2 Results for "

surface excess

" in MedChemExpress (MCE) Product Catalog:
Products (2)

2 Results for "surface excess" in MCE Product Catalog:

Cat. No.: HY-W099535
CAS No.: 2044-56-6
Research Areas:  

Others

Lithium dodecyl sulfate is an anionic hydrocarbon surfactant with both surface tension reduction and interfacial adsorption capabilities. Lithium dodecyl sulfate forms micelles in aqueous solutions via entropy-driven (low temperature) and enthalpy-driven (high temperature) mechanisms, and can also form an adsorption layer at the air-water interface with quantifiable surface excess and minimum area per molecule. Lithium dodecyl sulfate exhibits favorable equilibrium surface tension and foamability, but shows low foam stability above its critical micelle concentration. When acting synergistically with tetrabutylammonium bromide, Lithium dodecyl sulfate also exhibits unique cloud point behavior due to micelle aggregation and phase separation .
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Cat. No.: HY-W014861
CAS No.: 75-58-1
Synonyms: Tetramethyl-ammoniuiodide
Tetramethylammonium iodide (Tetramethyl-ammoniuiodide) is a capillary active agent and weakly capillary active quasi-simple salt. Tetramethylammonium iodide decreases aqueous solution surface tension with increasing concentration and exhibits surface accumulation of constituent ions at liquid-vapor interfaces .
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