Synergistic behavior of SLS-OPE-10 binary mixtures at their CMC
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Akshaya Ravindra Chavan
Akshaya Ravindra Chavan is a doctoral student at the Institute of Chemical Technology, Mumbai, India.
Sunil S. Bhagwat is a Professor of Chemical Engineering at the Institute of Chemical Technology, Mumbai India. His area of work is Interfacial Science & Engineering and Energy & Exergy Engineering.
Abstract
The micellation behaviour of mixtures of sodium lauryl sulphate (SLS) and octylphenol ethoxylate-10 (OPE-10) was investigated using tensiometry and dye solubilisation. The interaction parameters for the system were determined using Rubingh’s model for non-ideality and the adsorption parameters were calculated. The surfactant mixture was found to behave synergistically in terms of CMC reduction and dye solubilisation. Furthermore, the mixture appears to mimic the adsorption and micellation properties of OPE-10 more closely than SLS, regardless of composition. With this knowledge, and considering that OPE-10 is typically more expensive than SLS, the formulator can now use only a fraction of the required amount of OPE-10 for a given application (instead of using 100% OPE-10), resulting in high performance yet economical products. It was also found that the said mixture exhibits azeotropic behaviour at a certain fixed composition.
Funding source: Department of Science and Technology (DST), Government of India
Award Identifier / Grant number: SR/FST/ETII 007-2007
About the authors
Akshaya Ravindra Chavan is a doctoral student at the Institute of Chemical Technology, Mumbai, India.
Sunil S. Bhagwat is a Professor of Chemical Engineering at the Institute of Chemical Technology, Mumbai India. His area of work is Interfacial Science & Engineering and Energy & Exergy Engineering.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: The authors are thankful to UGC-BSR for financial assistance and the Department of Science and Technology (DST), Government of India for their financial support under DST-FIST program (SR/FST/ETII 007-2007).
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
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Articles in the same Issue
- Frontmatter
- Novel Surfactants
- Synthesis and characterisation of carboxy amide-bonded pyridinium Gemini surfactants: influence of the nature of the spacer group and counterions on the aggregation behaviour
- Non-traditional oils with water-soluble substrate as cell growth booster for the production of mannosylerythritol lipids by Pseudozyma antarctica (ATCC 32657) with their antimicrobial activity
- Physical Chemistry
- Synergistic behavior of SLS-OPE-10 binary mixtures at their CMC
- Synergistic interaction between sodium dodecyl benzene sulfonate (SDBS) and N,N-dimethyldodecan-1-amine oxide (DDAO) and their adsorption onto activated charcoal and Jordanian natural clay
- Investigation of the synergistic effect and the morphology of the binary compound systems with potassium N-lauroyl glycinate
- Textile Cleaning
- Effect of the pre-treatment of stains with ultrasound in household laundry cleaning
- Flotation
- Effect of detergents on froth stability and flotation separation
- Environmental Chemistry
- Stability of pesticide in water emulsion induced by mixed surfactants
- Synthesis of surface active agents from natural waste phenolics
