Description
Vermiculite is a layer-structured metamorphic rock of gibbsite silicate. Rich in magnesium, it comes from hot-liquid-eroded or weathered phlogopite. Specification
a. Vermiculite-B model: 0.3mm-1mm, 07-2mm,1.4mm-4mm
b. Vermiculite for board, gardening, fire-proof: 1mm-3mm,2mm-4mm,3mm-5mm,5mm-8mm
c. Vermiculite for friction and seal :16mesh-40mesh,40mesh-80mesh 60mesh-100mesh,200mesh.325mesh,400mesh
d. Vermiculite -H model: 0.3mm-1mm, 1.4mm-4mm,0.7mm-2m
Chemical properties of vermiculite
Chemical quota: Mg x (H2O) (Mg3-x) (ALSiO3O10) (OH2)
Molecular
formula SiO2 MgO AI2O3 Fe2O3 FeO K2O H20 CaO PH Loss in burning 800°C/Hour
Name Silicon
dioxide Magnesium
oxide Aluminum
trioxide Iron
trioxide Iron
oxide Potassium
oxide Hydrogen
oxide Calcium
oxide PH
4.5-7.5
Content% 37-42 11-23 9-17 3.5-18 1-3 5-8 7-18 1-2 8-11
Physical properties of Vermiculite
Vermiculite sheet Density Expanded vermiculite Porosity Hard-ness Melting
point Compressive
resistance Index of
refraction Moisture
content Moisture
absorbency Anti
congelation Anti microbial Corrosion
resistance
1.Relative humidity 100% 24H
2. Frozen and melted for 15 minutes in 20 under zero, its size won’t change
Norms of Vermiculite Flakes (standards JC/T810-1996) Categories No.1 No.2 No.3 No.4 No.5 No.5
Grain Size mm 8-16 4-8 2-4 1-2 0.5-1 < 0.5
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, poisonous less and odorless, low hardness, bur
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Vermiculite
