Chromium(III) Oxide, CA. 50 Microns, 98+% | 1308-38-9

 

Additional information

CAS ID

1308-38-9

IUPAC Name

oxo(oxochromiooxy)chromium

Molecular Formula

Cr2O3

Molecular Weight

SMILES

O=[Cr]O[Cr]=O

Description

517277

Synonym: chromium iii oxide, chromia, dichromium trioxide, chromium sesquioxide, chrome green, green chromium oxide, chromium 3+ oxide, green cinnabar, chrome ochre, chrome oxide

Additional InformationSiO2 + Al2O3: < 0.1% (typically); Sieve analysis (retained on 0.045 mm): < 0.02%; tamped apparent density (g/mL): 1.0 to 1.3
Assay Percent Range98.5% min
Linear FormulaCr2O3
Fieser03,38; 13,338
Merck Index15,2238
Solubility InformationSolubility in water: insoluble in water. Other solubilities: slightly soluble in acids and alkalies,practically insoluble in alcohol and acetone
Formula Weight151.99
Physical FormAmorphous Powder
Density5.2100g/mL
Loss on Heating0.4% (1000°C, 0.5 hr.) max.
PackagingGlass bottle
Specific Gravity5.21
Water_soluble Salts< 0.3%
Boiling Point4000°C
ColorGreen
Melting Point2435°C
pH5 to 7
Chemical Name or MaterialChromium(III) oxide

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