Good Price White Powder Synthetic Cryolite Synthetic cryolite is manufactured from hydrofluoric acid, sodium carbonate, and aluminium. Synthetic cryolite is used chiefly as a flux in the electrolytic production of aluminum from bauxite as it effectively lowers down the melting point of alumina. The price of synthetic cryolite price based on product capacity, and the purity that buyers need. ... Shanghai Yixin Chemical Co., Ltd.