Vidyadhar, A. published the artcileMechanisms of Amine-Quartz Interaction in the Absence and Presence of Alcohols Studied by Spectroscopic Methods, Recommanded Product: Dodecylamineacetate, the publication is Journal of Colloid and Interface Science (2002), 256(1), 59-72, database is CAplus.
The adsorption mechanism of long-chain alkylamines and their acetate salts on quartz was investigated using Hallimond flotation, zeta-potential, Fourier transform IR, and XPS studies at neutral pH 6-7. The influence of long-chain alcs. on the adsorption of amines in mixed amine-alc. on quartz was also examined It is shown by IR spectroscopy that in differentiation to the electrostatic adsorption model of Gaudin-Fuerstenau-Somasundaran, amine cations form strong hydrogen bonds with the surface silanol groups. The XPS spectra revealed the presence of neutral amine mols. together with protonated ammonium ions at and above the critical hemimicelle concentration The acetate counterions were found to influence the amine adsorption. Possible mechanisms of adsorption based on these observations were discussed. For the first time it was proved spectroscopically that coadsorption of long-chain alcs. along with amine cations leads to formation of a closely packed surface layer, as compared to the case of adsorption of pure amine alone at the same concentration The highest order and packing at the surface are observed when the alkyl chain length of mixed amine and alc. are the same. The condition of same chain length of amines and alcs. adsorbing at the surface corresponds to maximum flotation recovery. The results also confirmed the synergistic enhancement of amine adsorption in the presence of alcs. The mechanism for mixed long-chain amine and alc. adsorption onto quartz is consistent with the primary adsorption species of alkylammonium-water-alc. complex, where deprotonation of ammonium groups in the adsorbed layer leading to two-dimensional precipitation of mol. amine was illustrated.
Journal of Colloid and Interface Science published new progress about 2016-56-0. 2016-56-0 belongs to catalysis-chemistry, auxiliary class Active Esterification, name is Dodecylamineacetate, and the molecular formula is C44H28ClFeN4, Recommanded Product: Dodecylamineacetate.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia