Zirconium Oxide

Name:
Zirconium Oxide
Detailed information:

Chemistry name:	zirconia; zirconium dioxide; zirconic anhydride; zirconium anhydride
M Formula:	ZrO2
Properties:
Heavy, white, amorphous powder. D 5.73, mp 2700C, Mohs hardness 6.5, refr index 2.2. Insoluble in water and most acids or alkalies at room temperature; soluble in nitric acid and hot concentrated hydrochloric, hydrofluoric, and sulfuric acids. Most heat resistant of commercial refractories; dielectric.
Derivation:
By heating zirconium hydroxide or zirconium carbonate.
Grade:
Reagent, technical, crystals, fused, whiskers, CP (99% zirconia), hydrous. The fused grade is reported to be harder than diamond (11 on Mohs scale).
Hazard:
TLV: 5 mg(Zr)/m3.
Use:
(Unstabilized) Production of piezoelectric crystals, high-frequency induction coils, colored ceramic glazes, special glasses, source of zirconium metal, heat-resistant fibers, (hydrous) odor absorbent, to cure dermatitis caused by poison ivy. (Stabilized with CaO refractory furnace linings, crucibles, solid electrolyte for batteries operating at high temperature.