The new technology for the preparation of cryolite from fluosilicic acid and ammonium hydrocarbonate is introduced.
介绍了氟硅酸、 碳酸氢铵制备冰晶石的新工艺。
The new technology for the preparation of cryolite from fluosilicic acid and ammonium hydrocarbonate is introduced.
介绍了氟硅酸、碳酸氢铵制备冰晶石的新工艺。
High reinforced white carbon black is prepared by using phosphate fertilizer's by-product fluosilicic acid as raw material and ammonia water as ammonia analytical agent.
