Densities and Speeds of Sound of Antibiotic Drug Chloramphenicol with L-Leucine and Glycyl-L-leucine in Aqueous Medium at T = (288.15-318.15) K: A Volumetric, Ultrasonic, and UV Absorption Study Kumar, H.; Behal, I.; Journal of Chemical & Engineering Data 2016, 61, 3740-3751