α-Fe_2O_3在酸中溶解性能的研究

A study on the dissolution efficiency of α-Fe_2O_3 in acid

目的 比较不同工艺条件下制备的α Fe2O3在酸中的溶解性能。方法 采用重量法测定α Fe2O3溶出率。结果 经灼烧过的α Fe2O3在热的盐酸、硫酸 氢氟酸、硫 磷混合酸中能不同程度地溶解。在6mol/LHCl中微沸约1h时,α Fe2O3的溶出率处于稳定状态。结论 灼烧后的α Fe2O3在热的盐酸溶液中具有不同程度的溶解。

AimComparisons of dissolution efficiency of α-Fe_2O_3 in acid,which was prepared under different process conditions,was studied. MethodsThe dissolution efficiency of α-Fe_2O_3 in acid was determined by Gravimetric method. Results The results showed that the burnt α-Fe_2O_3 could be dissolved at different degrees in hot hydrochloric acid, sulfuric acid-hydrofluoric acid and sulfuric acid-phosphoric acid. The dissolution efficiency of α-Fe_2O_3 keeps stable in 6 mol·L^(-1) hydrochloric acid as it is boiled for about 1 h.ConclusionThe burnt α-Fe_2O_3 in hot hydrochloric acid has various degree dissolution.