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1.CO2を被測定液体に、沈降発生時はCa(OH)2 2.少量の炭酸ナトリウムを入れて測液、発生瀋殿はCa(OH)2 同じ品質の飽和溶液を蒸発させ、結晶の析出量が少ないCa(OH)2です。 4.少量の硫酸を加え、沈殿を生成するCa(OH)2
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