Technical Specification : GB/T1707-86
Item |
Standard (B301) |
Standard (B302) |
First-Class Product |
Second-Class Product |
First-Class Product |
Second-Class Product |
BaSO4+Zn (as ZnS)%(m/m) ≥ |
99 |
--- |
99 |
--- |
Zinc (as ZnS) (m/m)%≥ |
28 |
28 |
28 |
28 |
Zinc Oxide %(m/m) ≤ |
0.6 |
0.7 |
0.3 |
0.4 |
105°C Volatile%(m/m)≤ |
0.3 |
0.3 |
0.3 |
0.3 |
Water Soluble%(m/m) ≤ |
0.4 |
0.5 |
0.4 |
0.5 |
Screen Residues (63μm Mesh) %(m/m) ≤ |
0.1 |
0.1 |
0.1 |
0.1 |
Color(Compared with Standard) |
Approximation |
Alkalinity of Water Extract |
Neutral |
Oil Absorption g/100g ≤ |
14 |
14 |
11 |
11 |
Color Killing (Compare with Standard) %≥ |
105 |
Cover Rate (Ratio) |
Not less than 5% standard plot |
Molecular Formula: ZnS+BaSO4
Molecular Weight: 330.80
Properties: A white pigment, Relative density: 4.136-4.39, Insoluble in water.
Not react with sulfuric acid and alkaline solution of hydrogen. Decompounds into hydrogen sulfide gas, easily oxidized in air, Lumps because of humidity, high cover rate.
Application: Inorganic white pigment, Widely used for the white paint such as polyolefin, vinyl resin, ABS resin, polystyrene, polycarbonate, nylon, POM, plastic, paint and ink. For the coloration of the rubber, cloth, leather, paper, colored enamel, etc.
Package: 50 kg lined with plastic bag, coat plastic woven bag
