Changchun sales vermiculite, horticultural vermiculite, vermiculite fire

Vermiculite products: product categories vermiculite gold, silver and white vermiculite; varieties vermiculite flakes, vermiculite, horticultural vermiculite, expanded vermiculite mix.

Main models :1-3mm ,2-4mm ,10-20 ,20-40 mesh mesh-60 mesh ,80-40 and 120 mesh and so on.

First, the nature and structure of vermiculite

Vermiculite is a layered structure of magnesium aluminum silicate water secondary metamorphic minerals, like mica ore outside, usually black (K) mica by hydrothermal alteration or weathering from, because heat dehydration deflection when the expansion was like, shape resembles a leech, it said vermiculite.

The chemical formula of vermiculite M g × (H2O) [Mg3 × (AlSiO3O10) (H2O)]

Chemical composition:

Formula SiO2 MgO Al2O3 Fe2O3 H2O CaO PH

Name three alumina silica magnesia three calcium oxide water oxidation

Content% 37-4211-239-17 3.5-15 5-111-27-1

Divided by stage of vermiculite vermiculite and expanded vermiculite ore, can be divided by color golden vermiculite, vermiculite silver, white vermiculite.

Vermiculite ore roasting at high temperatures the rapid expansion of its volume can be 8-20 times the proportion after expansion 130-180kg/m3, has a strong thermal insulation properties.