Solvodynamics of Benzene and Water Phases by DTAB, MTOAC, TMSOI and Orcinol Studied with Interfacial Tension, Surface Tension and Viscosity Measured with Survismeter

Year 2008, Volume: 11 Issue: 4, 181 - 186, 01.12.2008

Man Singh , Vinod Kumar

https://izlik.org/JA95HS74DC

Abstract

Both benzene and water immiscible phases when mixed together develop an energetic interface that remains tense due to individual surface tensions. Physics of a tense interface does equilibrate tensional forces to have an optimized surface force which is denoted as Interfacial Tension (IFT, mN/m). The IFT between water and benzene with addition of surfactants: dodecyltrimethylammonium bromide (DTAB), trimethylsulfoxonium iodide (TMSOI), methyltrioctylammonium chloride (MTOAC) and 3,5-dihydroxytoluene monohydrate (Orcinol) critically decrease to 15.69, 12.86, 10.59, 8.36, 2.97 mN/m for DTAB , TMSOI, water, orcinol, MTOAC respectively. This lowering of IFT infers a higher mutual miscibility (MM) of the phases denoted as wetting. The DTAB and orcinol increased surface tension of water from 71.25 to 79.55 and 72.70 mN/m respectively at 304.65 Kelvin temperature due to stronger cohesive forces.

Keywords

DTAB , interfacial tension , π-conjugation , mutual miscibility , buoyancy , inductive effects , steric effects , alkyl chains