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Item
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Lithopone Specifications
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|
B301
|
B311
|
|
Superior Grade
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First Grade
|
General Grade
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Superior Grade
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First Grade
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General Grade
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Total amount of zinc and (Based on ZnS) %(m/m) ≥
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99
|
99
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Total Zinc amount (Based on ZnS) %(m/m) ≥
|
28
|
28
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|
Zinc Oxide, %(m/m) ≤
|
0.6
|
0.8
|
1
|
0.3
|
0.3
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0.5
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|
105 ℃ volatile, %(m/m) ≤
|
0.3
|
0.3
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0.5
|
0.3
|
0.3
|
0.5
|
|
Soluble in water, %(m/m) ≤
|
0.4
|
0.5
|
0.5
|
0.3
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0.4
|
0.5
|
|
Residue on sieve (63μm),%(m/m) ≤
|
0.1
|
0.1
|
0.1
|
0.1
|
0.1
|
0.1
|
|
Color(compared with standard sample)
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better
|
similar
|
slightly poor
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better
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similar
|
slightly poor
|
|
Alkalinity of water extraction
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Neutral
|
Neutral
|
Neutral
|
Neutral
|
Neutral
|
Neutral
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|
Oil absorption , g/100g ≤
|
14
|
10
|
|
Tinting power (compared with standard sample), % ≥
|
105
|
100
|
95
|
105
|
100
|
95
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|
Covering power (contrast ratio)
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no less than 5% of standard sample
(absolute value)
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no less than 5% of standard sample
(absolute value)
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Chemistry: white powder, indissoluble in water, no reaction with hydrogen sulphide and alkaline liquid. In acid solution, resolving into air hydrogen sulphide
.Application: Mainly used in paints and for making white paint and other light colour paints. Also can be employed in rubber, printing ink, varnished cloth, paper, enamel, leather and stationery. Lithopoen B-333 is a higher-class material mainly used for high-class paints and coats.
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