Strontium oxide powder story
It is one of the most abundant elements, ranks 18 in abundance among elements in Earth's crust, is very reactive chemically and is just combined. In most reactions with oxygen is bound in preference to other elements found in Earth's crust just as the oxide ZrO2,or as part of the complex oxide, such as zircon, the elpidita, the eudialita, etc. .
Yet of the nearly 20 minerals containing zirconium, only two are of commercial importance:
Zircon. A zirconium silicate, is the primary source of supply
A Zirconium Oxide Powder is a minor source of supply
These two minerals are mixtures of zirconium and hafnium which are virtually indistinguishable in their chemical properties, and were only found together.
Zirconium is a grayish white metal, shiny, very resistant to corrosion and is lighter than steel. When finely divided can burn spontaneously in air (prior to nitrogen react with oxygen), especially at high temperatures (around 500 ° C). It is a metal resistant to acids, but can be dissolved with hydrofluoric acid.
The zirconium melts near 2715 ° C. It is estimated that its boiling point to 4377 ° C, but some observations suggest that it is near the 8600 ° C.