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Determination of SiO2 in Ceramic Raw Materials with Silver Molybdate

ZHANG Xingfu  ZENG feng

(Basic Courses Department)

Abstact: By means of experiment,it is found that Arsenazo III used as the complexing titration indicator can be used as the sedimentating titration indicator in this deter­mining.According to the quantitative reaction of standard AgNO3 solution with Moot The quantity of MoO42- which exists in the form of Silico-Molyb-heteropoly acid Hg[Si(MoO42-)]，can be counted and then the contents of SiO2 in silicate molybdate.

Keywords: chemical analysis; silver molybdate; Silico-molyb-heteropoly; acid complexing titration


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