• .SEEMA. R
• Renuka Devi. K

The study of the properties of aqueous solution is very important in many areas of science. Surfactants are parts that lower the surface tension between two liquids. The effectiveness of fertilizers is increases with a addition of selected fertilizer by reducing their surface tension. Urea is a synthetic organic fertilizer provides more nitrogen for the growth of crops. The behaviour of urea in aqueous non-ionic surfactant (triton x- 100) solution was studied in terms of density, ultrasonic velocity and viscosity measurements at different temperatures (303K, 308K and 313K). The experimental values have been used to estimate the adiabatic compressibility (β), and solvation parameters. Using the hydration number, the method of obtaining the molar hydration number (nh), molal hydration number (nh’), apparent molal compressibility ("" _k), apperant molal volume ("" _v) and molar solvated volume ("" _s) are determined and the methodology is verified.

Apparent molal compressibility, apparent molal volume, molal and molar hydration number, ultrasonic velocity.

"EVALUATION OF HYDRATION NUMBER AND ITS ALLIED PARAMETERS OF UREA IN AQUEOUS TRITON X- 100 SOLUTIONS BY ULTRASONIC MEASUREMENTS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 2, page no.572-576, February-2019, Available :http://www.jetir.org/papers/JETIR1902276.pdf

"EVALUATION OF HYDRATION NUMBER AND ITS ALLIED PARAMETERS OF UREA IN AQUEOUS TRITON X- 100 SOLUTIONS BY ULTRASONIC MEASUREMENTS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 2, page no. pp572-576, February-2019, Available at : http://www.jetir.org/papers/JETIR1902276.pdf