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ชุดทดสอบฟีนอล์ฟธาลีน,อัลคาลินิตี้ (0.0-10.0 gpg ,0.0-20.0 gpg)

HI 38013 Phenolphthalein and Total Alkalinity Test Kit Product Description: In this case the phenolphthalein alkalinity is determined by neutralizing the sample to a pH of 8.3 using a dilute sulfuric acid solution and a phenolphthalein indicator. Since bicarbonate ions can be converted to carbonic acid with additional sulfuric acid, the phenolphthalein alkalinity measures total hydroxide ions, but only half ... Read More »

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