Check the listing for details. Hafnium diboride powder HfB2 - 5 grams - 99.5%. Condition: New. Listed at 26.90 USD. Hafnium diboride HfB2 5 grams - 99.5% Hafnium boride - Hafnium diboride HfB2 Melting point: ~3250°C - 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. Useful in nuclear applications because of the presence of Boron-10. Other applications include use of its relatively high conductivity, especially for a ceramic. Here you find important compounds for laboratory, hobby & collection. Because of technical reasons we can not show all of the compounds we sell. Just ask us for any material, we will send you the best offer. scope of delivery You get one Hafnium diboride HfB2 5 grams - 99.5% shipping fees I am happy to combine shipping to save you money! Please contact me!