vermiculite Specification | |
Vermiculite composition | 1.:is a mineraloid of hydrated laminar magnesium-aluminum- iron silicate. Its chemical composition greatly varies and chemical formation could be simplified as(Mg,Fe,Al)3(Al,Si)4O10(OH)2·4H2O.
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When heated: | When heated to a temperature of about 850-950°C, it instantly expands(exfoliates) up to 15-25 times as water flashing into steam, maximum 30 times its original bulk volume. There is a color change during expansion from golden brown into silver white depending upon the composition of the vermiculite and temperature. |
Application | 2.as being fireproof, heat insulating,sound and moisture absorbing,non-toxic, lightweight and disease free, it is widely used in construction, chemical industry, petroleum, electronics, light industry, environmental protection and as a medium of agricultural chemical products etc.
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characteristics | -PH 7 max. -Asbestos-free -Thermal conductivity: 0.045-0.06 Calorie/M -Unit weight: Approx.0.9kg/M3 -Tensile strength: 1,000-1,500kgs/CM2 -Hardness: 1-1.8
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.Exporting countries | USA,Germany,France,Italy,Mexico,Singapore,Malaysia,Japan, South Korea, Taiwan etc. The market share is growing rapidly and firmly.
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About our company | Shijiazhuang Mining Imp&Exp Trade Co.,Ltd. owns self import and export right. Our company has strong economic base.Now we have one sepiolite mine and one vermiculite mine.The mining capacity is 60,000 tons per year. Besides,our company has own sepiolite factory and vermiculite factory. The production capacity is 30,000 tons per year.
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