What is chromium oxide

Chromium Oxide (III) is an amphoteric solid, dark green.

This very stable dye is widely used in the construction, ceramics, paint and cosmetics industries.

Because of its widespread use in many industries, its presence in wastewater is inevitable.

The aim of this study was to evaluate S. meliloti 1021 EPS as a substance that accelerates the removal of chromium oxide (III) from sewage and wastewater (1).

With regard to its safety in cosmetic products, there are no important contraindications (2).

Molecular Formula  : Cr₂O₃

Molecular Weight : 151.99

CAS : 1308-38-9

Synonyms :

• Green cinnabar
• Oxide of chromium
• Chrome Green
• Chrome oxide
• Green chromium oxide
• Chromium(3+) oxide
• EINECS 215-160-9
• Chromium(III) sesquioxide
• C.I. Pigment Green 17

References__________________________

(1) Sinorhizobium meliloti 1021 Exopolysaccharide as a Flocculant Improving Chromium(III) Oxide Removal from Aqueous Solutions.

Szewczuk-Karpisz K, Wiśniewska M, Pac M, Choma A, Komaniecka I.
Water Air Soil Pollut. 2014;225:2052. Epub 2014 Jul 5.

(2) https://www.cdc.gov/niosh/ipcsneng/neng1531.html