Its particles have compact glass state surface due to the special creating condition at high temperature,and are not dissoluble in common acid(except for HF) and alkali solution.

• 微硅粉是硅铁合金和工业硅生产过程的副产品,特殊的高温生成环境使微硅粉颗粒形成致密的玻璃态表面,不溶于一般的酸(氢氟酸除外)和碱。