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Merck
CN

05-4600

Chromium(VI) oxide

SAJ special grade, ≥98.0%

Synonym(s):

Chromic anhydride

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About This Item

Empirical Formula (Hill Notation):
CrO3
CAS Number:
1333-82-0
Molecular Weight:
99.99
UNSPSC Code:
12352303
PubChem Substance ID:
329748066
EC Number:
215-607-8
MDL number:
MFCD00010952

Key Documents

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InChI key

WGLPBDUCMAPZCE-UHFFFAOYSA-N

InChI

1S/Cr.3O

SMILES string

O=[Cr](=O)=O

grade

SAJ special grade

assay

≥98.0%

form

solid

availability

available only in Japan

pH

<1 (20 °C, 100 g/L)

mp

196 °C (dec.) (lit.)

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signalword

Danger

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

5.1A - Strongly oxidizing hazardous materials

wgk

WGK 3

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
U8547
U8544
U8248
U2235
L8044

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Evidence for the protective effect of ascorbic acid (vitamin C) in treatment with gamma-rays and chromium (VI) oxide (CrO3) in somatic cells of Drosophila.
O Olvera et al.
Mutation research, 346(1), 19-21 (1995-01-01)
Reyes Sierra-Alvarez
Waste management (New York, N.Y.), 29(6), 1885-1891 (2009-01-13)
Large volumes of preservative-treated wood containing toxic Cr, Cu and As salts are decommissioned worldwide. This study investigated the effectiveness of solid-state fermentation with copper-tolerant brown-rot fungi for the remediation of wood treated with chromated copper arsenate (CCA) and acid
Sethsiri S Samaratunga et al.
Environmental science and pollution research international, 15(1), 27-30 (2008-03-01)
Chromium enters into the aquatic environment as a result of effluent discharge from steel works, electroplating, leather tanning industries and chemical industries. As the Cr(VI) is very harmful to living organisms, it should be quickly removed from the environment when
Sara L Holland et al.
Toxicology in vitro : an international journal published in association with BIBRA, 24(6), 1764-1767 (2010-07-20)
Toxicity of the environmental carcinogen chromate is known to involve sulfur starvation and also error-prone mRNA translation. Here we reconcile those facts using the yeast model. We demonstrate that: (i) cysteine and methionine starvation mimic Cr-induced translation errors, (ii) genetic
Kyung-Hwa Son et al.
Journal of toxicology and environmental health. Part A, 67(13), 1027-1049 (2004-06-19)
CrO3 is cytotoxic for human epithelial 293 kidney cells over a narrow concentration range of approximately 2-8 microM (D50 approximately 3.0 microM); significantly greater toxicity is observed in clonogenic assays (D50 approximately 0.1-1.0 microM). Survival of a small fraction of
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