Silicon Determination from Chloride Potassium inthe Presence of Hydrofluoric Acid AITranslate

1王永奉.分析化学(下册)[M].北京:地质出版社,1996.71.

2王肇信 幸良佐 曾芳屏.钽铌冶金学[M].北京：稀有金属冶金学会,1998.232-254.

3李俊义.分析化学[M].北京:高等教育出版社,1981.121.

1阎永胜,魏家友,史克全,周晓光,谭振江.SiO_3^(2-)存在下ARS-Cr(Ⅲ)显色体系测定Cr(Ⅲ)[J].理化检验：化学分册,1995,31(2):98-98. 被引量：1

Basic Information:

DOI：

Chinese Library Classification Number:O657.3[理学—分析化学]

Citation Information:

Soluble silicate is dissolved in hot water from the trial sample,then hydrofluoric acid is added to dissolve insoluble silicate.At pH=1.5～2.0,silicate ion and ammonium molybdate becomes the yellow silicon-molybdenum heteropoly acid and is reduced into silico-molybdenum blue by the reductant.The resultant material shows maximum absorption peak at 810 nm,the apparent mol light absorption coefficient is 1.2×10~4 L/(mol·cm ),content ranges 0～100 μg/50 ml, as conforms to Beer's Law.The method can be directly used for total silicon determination from commercial and reagent chloride potassium.