|
Technical Indexes
|
Excellent
|
First grade
|
Qualified
|
|
pre-cipitated barium sulfate content % ≥
|
98.0
|
97.0
|
95.0
|
|
Volatile matter(105°C) % ≤
|
0.3
|
0.3
|
0.5
|
|
Water-insoluble content%≤
|
0.3
|
0.3
|
0.5
|
|
Fe content %≤
|
0.004
|
0.006
|
-
|
|
PH(100g/Lsuspension)
|
6.5-9.0
|
5.5-9.0
|
5.5-9.5
|
|
whiteness
|
94
|
92
|
88
|
|
5um%≥
|
60
|
65
|
70
|
|
2um%≥
|
25
|
40
|
50
|
|
Powder size distribution 10um % ≥
|
80
|
85
|
90
|
|
Fineness (43umresidue on sieve) %≤
|
0.1
|
0.2
|
0.5
|
|
oil absorption g/100g
|
15-30
|
10-30
|
10-30
|
Application: Used in powder coating, painting, ink, rubber, pigment, storage battery, plastics etc.
Packing: 25kg PP bags, 25MT/20'FCL