Zirconium Silicate 65% Zircon Flour

Zirconium Silicate 65% Zircon Flour (CAS 10101-52-7, molecular formula ZrSiO4) is a raw material for tile, sanitaryware, tableware and refractory production, where particle size and impurity profile drive fired colour and body strength. China Chemicals supplies it at ZrO2 + HfO2 65% min in pack sizes from 1 kg through to 1000 kg Bulk Bag, so laboratory trial quantities and full production volumes can be sourced from the same specification.

It is also traded as Zircon Flour, Zircon Opacifier, Zirconium Orthosilicate. Every consignment ships with a batch-specific Certificate of Analysis and the current Safety Data Sheet, and material is stored and picked under stock rotation so you receive product well inside its shelf life.

Typical applications

Opacifier in ceramic tile and sanitaryware glazes
Whitening agent in tableware and porcelain enamel
Refractory aggregate in foundry and furnace linings
Investment casting mould facing
Abrasive and grinding media manufacture

Technical specification

Chemical name	Zirconium Silicate 65% Zircon Flour
Synonyms	Zircon Flour, Zircon Opacifier, Zirconium Orthosilicate
CAS number	10101-52-7
Molecular formula	ZrSiO4
Appearance	White fine powder
ZrO2 + HfO2	65.0% min
SiO2	32 – 34%
Fe2O3	0.1% max
TiO2	0.15% max
Particle size D50	1.0 – 1.5 µm
Whiteness	90% min

Values above are typical and are confirmed on the Certificate of Analysis issued against each batch. Tighter specifications can be quoted where a process requires them.

Packaging and supply

Available in 1 kg, 5 kg, 25 kg Bag, 1000 kg Bulk Bag. Bulk, road tanker and export drum quantities are quoted on request, including FOB and CIF terms for international shipment. Pricing shown is per pack in USD, exclusive of freight and any applicable duties.

Handling and safety

Transport classification: Not regulated · May cause respiratory irritation as dust. Store in the original closed container in a cool, well-ventilated area away from incompatible materials, and handle using appropriate personal protective equipment. Read the Safety Data Sheet in full before use — it is issued with every order and is available on request before purchase.

Supply to industry only. Products are sold for legitimate industrial, laboratory and manufacturing use. We may request end-use details and business registration before releasing an order.