Aggregation Behavior of Task‐Specific Acidic Ionic Liquid N‐Methyl‐2‐Pyrrolidinium Dihydrogen Phosphate [NMP][H2PO4] in Aqueous and Aqueous Salt Solutions

The effect of alkali salt (NaCl, NaBr, and KCl) addition on aggregate formation of N‐methyl‐2‐pyrrolidinium dihydrogen phosphate [NMP][H2PO4] ionic liquid in aqueous solution was determined using surface tension at 298.15K and conductance from 288.15 to 308.15K. The surface parameters such as critic...

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Bibliographic Details
Published inJournal of surfactants and detergents Vol. 22; no. 3; pp. 491 - 499
Main Authors Pal, Amalendu, Saini, Mohit
Format Journal Article
LanguageEnglish
Published Hoboken, USA John Wiley & Sons, Inc 01.05.2019
Subjects
Alkali salts
Electrical conductance
Micellization
N‐Methyl‐2‐pyrrolidinium dihydrogen phosphate
Surface tension
Thermodynamic parameters
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ISSN1097-3958
1558-9293
DOI10.1002/jsde.12232

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Summary:The effect of alkali salt (NaCl, NaBr, and KCl) addition on aggregate formation of N‐methyl‐2‐pyrrolidinium dihydrogen phosphate [NMP][H2PO4] ionic liquid in aqueous solution was determined using surface tension at 298.15K and conductance from 288.15 to 308.15K. The surface parameters such as critical aggregation concentration (CAC), adsorption efficiency, surface pressure, surface tension at CAC, minimum surface cover by a single molecule, and maximum area excess concentration were calculated from surface tension measurements with and without salts. The results show that [NMP][H2PO4] forms aggregates at lower concentrations and is more surface active than classical cationic surfactants.
ISSN:1097-3958
1558-9293
DOI:10.1002/jsde.12232