Vermiculite
Physical properties before expanding:
Appearance:exfoliated,flake or superposed flake.It contains 10,000 slices in the thick of 2.54cm.
Luster:pearl luster,grease luster,no luster,surface dinginess and various luster.
Color:goden yellow,brown,brown and green,dark green,black,variedness and striation white.
Bulk density:2.2-2.8 g/cm3
Hardness:1-1.5
Bulk density:1,100-1,200 kg/m3
Melting point:1,320-1,350 C degree
Intensity of pressure:100-150 Mpa
Moisure:7% Appr.

Physical properties after expanding:

Grade
size (mm)
Bulk density (kg/m3)
water absorption (%)
impurity (g/m3)

1
>4
145
475
<3

2
2.5-4
190
450
<3

3
<2.5
200
420
<4



Primary chemical compositions:


Compositions
SiO2
Al2O3
MgO
Fe2O3
CaO
PH
H2O


Contents:(%)
37-42
9-17
11-23
5-18
0.5-0.8
8-11
<1



Szes of Vermiculite:
Non-expanded standard

types
No.3
No.4
No.5
20 M
32 M
70 M

sizes
3.5-7mm
1.5-3.5mm
<1.5mm
+900ª¦,<3%
+710ª¦,<4%
+250ª¦,<5%



Expanded standard

types
sizes

5 M
<5mm

10 M
<2mm

12 M
<1.5mm

20 M
+900ª¦,<5%

40 M
+450ª¦,<5%

100 M
+150ª¦,<5%

200 M
+75ª¦,<5%

325 M
+45ª¦,<5%

1,250 M
+10ª¦,<10%.



Bulk Bag or 25 kg plastic bag.