Opax

Description: Zirconium Oxide, Zirconia

Oxide	Analysis	Formula
Na2O	1.11%	1.00
ZrO2	90.84%	41.18
Al2O3	0.91%	0.50
SiO2	6.48%	6.02
Oxide Weight		5,548.72
Formula Weight		5,548.72

Notes

Opax is a brand-name product, it is actually zirconia (zirconium dioxide), Zircopax is a brand-name of zircon (zirconium silicate). Both are used as opacifiers. Zircon is the natural source material from which zirconia is made. Opax does not opacify any better than zircopax, but it is more expensive. And it mattes glazes much more.

Related Information

Links

Materials	Ultrox
Materials	Zircon
Materials	Zircopax Plus
Typecodes	Opacifier Opacifiers are powders that turn transparent glazes opaque by various chemical and physical mechanisms (and combinations of mechanisms).

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