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Merck
CN

V800375

Sodium dichromate dihydrate

LR, ≥99%

Synonym(s):

Sodium bichromate

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About This Item

Linear Formula:
Na2Cr2O7 · 2H2O
CAS Number:
7789-12-0
Molecular Weight:
298.00
UNSPSC Code:
12352302
PubChem Substance ID:
329829357
EC Number:
234-190-3
MDL number:
MFCD00149166
Assay:
≥99%
Grade:
LR
Form:
crystalline powder

Key Documents

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InChI key

JYDRNIYTFCBIFC-UHFFFAOYSA-N

InChI

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

SMILES string

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

grade

LR

product line

Vetec™

assay

≥99%

form

crystalline powder

pH

3.5 (20 °C, 100 g/L)

mp

91 °C (lit.)

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Legal Information

Vetec is a trademark of Merck KGaA, Darmstadt, Germany

signalword

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

5.1B - Oxidizing hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
BGBC1267V
BGBC0609V
BGBB9876

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Isabelle Hininger et al.
Free radical biology & medicine, 42(12), 1759-1765 (2007-05-22)
Several studies have demonstrated beneficial effects of supplemental trivalent Cr in subjects with reduced insulin sensitivity with no documented signs of toxicity. However, recent studies have questioned the safety of supplemental trivalent Cr complexes. The objective of this study was
Chad M Thompson et al.
Regulatory toxicology and pharmacology : RTP, 64(1), 68-76 (2012-06-19)
In vitro studies on hexavalent chromium [Cr(VI)] indicate that reduced forms of this metal can interact with DNA and cause mutations. Recently, Cr(VI) was shown to induce intestinal tumors in mice; however, Cr(VI) elicited redox changes, cytotoxicity and hyperplasia -
Amanda J Lee et al.
Biomarkers : biochemical indicators of exposure, response, and susceptibility to chemicals, 9(2), 103-115 (2004-09-17)
Hexavalent chromium (Cr[VI]) is a genotoxic carcinogen that has been associated with an increased risk of nasal and respiratory tract cancers following occupational exposure. Although the precise mechanism(s) remain to be elucidated, there is evidence for a role of oxidative
Silvio De Flora et al.
Mutation research, 610(1-2), 38-47 (2006-07-29)
Chromium(VI) compounds are genotoxic in a variety of cellular systems. Their potential carcinogenicity is affected by toxicokinetic patterns restricting bioavailability to certain targets, and by metabolic pathways affecting interaction of chromate-derived reactive species with DNA. Epidemiological data indicate that chromium(VI)
Chad M Thompson et al.
Toxicological sciences : an official journal of the Society of Toxicology, 123(1), 58-70 (2011-06-30)
Chronic ingestion of high concentrations of hexavalent chromium [Cr(VI)] in drinking water induces intestinal tumors in mice. To investigate the mode of action (MOA) underlying these tumors, a 90-day drinking water study was conducted using similar exposure conditions as in
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