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Sigma-Aldrich

Sodium chromate tetrahydrate

99%

Synonym(s):

Disodium chromate tetrahydrate, Sodium chromate(VI) tetrahydrate

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About This Item

Linear Formula:
Na2CrO4 · 4H2O
CAS Number:
10034-82-9
Molecular Weight:
234.03
EC Number:
231-889-5
MDL number:
MFCD00149167
UNSPSC Code:
12352302
PubChem Substance ID:
24852969
NACRES:
NA.22

Assay

99%

form

solid

SMILES string

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

InChI

1S/Cr.2Na.4H2O.4O/h;;;4*1H2;;;;/q;2*+1;;;;;;;2*-1

InChI key

AVHUVTPOXZEIRG-UHFFFAOYSA-N

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Application

Sodium chromate tetrahydrate can be used as an oxidant in organic synthesis and also as a carrier electrolyte in the capillary electrophoresis.

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 - Repr. 1B - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT RE 1

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH SVHC Candidate List

CAS No.

EU REACH Annex XVII (Restriction List)

CAS No.

EU REACH Annex XIV (Authorisation List)

CAS No.

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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A study of the pollution of the Aries River (Romania) using capillary electrophoresis as analytical technique.
Forray F L and Hallbauer D K
Environmental Geology, 39(12), 1372-1384 (2000)
Sodium chromate oxidation of enol benzoates. Allylic oxidation versus a novel rearrangement.
Goldblum A and Mechoulam R
Journal of the Chemical Society. Perkin Transactions 1, (17), 1889-1898 (1977)
Seung-Hee Maeng et al.
Mutation research, 539(1-2), 109-116 (2003-09-02)
According to the toxicological and epidemiological studies, hexavalent chromium (Cr) is associated with increase of lung cancer risk. Genotoxic effects, such as chromosomal aberrations, and cellular oxidative DNA damage by reactive oxygen species produced by hexavalent Cr exposure may play
Versatility of capillary electrophoresis of anions with a high mobility chromate electrolyte.
Oehrle S A.
Journal of Chromatography A, 671(1-2), 383-387 (1994)
Judith M Myers et al.
Toxicology, 246(2-3), 222-233 (2008-03-11)
Hexavalent chromium [Cr(VI)] species such as chromates are cytotoxic. Inhalational exposure is a primary concern in many Cr-related industries and their immediate environments, and bronchial epithelial cells are directly exposed to inhaled Cr(VI). Chromates are readily taken up by cells
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