Zirconium Boride Powder

Description

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.
ZrB2, a hard, toxic, gray powder that melts at 3000°C;  It is also known as zirconium diboride.
Chemical Formula: ZrB2

Specifications

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

Chemical Properties

B= 19.20% and Zr+Hf = 80.80%

Physical Properties

Various granulations are available from coarse powder to 4-7 microns average

Typical Applications

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.

Packaging

Steel drums