1. Commodity:
LITHOPONE B301 28-30%
2. Specification:
Standard GB/T1707-1995
Grade Excellent
Total amount of zinc(calculated as Zinc Sulfide) %≥99
Total amount of Zinc (calculated as Zinc sulfide) %≥28
Zinc oxide %≤0.3
Volatile matter at 105 %≤0.3
Matter solube in water %≤0.3
Reside on sieve %≤0.1
Color(Comparing with standard sample) better
Alkalinity of the aqueous extractneutral 6-8
Oil absorption value, g/100g ≤10
Color elimination power (Comparing with standard sample) %≥105
Hiding power (Comparative ratio) %≥-5
3. Origin:
China
Index of Lithopone 30%
Item
B311
Ba+SO4(asZns)%
99%min
Zinc(asZns)%
28-30%min
ZincOxide%
0.6max
105degreeVolatile%
0.3max
WaterSoluble%
0.4max
ScreenResidues(63um)%
0.1max
OilAbsorption(g/100g)
14max
TintingStrength
105min
HidingPower(contrastratio)
Notlessthan5%standardsample
Color(comparewithstandardsample)
excel
SpecificGravityValue
4.1min
Features of Lithopone 30%
1)Awhitepigmentproducedbyprecipitationthroughfiltering,
heatingandquenchingworks
2)Hasmostlybeenreplacedbytitaniumdioxidewhichismore
durable,butitismuchcheaper.