Description
Bentonite – Fines Grade
Specifications
Typical Chemical (oxide) analysis (dry basis):
| SiO2 | 66.80% |
| A12O3 | 22.30% |
| Fe2O3 | 3.26% |
| CaO | 1.48% |
| MgO | 2.59% |
| Na2O | 2.48% |
| K2O | 0.49% |
| TiO2 | 0.48% |
| Mn3O4 | 0.01% |
| SO3 | 0.08% |
| P2O5 | 0.05% |
| BaO | 0.08% |
| Total | 100% |
Cation Exchange Capacity:
| Minimum | 70meq/100mg |
| Average | 76meq/100mg |
| pH | Average 10.2 |
Exhangeable Cations:
| Sodium | 65.60% |
| Calcium | 20.20% |
| Magnesium | 12.40% |
| Potassium | 1.80% |
Physical Properties:
| Grit Content | <3.0% |
| Total Moisture | Maximum 10.5% |
| Bulk Density | 1.2kg/1 |
| Water Absorption (w/w) | Minimum 650% |
| Average 740% | |
| Swell Index (m1/2mg) | Minimum 18 |
Sizing Analysis
| -2mm | 15% |
| -1.0 + 0.5 mm | 32% |
| -0.5 mm | 53% |
NOTE: THIS PRODUCT IS LOCAL DELIVERY ONLY within 25Km of GLENORIE, NSW.
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