Vermiculite

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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 :

Element	Percent by Weight
SiO₂	38-46
AL₂O₃	10-16
MgO	16-35
CaO	1-5
K₂O	1-6
Fe₂O₃	6-13
TiO₂	1-3
H₂O	8-16
Other	Other

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)

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