Molecular
Formula£ºZnO
Molecular Weight: 81.37
Property: white powder, odorless, tastefree, non-gritty. Turn
yellow when heated and, white when cooled. Specific gravity:
5.606. Melting point: 1975¡æ. Hiding power: smaller than that
of basic lead white, ? of that of T10 2 and zinc sulphide. Staining
power: 2 times of that of basic lead white. The difference with
basic lead white is: it does not turn black with hydrogen sulfide;
dissolve in acids, alkalis, sal ammoniac and ammonia; does not
dissolve in water and alcohol; change after absorbing CO2 in
the air.
Purpose: mainly used as strengthening agent for rubber |
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products, secondary accelerator for sulphurate rubber, reinforcing
agent for coating material, material for hard glass, optical
glass, accelerant and medical use rubber ointment; also widely
used in lines such as oil refining, pigment and battery. |
| Quality index: |
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| ¡¡Specifications |
¡¡ |
Index |
| zinc
oxide |
% |
¡Ý |
99.7 |
| metallic
zinc |
% |
|
none |
| muriatic
acid insoluble substance |
% |
¡Ü |
0.006 |
| calcination
loss |
% |
¡Ü |
0.2 |
| hydrotrope
|
% |
¡Ü |
0.10 |
| sieve
residue£¨75umwet sieve£© |
% |
¡Ü |
0.10 |
| lead
oxide£¨Pb£© |
% |
¡Ü |
0.037 |
| copper
oxide£¨Cu£© |
% |
¡Ü |
0.0002 |
| manganese
oxide£¨Mn£© |
% |
¡Ü |
0.0001 |
| 105¡ãC
volatile |
% |
¡Ü |
0.3 |
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Packaging: PE film bag
(internal) and plastic woven bag (external), 25 Kg per bag.
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