The content of isoniazid in its tablets was determined by using potassiumbromatemethod, but the indicator of ethoxychrysoidine was replaced by methyl orange.
以甲基橙代替乙氧基黄叱精指示剂,用溴酸钾法测定异烟肼片含量。
2
The method was based on the catalytic effect of nitrite ion on the oxidation fading reaction of methyl orange and bright green with potassiumbromate as oxidant in phosphoric acid medium.
In this paper, we reported a new method of bromination of acetophenone using potassiumbromate in phosphoric acid. Some factors that effect yield are also discussed.