Salicylic acid is poorly soluble in water, I dissolved in 65% ethanol but it is forming precipitation on storage. What to do? Which solvent is best?

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SILAS DERENZO

try methanol or ethyl acetate.

See the article:

Nordström F.L & Rasmuson A.C. Solubility and Melting Properties of Salicylic Acid J. Chem. Eng. Data 2006, 51, 5, 1668-1671

Udaya Khandavilli

You can change the solvent to MeOH instead of EtOH or you can increase the % Ethanol or store at the ambient conditions! It really depends on your purpose.

Rakesh Bhaskar

@ Udaya khandavilli thank you sir. I stored in 4 degree cold room. I use it as elicitor to treat in vitro shoots

Carlos Araújo Queiroz

Salicylic acid is highly soluble in propylene glycol; cf.: https://www.ingentaconnect.com/contentone/govi/pharmaz/2006/00000061/00000004/art00014

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