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Merck
CN

V800374

Sodium dichromate dihydrate

AR, ≥99.5%

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:
329829356
EC Number:
234-190-3
MDL number:
MFCD00149166
Assay:
≥99.5%
Grade:
AR
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

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%

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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
BGBC2169V
BGBC0326

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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
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
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
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