Technical Data
| Product Group: | BENTONITE |
| Product: | ECCABOND N |
| Product Code | 3511000 |
DESCRIPTION
A sodium bentonite with high bonding properties when mixed with sand, and good swelling, gelling properties. It has a very good cationic exchange capacity. All bentonite is mined in the Heidelberg (WC) area.
MINERALOGICAL CONSTITUENTS
(approximate)
| Montmorillonite: | 94% |
| Quartz: | 5.5% |
| Mica: | 0.5% |
TYPICAL CHEMICAL ANALYSIS
| SiO2 | AI2O3 | Fe2O3 | TiO2 | CaO | MgO | K2O | Na2O | L.O.I. |
| 62,2 | 18,6 | 3,5 | 0,2 | 0,8 | 3,7 | 0,7 | 2,4 | 7,9 |
PHYSICAL PROPERTIES
(Typical)
| Colour (crude): | Grey – Fawn |
| Odour: | None |
| Appearance: | Powder |
| Moisture: | 8 – 12% (typical) |
| Specific Gravity: | 2,51 g/cm³ |
| Bulk Density: | 1,1 g/cm³ |
| Particle Size Distribution: | 15% retained on 150 µm |
| Grit: | 4,11% retained on 53 µm |
| pH ( 30g in 60ml water): | 9 – 10 |
| Swelling Index: | 25 ml / 2g |
| Water Absorption: | 663,1 (on sinter plate) |
| Cation Exchange Capacity : | 78,6meq / 100g |
| Viscosity Marsh Funnel: | Immediate: 26 seconds |
| Ten Minutes: 28 seconds |