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用含溴化钾、硫酸的甲基橙溶液,作氯化氢的吸收液,可以避免三价铁离子及氧气的干扰,来代替用间接碘量法测定氯化氢中游离氢的方法,克服间接碘量法游离氢偏高的现象。
Instead of using indirect potassium iodide method to determine free hydrogen in hydrogen chloride by using potassium bromide and sulfuric acid methyl orange as absorption solution of hydrogen chloride to avoid the interference of ferric ion and oxygen, High free hydrogen phenomenon.