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Minggu, 17 Maret 2013

PP indicator

maybe you know the indicator PP (Phenolptalein) for accid-base

may be you just  only know the PP in liquid form, but the indicator  PP is actually a white solid and  use only require just a little,

do you know how to make liquid PP indicator of solids??
the method to make PP liquid is very easy, indicator solution by dissolving 1 g PP +100 mL of ethanol.95%

we used ethanol as PP more soluble in ethanol than dissolved ith water, other than that ethanol has a polar , making it easier to delution on water will