Zinc Phosphate
- CAS
- 7779-90-0
- EC
- 231-944-3
- Sectors
- Coatings, Adhesives, Sealants & Elastomers, Automotive, Building & Construction
Zinc Phosphate (CAS 7779-90-0) is an inorganic salt in the form of a white powder that forms insoluble, crystalline coatings with strong adhesion to metal substrates, which makes it useful in anti-corrosive primers, metal surface pretreatments and automotive, marine and industrial coating systems.
Typical Properties
| Molecular formula | H3O4P.3/2Zn |
|---|---|
| Molecular weight | 386.11 g/mol |
| Appearance | White powder |
| Form | Powder |
| Color | White |
| Odor | Odorless |
| Melting point | 1040 °C |
| Density | 3.7 g/cm³ |
| Water solubility | Insoluble in water |
| GHS signal word | Warning · Health hazard, Environmental hazard |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Zinc Phosphate
Applications
Used in anti-corrosive primers, metal surface pretreatments, and as a cement additive in dentistry. It enhances adhesion and extends coating life in automotive, marine, and industrial sectors. Also used as a ceramic pigment base.
Safety & Risks
Low solubility and toxicity; dust may irritate eyes and respiratory tract. Avoid inhalation and store in dry conditions to prevent clumping.
Packaging
Delivered in 25 kg polyethylene-lined paper bags or drums. Store in a cool, dry, and well-ventilated area away from acids.