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。
2
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。
3
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.