zinc oxide  properties

White crystal powder, Odorless, turns into yellow when heated, and turns back to white when cooled. Soluble in acid, sodium hydroxide, ammonium chloride, insoluble in water, ethanol and ammonia. 
Zinc oxide specification

ITEM	SPEICIFICATIONS	RESULT
Appearance	WHITE POWDER	WHITE POWDER
Zinc oxide(dry basis) %	99.7%MIN	99.82
Metal Zinc %	NO	NO
Lead oxide % ≤	0.037	0.027
Manganese oxide % ≤	0.0001	<0.0001
Copper oxide % ≤	0.0002	<0.0002
Matter insoluble in HCl %	0.006	0.004
Loss on ignition % ≤	0.2	0.1
Residue on 45 μm sieve 320 % ≤	0.10	0.078
Matter soluble in water % ≤	0.10	0.070
Matter volatile at 105 ℃ % ≤	0.3	0.1

Zinc oxide powder usage:

1.As reinforcing agent and surfactant in rubber or cable industry

 

2.Mainly used as white pigment, rubber vulcanization agent, organic synthesis catalyst, desulfurization agent, 
3.used as a matrix of benchmark analysis reagent, the fluorescent agent and light-sensitive materials;

 

4.Used for wet electrostatic photocopying, dry transfer printing, laser fax communication, electronic computer records of static   electricity;'

 

5.Used as a medicine, convergence for making ointment or adhesive plaster.

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