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