Chromium(III) oxide (Cr2O3) Micron Powder, Purity: 99%, Average Particle Size: 4.5um

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SKU:
NG10SM10022
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Description

Chromium(III) oxide (Cr2O3) Micron Powder, Purity: 99%, Average Particle Size: 4.5um

 

25 gram: 16€
100 gram:38€
500 gram:127€
1000 gram: 185€

 

Compound Formula

Cr2O3

Molecular Weight

151.99

Appearance

Green powder or crystals

Melting Point

2435 °C (4415 °F)

Boiling Point

4000 °C (7232 °F)

Density

5.22 g/cm3

 

Certificate Of Analysis (%)

CrO3

≥99.3

Fe2O3

≤0.1

Na2O

≤0.1

CeO

≤0.01

MgO

≤0.01

Al2O3

≤0.08

SiO2

≤0.1

CaO

≤0.1

Cr6+

≤10

 

Particle Size Analysis

D10

1-2.5

D50

4.2-4.65

D90

8-11

 

Chromium Oxide Nanoparticles (Cr2O3) Applications:

Chromium(III) oxide is the inorganic compound of the formula Cr2O3. It is one of principal oxides of chromium and is used as a pigment. In nature, it occurs as the rare mineral eskolaite. Because of its considerable stability, chromia is commonly used pigment and was originally called viridian. It is used in paints, inks, and glasses. It is the colourant in "chrome green" and "institutional green." Chromium(III) oxide is the precursor to the magnetic pigment chromium dioxide, according to the following reaction: Cr2O3 + 3 CrO3 → 5 CrO2 + O2. It is one of the materials that are used when polishing the edges of knives on a piece of leather (also called stropping).

 

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