Zirconium Oxychloride

MF: ZrOCl₂8H₂O
Properties: white crystalline needles.
Heated to 150, it loses 6 pieces of crystalline water; at 210, it loses all the crystalline water. It dissolves in water, methanol, alcohol, ether, but not in other solvents. Its aqueous solution is acidic.
Usage: Starting material for other zirconium chemicals. Also finds application with lube, additives, waterproof agent, refractory, ceramic, electronics, optical glass, etc.
Typical Analysis:

ZrO2+HfO2(min)	Fe2O3(max)	SiO2(max)	Na2O(max)	TiO2(max)	Al2O3(max)
36%	0.001%	0.003%	0.01%	0.0005%	0.0002%
35%	0.0015%	0.004%	0.01%	0.0005%	0.0002%

Zirconium Dioxide

MF: ZrO₂
Properties: White non-stereotyped powder. Its crystal has many varieties. The white powder is monoclinic form; the yellow is cubic crystal, odorless and insipid. Monoclinic form is 5.85 in density, while the cubic form is 5.6. Melting point is 2715 . It is insoluble in water, but only soluble in hot concentrated hydrofluoric acid and sulfuric acid. Melting with alkali, it produces related zirconates. Therefore it is chemically stable.
Usage: Mainly used for piezoelectric ceramic products, domestic ceramics, refractory, electronics industry and optical glass etc.
Spec:

ZrO2+HfO2(min)	Fe2O3(max)	SiO2(max)	Na2O(max)	TiO2(max)	Al2O3(max)
99.5%	0.005%	0.01%	0.02%	0.001%	0.02%
99.9%	0.0006%	0.008%	0.001%	0.001%	-