Micro silica ,also called silica fume or micro silica, is a byproduct of production silicon metal or ferrosilicon alloys. Silicon metal and alloys are produced in electric furnaces.The raw materials are quartz,coal and woodchips. The smoke that results from furnace operation is collected and sold as silica fume, silica fume consists primarily of amorphous(non-crystalline) silicon dioxide(SiO2),its average granule diameter is 0.15~0.20um,specific surface area is 15000~20000m2/kg,and it has extremely strong surface active.
Silicon fume Often alone or mix use production with other composition all sorts of products. This kind mineral have bibulous and add stiff character. These characteristics make silica is in housing materials, hairdressing things and food industry have extensive use.
Silica is the commonnest on the earth mineral. It is the component of sand and stone stone. Manufacturer makes natural silica powder or little grain. Some factories still produce imitation 2 oxidation silicon, but they come from silicon arenaceous. Natural or man-made silicon pink is in blame in eating category product very common.
Miniature diatom is reservation incrustation is one-celled adipose, also include 2 oxidation silicon. Their consist in in salt and fresh water ground floor. This kind of silica also is called without finalize the design silica, be used by wear grain or fine pink finally normally. 2 oxidation silicon can use diatomite in food or other product.
Quartz pink or frosting are silicon arenaceous heat to dissolve generation to extreme temperature. After be modelled through craftsman and cooling, these material can become glass. Paint, plastic, polyvinyl chloride glue and anti-corrosive coating includes silica powder. In these products, the utility of silica is thickener or stiffening agent.
A few cleaner and scour also include silicon powder. Shape of this kind of grain is mineral can use at attrition object surface. Silica scour can wash the dress with Yu Qing, tableware, or the part that should make washing powder. A few toothpaste also diatomite as attrition composition.
Silica cosmetic includes a slippery translucent powder, can absorb skin grease. This kind mineral it is low change should former, still be thought to have by a few people reduce furrow effect. Still the help in consumer buys silicon pink and adding lawn or soil retains moisture, even under the pest. But should know, inspiratory this kind of powder has the possibility that bring about serious lung to affect or causes cancer.
Because can be absorbed,be close to oneself weight the moisture of 50% , because this silicon pink is in,food and pharmacy industry also have effective use. The silicon pink that diatom stone forms is commonly used at coffee spouse, of farinaceous food and dressing fight agglomerate agent. Common taste moistureproof silica gel bag to also include silica part normally at medicines and chemical reagents or health care.
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