Zinc Phosphate Anti-Corrosive Pigment

Zinc Phosphate Anti-Corrosive Pigment (CAS 7779-90-0, molecular formula Zn3(PO4)2) is a coatings raw material used by paint, ink and adhesive formulators who need consistent dispersion, opacity and rheology from drum to drum. China Chemicals supplies it at Zn 50% min in pack sizes from 1 kg through to 500 kg Pallet, so laboratory trial quantities and full production volumes can be sourced from the same specification.

It is also traded as Trizinc Bis(orthophosphate), Zinc Orthophosphate, ZP. 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

Chromate-free anti-corrosive primer for steel
Marine and protective coating systems
Coil and general industrial primer manufacture
Water-based anti-corrosive emulsion paint
Powder coating primer formulation

Technical specification

Chemical name	Zinc Phosphate Anti-Corrosive Pigment
Synonyms	Trizinc Bis(orthophosphate), Zinc Orthophosphate, ZP
CAS number	7779-90-0
Molecular formula	Zn3(PO4)2
Appearance	White fine powder
Zinc as Zn	50.0% min
P2O5	28 – 32%
Water solubles	0.5% max
Oil absorption	20 – 30 g/100 g
pH (10% slurry)	6.0 – 8.0
Residue on 45 µm	0.1% max

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 Drum, 500 kg Pallet. 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: UN3077 · Hazardous to the aquatic environment. 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.