tongchem enterprise


Lithopone technical demand

Items
B301
B311
High grade
1st grade
standard
High grade
1st grade
standard
Total amount of zinc (Galculated as zinc sulfide and barium sulfate), %
99
99
Total amount of zinc (Galculated as zinc sulfide), %
28
30
Zine oxide, %
0.6
0.8
1
0.3
0.3
0.5
Volatile matter at 105oC,%
0.3
0.3
0.5
0.3
0.3
0.5
Matter soluble in water, %
0.4
0.5
0.5
0.3
0.4
0.5
Residue on sieve (63m)%
0.1
0.1
0.1
0.1
0.1
0.1
Color (than to standard sample)
High
Similar
Tiny lower
High
Similar
Tiny lower
Alkalinity of the aqueous extract
Neutrale
Oil absorption value, (g/100g pigment)
14
10
Achromic power (than to standard sample) %
105
100
95
105
100
95
Hiding power (comparative ratio)
Not lower than 5% of standard sample

 
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