Literature says, its soluble in isopropanol. Personally, I had a hard time with isopropanol, and I believe its solubility is quite limited. I used Al isopropoxide in toluene suspension instead. I do not know what kind of sol-gel process you are planning, to synthesize what, but I was using this suspension for controlled hydrolysis in water-in-oil reverse microemulsions. You can refer to my paper attached.
Another concern is "low temperature" as per your reuirement, which will further limit its solublity in toluene as well as isopropanol, I believe. Try it out an please share your results with me too.
Hope this helps. Cheers.
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