|

zirconium diboride powder, zirconium boride powder, ZrB2, zirconium diboride enriched, CAS# 12045-64-6
Chemical Formula: ZrB2
a) A light grey metallic powder, chemically attacked very little by cold HCl, more rapidly by HNO3, and is dissolved by aqua regia. It reacts with H2SO4 and is readily attacked by fused alkali hydroxides, carbonates and disulfides. Produced by various processes.
b) ZrB2, a hard, toxic, gray powder that melts at 3000°C; It is also known as zirconium diboride.
B= 19.20% and Zr+Hf = 80.80%
Various granulations are available from coarse powder to 4-7 microns average
|
Molecular Weight (g/mol.)
|
112.8
|
|
Density (g/cm3)
|
6.09
|
|
Specific Gravity
|
|
|
Youngs Modulus
|
450
|
|
Melting Point (°C)
|
2990-3040
|
|
Mohs Hardness
|
8
|
|
Surface Area (m2/g)
|
0.5-0.8
|
|
Thermal Conductivity @20°C (cal/s-cm-°C)
|
0.055
|
|
Odor
|
Odorless
|
|
Apparent Density (Scott- g/in3)
|
25-30
|
|
Crystallography
|
Hexagonal
|
|
Solubility in Water
|
Insoluble
|
a) Useful in nuclear applications because of the presence of Boron-10.
b) Also used as an aerospace refractory, in cutting tools and to protect thermocouple tubes.
c) Other applications include use of its relatively high conductivity, especially for a ceramic.
Steel drums
Listed. For further information please call the U.S. Environmental Protection Agency at +1.202.554.1404
a) ACGIH TLV-A4 (Not Classifiable as a Human Carcinogen);
b) IARC-3 (Unclassifiable as to Carcinogenicity in Humans)"
CAS# 12045-64-6
|