脱硫液中の硫化水素含有量の測定
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脱硫液に溶解した硫化水素の含有量の測定、ヨウ素滴定法、得られた結果には他の硫化物も含まれているのか？例えば二酸化硫黄や硫黄エーテルなどですか？そうなると結果が大きくなりすぎるんじゃないですか。硫化物の測定もヨウ素滴定法、逆滴定です
新しいアンモニア溶液を加えると硫化亜鉛が生成し、ろ過して硫化亜鉛の沈殿を得て、ヨウ素による滴定を行えばよい。
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