Premium
Ultrasonic Study of Basic α ‐Amino Acids in Different Acetate Salt Solutions at Different Temperatures
Author(s) -
Siddique Jamal Akhter,
Naqvi Saeeda
Publication year - 2011
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201190139
Subject(s) - chemistry , molality , isentropic process , compressibility , aqueous solution , acoustic impedance , sodium acetate , potassium , intermolecular force , ultrasonic sensor , sodium , thermodynamics , chromatography , organic chemistry , molecule , physics , acoustics
The ultrasonic velocity ( U ), has been measured for three α ‐amino acids, namely L ‐lysine monohydrochloride, L ‐arginine and L ‐histidine in solutions (1 mol/L aqueous) of sodium acetate (SA), potassium acetate (PA) and calcium acetate (CA) at different temperatures (303.15, 308.15, 313.15, 318.15 and 323.15 K). With the help of these results various ultrasonic derived parameters, viz . isentropic compressibility ( κ s ), change in isentropic compressibility (Δ κ s ), relative change in isentropic compressibility (Δ κ r ), specific acoustic impedance ( Z ), relative association (RA), and apparent molal compressibility ( ϕ K s) have been estimated. The results have been interpreted in the light of intermolecular interactions between solute and solvent.