I have project on usnic acid, but my problem that it does not soluble in water , what is the solution???

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SILAS DERENZO

You have to find a solvent that dissolves usnic acid AND you can use in your work.

Read the paper of Ju-qing JinYong RaoXiao-li BianAi-guo ZengGuang-de Yang:

Solubility of (+)-Usnic Acid in Water, Ethanol, Acetone, Ethyl Acetate and n-Hexane

Journal of Solution Chemistry

June 2013, Volume 42, Issue 5, pp 1018–1027

Muna Omer Alamoudi

thnx SILAS DERENZO