Recrystallization Question?
 

How many mL of boiling water would I need to dissolve 25g of phthalic acid? Then when I cool it to 14 degrees celsius how many grams of phthalic acid would crystalize out?

I think I am making this question harder on myself than it needs to be.
Any help would be much appreciated! :D

My CRC says only that it's "slightly soluble" in water. Chemfinder.com says that the solubility at 20°C is <0.1 g/100 mL. I don't know if there is any reference that can give you this information. This website says that the solubility at 20°C is 0.574 g/100 ml:

http://www.inchem.org/documents/icsc/icsc/eics0768.htm

I don't know of any way to look up the solubilities of this substance in water at different temperatures. You'll have to figure it out yourself experimentally using the numbers I provided unless someone else knows how to find this information.