VERMICULITE hot sale

The name of Vermiculite from Latin, with a "worm" and "insect trace form" the meaning of vermiculite were heated to 200 DEG C to 300 suddenly will be along the c axis of the crystals to produce worm like peeling, thus it has gained its name. Vermiculite is a layered structure containing magnesium aluminum silicate water secondary metamorphic minerals, ore shape like mica, usually consist mainly of black mica (gold) by hydrothermal alteration and weathering, because of the heat expansion was loss of deflection shape patterns similar to leech, called vermiculite.

Vermiculite is a clay mineral montmorillonite with similar layered silicate. Generally formed by hydrothermal alteration or weathering of black mica. It can sometimes appear to like coarse biotite (this is biotite vermiculite, sometimes false) have become like fine soil. The vermiculite is heated to 300 DEG C, it can be expanded 20 times and bending. This is a bit like a leech vermiculite (commonly known as the leech), so it has such a name. Vermiculite is generally brown, yellow, dark green, like the oil sheen, heated into grey. Vermiculite can be used as construction materials, adsorbents, fire insulation materials, mechanical lubricant, soil conditioner and so on, a wide range of uses.

The main chemical formula for vermiculite (Mg, Ca) 0.7 (Mg, Fe, Al) 6.0[(Al, Si) 8.0] (OH4.8H2O). Common chemical formula (Mg2.36Fe0.48Al0.16) (Si2.72Al1.28O10 (OH) 2) (Mg0.32 (H2O) 4.32)

Vermiculite can be according to the stages can be divided into vermiculite and expanded vermiculite, according to color classification can be divided into golden vermiculite, vermiculite, vermiculite milky white silver white.

Vermiculite after calcination the volume expansion after the rapid expansion of 6-20 times, the proportion of 60-180kg/m3, has very strong heat insulation performance.