):

Sodium bichromate

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About This Item

Linear Formula:
Na2Cr2O7 · 2H2O
CAS Number:
Molecular Weight:
298.00
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
Assay:
≥99.5%
grade:
AR
form:
crystalline powder

grade

AR

product line

Vetec

Assay

≥99.5%

form

crystalline powder

pH

3.5 (20 °C, 100 g/L)

mp

91 °C (lit.)

anion traces

chloride (Cl-): ≤0.002%

cation traces

Fe: ≤0.002%
heavy metals (as Pb): ≤0.002%

SMILES string

O.O.[Na+].[Na+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O

InChI

1S/2Cr.2Na.2H2O.7O/h;;;;2*1H2;;;;;;;/q;;2*+1;;;;;;;;2*-1

InChI key

JYDRNIYTFCBIFC-UHFFFAOYSA-N

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Legal Information

Vetec is a trademark of Merck KGaA, Darmstadt, Germany

Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Muta. 1B - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT RE 1 Inhalation

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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M Rajasimman et al.
Journal of hazardous materials, 168(1), 291-297 (2009-03-17)
The emulsion liquid membrane technique was used for the extraction of hexavalent chromium ions from aqueous solution of waste sodium dichromate recovered from the pharmaceutical industry wastewater. The liquid membrane used was composed of kerosene oil as the solvent, Span-80
Huoy-Rou Chang et al.
Toxicology in vitro : an international journal published in association with BIBRA, 25(1), 1-6 (2010-07-06)
Chromium (Cr) is considered to be a risk factor to the cardiovascular effects of fine particulate matter components to PM2.5 from traffic in highway patrol officers. RKIP (raf kinase inhibitor protein) is a physiological inhibitor of GRK-2 (G-protein-coupled receptor kinase
N J Hodges et al.
Toxicology, 197(2), 101-112 (2004-03-09)
Changes in the components of the Jun N-terminal kinase (JNK) signalling pathway were investigated in human A549 lung carcinoma cells treated with sodium dichromate. Sodium dichromate (100 microM, 0-6h) failed to activate nuclear factor kappa B (NF-kappaB) as determined by
Pulane E Molokwane et al.
Water research, 42(17), 4538-4548 (2008-09-02)
A mixed-culture of bacteria collected from a wastewater treatment plant in Brits, North-West Province (South Africa) biocatalytically reduced Cr(VI) at much higher concentrations than previously observed in cultures isolated in North America. Cr(VI) reduction rate up to 8 times higher
Amanda J Lee et al.
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, 14(2), 497-505 (2005-03-01)
Although the genotoxic mechanism(s) of hexavalent chromium (CrVI) carcinogenicity remain to be fully elucidated, intracellular reduction of CrVI and concomitant generation of reactive intermediates including reactive oxygen species and subsequent oxidative damage to DNA is believed to contribute to the

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