CAS:1314-13-2
EINECS:215-222-5
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。
Uses:
Rubber grade zinc oxide is mainly used in the production of radial tires, bias tires, conveyor belts, hose, rubber belt, rubber shoes and latex gloves, . The performance of their products fully comply with the standards of China, State Ministry of Chemical Industry and ASTM.
Characteristic:
- Strong activity, uniform particle size, strong dispersibility, good promotion of vulcanization, increase the crosslinking density of vulcanizing adhesive, and make vulcanization more thorough;
- It can improve adhesion of rubber, steel wire, curtain fabric and other skeleton materials.
- Good dynamic mechanical performance, small deformation of rubber products, less heat generation, good abrasion resistance and good aging resistance.
Quality standard:
Item specification
Zinc oxide (as ZnO)%,≥ 99.7 99.5 95.0
Metals (as dry)%,≤ No No No
Lead oxide (as Pb)%,≤ 0.037 0.14 0.3
Manganese oxide (as Mn)%,≤ 0.0001 0.0003 /
Copper oxide (as Cu)%,≤ 0.0002 0.0007 /
Insoluble matter in HCl%,≤ 0.006 0.05 0.10
Loss on ignition%,≤ 0.20 0.20 1
Residue on sieve (45um) %,≤ 0.10 0.20 0.40
Water soluble matter %,≤ 0.10 0.15 1
Volatile matter on 105oC%,≤ 0.3 0.5 0.8
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.