Vermiculite Products


Typical Physical Properties of Exfoliated Vermiculite

Colour:

Light to dark brown

Shape:

Accordian-shaped granule

Bulk density(a):


64 - 160 kg/cu m
1 - 10 lb/cu ft.
Moisture loss
@110°C (230°F):


4 - 10%
pH (in water):

6 - 9
Combustibilty:

Non-combustible
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):

200 - 325% by wt
20 - 50% by vol