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We are counted amongst the dependable Vermiculite insulation manufacturers and suppliers in india. The unmatched quality and high content of respective compounds has made the vermiculite mineral ideal for various industrial applications. The exfoliated vermiculite offered by us is extensively demanded as no alternative is available in terms of quality performance. The exfoliated vermiculite is also available in the array in varied grades meeting the requirements of the applications and specifications provided by the clients. Moreover, customers are eased with the availability of the vermiculite minerals at the most reasonable prices. chemical formula : (mg, ca, k, fe11)3 (si, al, fe111)4o10(oh)2o4h2o chemical analysis : elementpercent by weightsio238-46al2o310-16mgo16-35cao1-5k2o1-6fe2o36-13tio21-3h2o8-16otherother.
Physical Properties Of Exfoliated Vermiculite
(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. | |
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 |
Particle Size
Size | Size | Size | Densities | Densities | Equivalent names/designations | Equivalent names/designations |
---|---|---|---|---|---|---|
mm | in | in | kg/cu | mb/cu ft | System A | System B |
16 | 5/8 | down | 56-72 | 3.5-4.5 | NA | Premium (6) |
8 | 5/16 | down | 64-85 | 4.0-5.0 | 1 | Large (4) |
4 | 5/32 | down | 72-90 | 4.5-5.5 | 2 | Medium (3) |
2 | 0.08 | down | 75-112 | 4.7-7.0 | 3 | Fine (2) |
1 | 0.04 | down | 80-144 | 5.0-9.0 | 4 | Superfine (1) |
0 | 0.02 | down | 90-160 | 5.6-10.0 | 5 | Micron (0) |