利用无水碳酸钠及硼酸混合试剂熔解试样,利用铬(Ⅱ)还原液还原,硫酸高铁铵滴定,测定钛的含量。
Mixed reagent of anhydrous soda and boric acid is used to dissolve the sample , Cr (ⅱ) reduction solution is used to deoxidize , and ( NH 4 ) Fe 2 ( SO 4 ) 3 is used to titrate , thus the Ti content is determined .