|
Intem
|
Index
|
|
Inorganic surface treatment
|
SiO2,AL2O3
|
|
Organic surface treatment
|
Yes
|
|
TiO2 content,%(m/m) ≥
|
93
|
|
Brightness ≥
|
94.5
|
|
Tint reducing power,Reynolds number,TCS ≥
|
1800
|
|
Volatile matters at 105℃,%(g/100g) ≤
|
0.6
|
|
Water soluble,% ≤
|
0.5
|
|
pH value of water suspension
|
6.5~8.5
|
|
Oil absorption value,%(m/m) ≤
|
20
|
|
Electrical resistance of aqueous extract,Ωm ≥
|
80
|
|
Residue on the sieve(45um mesh),%(m/m) ≤
|
0.02
|
|
Rutile content,% ≥
|
98.0
|
|
Whiteness,(Compared with standard sample)
|
No less than
|
|
Oil dispersible power,(Hegemann number) ≥
|
5.0
|
|
Index controlled by the company Gardner of powder
|
L ≥
|
99.8
|
|
b ≤
|
1.70
|
