I don't know the answer to your question, but first you need to define your salt better. Is it the d-, dl-, or meso-tartrate? And is it the 1:1 salt, or the 1:2 salt (which would be called more accurately strontium hydrogen tartrate)?
Also, what do you call "dissolve"? The water solubility may be low, but if you want to just grow or refine your crystals it may be enough if you're patient (or you may need to work at higher temperature).
My Strontium tartrate crystal is l-tartrate compound.
i want to study the anti-bacterial study of my grown strontium l-tartrate crystal. for that i need solvant to prepare the solution of strontium l-tartrate. this tartrate is not soluble in water.
Usually you have systems to determine the solubility of compounds. Crystalline is really useful device to determine solubility curves. IT also can operate with solvent addition method. But does not work well for the compounds with very low solubilities (below 5 mg/mL ingiven solvent).
Strontium tartrate is a fairly rare compound. You have a much better chance of finding solubility data about calcium l-tartrate or d-tartrate (these two will behave the same way). The strontium salt is probably quite similar in its solubility behavior.