硅，几乎是众人尽知的半导体材料。用于电子工业的纯度很高的硅，是用自然界中硅石经电弧还原，或用四氯化硅经锌或氢气还原制得，然后提纯，并由多晶硅制取成单晶硅。硅胶，用于电力变压器和其它设备的吸湿剂，又是什么物质呢？硅胶并不是硅。其全名叫脱水硅酸凝胶。一般用偏 Silicon, almost everyone knows the semiconductor material. High purity silicon for the electronics industry is obtained by reduction of silica in nature by reduction of the arc or by reduction of silicon tetrachloride by zinc or hydrogen followed by purification and monocrystalline silicon from polycrystalline silicon. Silicone, moisture-absorbent for power transformers and other equipment, what is it? Silicone is not silicon. Its full name is dehydrated silicate gel. Generally use partial