硅钼蓝分光光度法测定硅黄铜中的硅量  

MEASUREMENT OF SILICON CONTENTS IN SILICON COPPER WITH OPTICAL SPLITTING OF SILLCON MOLYBDENUM BLUES

作　　者：崔英姿[1] 李桂春[2] 

机构地区：[1]绥化师范专科学校 [2]哈尔滨师范大学

出　　处：《哈尔滨师范大学自然科学学报》2003年第1期66-68,共3页Natural Science Journal of Harbin Normal University

摘　　要：本文提出以硅钼蓝分光光度法测定硅黄铜中(含硅:1.00％～4.50％)硅的含量;硅黄铜试样以硝酸一氢氟酸溶解,硅与钼酸铵形成硅钼络离子,然后用硫酸亚铁铵作还原剂使硅钼络离子还原为硅钼蓝,借此进行分光光度法测定;实验表明:本方法操作简便,分析快速.测定准确度高.This paper discusses the measuring method for the silicon contents (1. 00%-4. 50%) in copper alloy. It is described that the sample of the silicon copper is solved by saltpeter and hydrofluoric acid, and then comes into silicon moly complex ion, which is reduced to the silicon molybdenum blues with reducer of ferrous ammonium sulfate, whereby to measure the silicon contents with the optical splitting. It is manifested that the method is operated simply with high speed and accuracy.

关 键 词：硅量 硅钼蓝分光光度法 硅黄铜 含量测定 硅钼络离子 硫酸亚铁铵 

分 类 号：TG146.11[一般工业技术—材料科学与工程] TG115.335[金属学及工艺—金属材料]