Product Details

hot sale golden crude vermiculite unexpanded vermiculite

expanded vermiculite

size : 6-12mm 3-6mm 2-4mm 1-3mm 16-40mesh 20-40mesh 40-80mesh 60-100mmesh200mesh 325mesh 400mesh (Under the standards of JC/441-1996)

Chemical quota: Mg x (H2O)(Mg3-x)(ALSiO3O10)(OH2)

Molecular
formula

SiO₂

MgO

AI₂O₃

Fe2O3

FeO

K₂O

H₂0

CaO

Loss in buring 800°C/Hour

Name

Silicon
dioxide

Magnesium
oxide

Aluminium
trioxide

Iron
trioxide

Irnon
oxide

Potassium
oxide

Hydrogen
oxide

Calcium
oxide

4.5-7.5

Content%

37-42

11-23

9-17

3.5-18

1-3

5-8

7-18

1-2

7-8

Physical properties of Vermiculite

Vermiculite sheet Density	Expanded vermiculite Porosity	Hard-ness	Melting point	Compressive resistance	Index of refraction	Moisture content	Moisture absorbency	Anti conge-lation	Antibio-ticity	Corrosion resistance
Kg/m3	Kg/m3		°C	Mpa	Ng=1.525-1.561	%	%
1100-1200	110-280	1-1.5	1320-1370	100-150	Ng=1.545-1.581	7	< 2	good	good	Alkali- resitant

1.reletive humidity 100% 24H 2. Frozen and melte for 15 minustes in 20 under zero, it’s aize won’t chenge

Norms of raw vermiculite (Implementation standards JC/T810-1996)

Categories	No.1	No.2	No.3	No.4	No.5	No.5
Size mm	8-16	4-8	2-4	1-2	0.5-1	< 0.5

Sand contend %		≤10	≤12	≤15	≤15-20
Expansion coefficient		8multiples	≥7-8mutiples	>7	6.5-7

Main Use and Functions:

Jinli Minerals is the first in North China to set up an advanced digital thermostat to cool, select, winnow and grade its products .Jinli has produced and developed many products ,which have such advantages as lighter, easy to reduce high-temperature recession heat and cold and corrosion resistant, better ventilation and water preservation , poisonousless and odorless, low hardness, burning-avoidance.

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