1.Expanded vermiculite introduction :

Two kinds vermiculite : golden expanded vermiculite , silver expanded vermiculite
size : 0.3mm-1mm , 0.7-2mm ,2-4mm ,3-5mm ,4-8mm ,16-40mesh , 40-80mesh ,60-100mesh ,200mesh ,325mesh ,400mesh  
use : vermiculite board , gardening , horticulture ,fire-proof material , friction and sealing material  and others
packing : 15kg /bag , 25 kg /bag              

2.  Chemical properties of vermiculite :

Molecular formula	SiO2	MgO	AI2O3	Fe2O3	FeO	K2O	H20	CaO	PH	Loss in burning  800°C/Hour
										4.5-7.5
Content%	37-42	11-23	9-17	3.5-18	1-3	5-8	7-18	1-2	8-11

3.Expanded vermiculite usage :

It has already been used in many fields like construction materials ,heat-resistant materials ,sheet materials, painting, rubber, agriculture, forestry, nursery gardening ,forage, cultivation ,pharmacy, friction and sealing, metallurgy, etc.