Is it phenolphtalein or what? if it is phelnophtalein, it is a colorless solid or pink in alkaline solution. Used as an acid base indicator
What will happen if it is mixed with limewater?
well i'm not sure about that. i think if it mixed with lime water then it will turn the color of the lime water from to show how much alkaline is the lime water
i think you better ask your teacher because im not sure if im correct or not
sorry for the mistakes
anyway thx