摘要
文章概述了几种常用的测定硫酸锰的方法,分析了各种方法的反应原理和各种方法的优缺点,重点研究了三价锰法,即在磷酸介质中,于220～240℃下,以硝酸铵作氧化剂,把硫酸锰的Mn2+氧化至Mn3+,再用硫酸亚铁铵标准溶液滴定生成的Mn3+的氧化还原滴定法,并讨论了该法氧化反应温度的控制、氧化剂的选择和氧化剂的用量等问题。
The paper described some common determination methods of manganese sulfate, analyzed their reaction principle and advantages or disadvantages. Emphatically studied the trivatent manganese determination method, which used ammonium nitrate as oxidant oxide Mn2＋ to Mn3＋ in phosphoric acid medium on temperature 220-240 ℃, then used ammonium ferrous sulfate standard solution to titrate generated Mn3＋. The paper also discussed control of oxidation reaction temperature, selection and amount of oxidant and others question when using this method.
出处
《广东化工》
CAS
2008年第6期127-129,共3页
Guangdong Chemical Industry
关键词
硫酸锰
测定
方法
manganese sulfate
determination
method
