Inspection report
Product: barium sulphate precipitate
|
ITEMS |
GB/T2899-1996
Fine Grade |
INDEX |
|
Fine Grade |
First Grade |
Powder Coating Grade |
Emulsion Grade |
Modified Super-fine Grade |
Refined Grade |
|
BaSO4(as per dry),%,≥ |
98.0 |
98.0 |
98.0 |
98.5 |
97.0 |
96.0 |
98.0 |
|
Volatility at 105℃,%≤ |
0.30 |
0.15 |
0.20 |
0.10 |
0.10 |
0.20 |
0.15 |
|
Solubles in water ,%,≤ |
0.30 |
0.20 |
0.25 |
0.18 |
0.30 |
0.50 |
0.20 |
|
Fe,%,≤ |
0.004 |
0.003 |
0.004 |
0.002 |
0.002 |
0.003 |
0.003 |
|
Whiteness,%,≥ |
94 |
96 |
95 |
96 |
96 |
96 |
96 |
|
Oil absorption, g/100g |
15-25 |
15.5-20 |
15-20 |
15.5-18 |
15.5-20 |
20-28 |
15.5-20 |
|
PH value (100g/L suspension) |
6.5-9.0 |
6.5-9.0 |
6.5-9.0 |
6.5-9.0 |
6.5-9.0 |
6.5-9.0 |
6.5-9.0 |
|
Residue on sieve of 45um, % ≤ |
0.20 |
0.10 |
0.20 |
0.06 |
0.06 |
0.02 |
0.01 |
|
Particle Size distribution |
≤10um, %,≥ |
80.0 |
95.0 |
90.0 |
98.0 |
98.0 |
98.0 |
99.8 |
|
≤5um, %,≥ |
60.0 |
85.0 |
80.0 |
90.0 |
90.0 |
95.0 |
98.0 |
|
≤2um, %,≥ |
25.0 |
60.0 |
60.0 |
60.0 |
60.0 |
70.0 |
75.0 |
*The particle size distribution is tested by the HELOSIBF-MAGIC type laser particle size analysis instrument of the German sympatec company.
- PACKING: 25kg/50kg/500kg/1000kg net each in P.P woven bag lined with P.E bag，or in terms of customers' requirements.
- PROPERTY: Colorless prismatic crystal shown as amorphous white powder; hardly soluble in water, ethanol and acid; easily forming lumps in dry air.
USES: Mainly used for paint, printing-ink, textile, pigment and pottery industries, also used as coatings on the surface of rubber, plastics, photo-paper etc. |
