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Typical Physical Properties
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Typical Physical Properties of Exfoliated Vermiculite
Notes :-
(a) Bulk density and water holding capacity vary with article size.
(b) Exchangeable ions are Mg+2 and Ca+2, sodium acetate saturation / ammonium acetate substitution method.
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| Color: | Light to dark brown | | Shape: | Accordion-shaped granule | | Bulk density (a): | 64-160 kg/cu m
4-10 lb/cu ft | | Moisture loss@110 °C (230 °F): | 4-10% | | pH (in water): | 6-9 | | Combustibility: | Non-combustible | | MOH Hardness: | 1-2 | | Sintering temperature: |
1150-1250 °C
2100-2280 °F | | Fusion point: |
1200-1320 °C
2200-2400 °F | | Cation exchange capacity (b): | 50-150 me/100g | | Specific heat: |
0.84-1.08 kJ/kgK
0.20-0.26 kcal/kgK
0.20-0.26 Btu/lb F | | Waterholding capacity (a): |
220-325% by wt
20-50% by vol |
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