A deep eutectic solvent is prepared by mixing a quaternary ammonium salt with metal salts or a hydrogen Bond donor such as urea to form a liquid with a melting point lower than the melting points of the individual salts.
Dear Judith U. Okoduwa, the following references deal with DES characterization. My Regards
https://www.researchgate.net/publication/317832681_Characterization_of_Deep_Eutectic_Solvents_for_Dispersive_Liquid-Liquid_Microextraction_for_Phenolics
https://doi.org/10.1016/j.fluid.2019.112249
https://link.springer.com/article/10.1007/s00216-019-02143-z
https://doi.org/10.1080/00032719.2016.1277533
https://doi.org/10.1021/acs.iecr.7b02382
https://www.omicsonline.org/proceedings/synthesis-and-characterization-of-novel-aminebased-deep-eutectic-solvents-for-co2-capturing-76614.html
https://www.shd-pub.org.rs/index.php/JSCS/article/view/4742/536
https://experts.umn.edu/en/publications/characterization-of-thermal-behavior-of-deep-eutectic-solvents-an
Dear Judith U. Okoduwa;
Attached files are very interesting for you.
With my best regards
Use density meter Anton Paar for density, optical contact angle for surface tension, stabinger viscometer or micro viscometer any one you have, and refractometer for refractive index. If you want to measure these at various temperatures, refer my publications.
Shahbaz, K., Mjalli, F.S., Hashim, M.A. and AlNashef, I.M., 2012. Prediction of the surface tension of deep eutectic solvents. Fluid phase equilibria, 319, pp.48-54.
@ Abdelkader Bouaziz @Doufnoune Rachida, @Muhammad Shuaib Shaik@Dr. azeez Barzinjy. Thank you so much for your response.
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