Coating and paint grade zinc oxide

CAS No.:1314-13-2


Molecular Formula:ZnO

Molecular Weight:81.39

Appearance:White or light yellow fine powder, odorless, tasteless, Yellow at high temperature and white after cooling, melting point of 1975℃ (3587F)

Solubility:It is a two-stage oxide, soluble in acid、concentrated hydroxid、 ammonia water and ammonium salt solutions, difficult to dissolve in water and ethanol。


Used in the production of top-grade paint, coating and coating intermediates


1. Small particle size, large specific surface area, strong adhesion and covering power, greatly improving the efficacy of coating;

2. Small proportion, not easy to precipitate in use or final products;

3. It also has the function of shielding ultraviolet ray, which can play the role of anti-aging in the coating.

Quality standard:

Item specification
Zinc oxide (as ZnO)%,≥ 99.7 99.5 99.0
Metals (as dry)%,≤ NO NO NO
Lead oxide (as Pb)%,≤ 0.037 0.14 0.15
Residue on sieve (45um mesh) %,≤ 0.1 0.15 0.20
Water soluble matter %,≤ 0.1 0.1 0.15
Oil absorption,g/100g ,≤ 14 14 14
Volatile matter on 105oC%,≤ 0.3 0.4 0.8
Color (compared with the standard samples) similar slight yellow slight yellow
Reducing power (compared with the standard samples) ,≥ 100 95 90

Packing: 25kg/ bag, lined with polyethylene film bag, outer packing is covered with film woven bag.

Storage: Avoid damage, dampness, contamination and contact with acids.