Overview
Natural property of viscosity and thixotropic in bentonite makes suitable to use for paper processing to avoid agglomeration in particle distribution.
Ultra fine bentonite powder under stringent quality controls having lowest sand content improves paper quality and develops good paper pulp. Being good filtering agent it helps to drain fast.
SPECIFICATIONS FOR PAPER GRADE BENTONITE POWDER
GRADE: BENTO – 325
Physical Properties
| Parameters | Specifications |
| 1. Settled solids | 3 – 5% |
| 2. Color | Creamish yellow |
| 3. Color (brightness) | 40 – 45% |
| 4. pH | 8.5 – 10.5 |
| 5. Cation exchange capacity | 90 – 100 meq |
| 6. Density | 0.9 – 1.1 g/cc |
| 7. Particle size < 45 micron (wet) | 0.5% max |
| 8. Particle size < 20 microns (wet) | 1% max |
| 9. Moisture | 8 – 12% |
| 10. Al2O3 | 17 – 21% |
| 11. Fe2O3 | 8 – 12% |
De-inking Grade Bentonite
Physical Properties
| Parameters | Specifications |
| 1. Marsh funnel viscosity @ 6% bentonite | 38 sec min. |
| 2. pH value | 9.4 – 10.5 |
| 3. Cation Exchange Capacity | 90 – 100 meq |
| 4. Particle size < 45 micron (wet) | 2% max |
| 5. Moisture | 8 – 12% |
| 6. Color | Creamy yellow |
| 7. Density | 0.9 – 1.10 gm/cc |