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The indirect method:
The molecular formula
ZnO
Molecular weight
81.38
Nature
White powder, non-toxic, odorless. Amphoteric oxide, soluble in acid, alkali and ammonium chloride solution, insoluble in water and ethanol. Can absorb carbon dioxide and water in the air. Heating to 1800 ℃ sublimation, temperatures in yellow, white and recovery after cooling, with its basic, thus to paint with oils modulation, coloring and hiding capacity.
Appearance
White powder
The main technical indicators
High quality accords with GB/T3185-92 (in percentage)
Item
I
II
III
Zinc Oxide (dry product) ≥
99.7
99.7
99.7
Metal (Zn) ≤
No
No
No
Lead oxide (Pb) ≤
0.037
0.06
0.1
Manganese oxide (Mn) ≤
0.0001
0.0001
0.0001
Copper oxide (Cu) ≤
0.0002
0.0002
0.0002
Hydrochloric acid insoluble ≤
0.006
0.01
0.01
Ignition loss ≤
0.2
0.2
0.2
Sieve (320 mesh) ≤
0.1
0.1
0.1
105 ℃ volatiles ≤
0.3
0.3
0.3
Use
As a natural rubber in rubber industry, synthetic rubber and latex vulcanization activity agent, also used as reinforcing agent and colorant. This product is the most important inorganic active agent. Used in paint, ink, varnished coloring. Dyeing and printing industry for printing materials. In addition, for the glass and glaze production etc..
Storage
Should be stored in a cool, dry place sealed.
Packing
Plastic woven bag lined with plastic bag, net weight 25 kg per bag.
The direct method:
The molecular formula
ZnO
Molecular weight
81.38
Appearance
The white amorphous powder.
The main technical indicators
(in percentage) with GB/T3494-1996
Grade
Rubber
Rubber
Paint
Paint
Paint
Project indicators
ZnO-X1
ZnO-X2
ZnO-T1
ZnO-T2
ZnO-T3
Color (comparing with standard sample)
--
--
Meet the standard
Meet the standard
Meet the standard
Zinc Oxide (dry product) ≥
99.5
99
99.5
99
98
Lead oxide (PbO)% ≤
0.12
0.2
--
--
--
Cadmium oxide (CdO)% ≤
0.02
0.05
--
--
--
Copper oxide (CuO)% ≤
0.006
--
--
--
--
Manganese (Mn)% ≤
0.0002
--
--
--
--
Metal (Zn)% ≤
No
No
No
--
--
Hydrochloric acid insoluble% ≤
0.03
0.04
--
--
--
Loss on ignition% ≤
0.4
0.6
0.4
0.6
--
Water soluble matter% ≤
0.4
0.6
0.4
0.6
0.8
Sieve (320 mesh) wet sieving% ≤
0.28
0.32
0.28
0.32
0.35
Moisture% ≤
0.4
0.4
0.4
0.4
0.4
Covering over / M 2 ≤
--
--
150
150
150
Oil absorption% ≤
--
--
18
20
20
The achromatic% >
--
--
100
95
95
Use
For the rubber, paint, enamel, glass, ceramics and other chemical industry. Low Zinc Oxide for lithopone, ceramics and other industrial use.
Storage
Should be stored in a cool, dry place sealed.
Packing
Plastic woven bag lined with plastic bag, net weight 25 kg per bag.