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Description:Features: 1) Vermiculite silicon sour saline mineral substance, glimmer clan times of living beings, main chemical composition 22 MgO.5 Al2O3.Fe2O3.22 SiO2.40 H2O molecular formula of the theory after roasting and expand its: (OH) 2 (MgFe) more than 2 (SiAlFe) 4 O104H2O 2, vermiculite is for kinds of layers of form structure material ore not original, there is moisture content not a small amount of layer, can anhydration burst and expand get original 4-15 of volume, form porous light body material after 900 - 950°C is heated. It insulates against heat, able to bear the performance, such as high temperature, insulating, preventing frostbite, anti-detonation, acidproof alkali corroding, sound insulation 2) Main use: vermiculite craft technic, special, extensive term building, energy-conservation, environmental protection, farming and animal husbandry, horticulture field a) Among construction, adapt to and expand vermiculite make loose to pack material, expand vermiculite products, expand vermiculite concrete mainly, used as the materials, such as light quality, keeping warm, insulating against heat, sucking the sound, firing prevention b) In agriculture and horticulture, used as nutrition and release the pharmaceutical, the soil regulates the base bed that pharmaceutical, chemical fertilizer, insecticide carrier and solution trained the crop, used in vegetables, flowers, fruit culture c) Used as taking out the absorbent of the harmful substance and ion xchangeability treatment pharmaceutical in environmental protection, become invalid in water treatment, quiet China of waste gas d) Car animal husbandry, expand vermiculite can use as fodder additive wait for. In addition, the vermiculite is also used for having no asbestos to rub materials, helps straining pharmaceutical