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8.22266

Sigma-Aldrich

Chromium(VI) oxide

for synthesis

Synonym(s):

Chromium(VI) oxide, Chromic anhydride, Chromium trioxide

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About This Item

Empirical Formula (Hill Notation):
CrO3
CAS Number:
Molecular Weight:
99.99
MDL number:
UNSPSC Code:
12352303
EC Index Number:
215-607-8
NACRES:
NA.22

Quality Level

form

solid

reaction suitability

reagent type: oxidant

pH

<1 (20 °C, 100 g/L in H2O)

mp

197 °C

density

2.7 g/cm3 at 20 °C

bulk density

900 kg/m3

storage temp.

2-30°C

InChI

1S/Cr.3O

InChI key

WGLPBDUCMAPZCE-UHFFFAOYSA-N

Related Categories

Analysis Note

Assay (iodometric): ≥ 99.0 %
Identity (ICP-OES): passes test

Signal Word

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 Code

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 3


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)

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