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Study of Solubility Efficiency of Polycyclic Aromatic Hydrocarbons in Single Surfactant Systems
Author(s) -
Lakra Jyotsna,
Tikariha Deepti,
Yadav Toshikee,
Satnami Manmohan L.,
Ghosh Kallol K.
Publication year - 2013
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-013-1507-8
Subject(s) - chemistry , anthracene , naphthalene , solubility , pulmonary surfactant , cationic polymerization , solubilization , partition coefficient , surface tension , micelle , hydrocarbon , polycyclic aromatic hydrocarbon , critical micelle concentration , pyrene , aqueous solution , organic chemistry , thermodynamics , biochemistry , physics
Water solubility enhancements of two polycyclic aromatic hydrocarbons i.e., naphthalene (Naph) and anthracene (Anth) in single surfactants system have been measured by UV–VIS‐Spectrophotometer. The relationships between solubilizing capacity and their solubilization efficiency towards polycyclic aromatic hydrocarbons (PAH) have been quantified and discussed in terms of the molar solubilization ratio (MSR), the micelle‐water partition coefficient ( K m ) and standard free energy of solubilization (Δ G ° s ). The micellar and surface properties of some cationic and anionic surfactants have been investigated by conductivity, surface tension and fluorescence measurements at 300 K. Above the CMC, maximum solubilization occurs in cationic surfactants where as the solubilization is least in the presence of anionic surfactants. The negative value of Δ G ° s shows spontaneity of the solubilization process. The MSR values are larger in naphthalene than anthracene (Naph > Anth). The present studies provide valuable information for the selection of surfactants for solubilizing water‐insoluble compounds.