Skip to Content
Merck
CN
All Photos(1)

Documents

Safety Information

8.22266

Sigma-Aldrich

Chromium(VI) oxide

for synthesis

Sign Into View Organizational & Contract Pricing

Synonym(s):
Chromium(VI) oxide, Chromic anhydride, Chromium trioxide
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 Information

危险化学品

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service