Tag: 300-400

Molecular interactions in binary surfactant solutions: effect of ionic counterpart was written by Kochkodan, Olga;Slobodianiuk, Nataliya;Kovshun, Lidiya;Khyzhan, Olena. And the article was included in Journal of the Mexican Chemical Society in 2020.Product Details of 104-73-4 This article mentions the following:

The effect of intermol. interactions on processes of micelle formation and adsorption in binary mixtures of non-ionic Triton X100 (TX100) with ionic sodium dodecyl sulfate and dodecylpyridinium bromide surfactants was studied. The ionic surfactants have identical hydrophobic alkyl chain and different hydrophilic groups. A feature of the used binary surfactant mixtures is that critical micelle concentrations and surface activity of the individual components are considerably different. A synergetic effect of decreasing of the surface tension was found in the surfactant mixtures It was shown that the mixed adsorption layers and the micellar phases are enriched with the nonionic surfactant. For both sodium dodecyl sulfate/TX100 and dodecylpyridinium bromide/TX100 systems, the synergetic effects were most pronounced at a high molar fraction of the nonionic surfactants in the mixture By using the Ruben-Rosen model, mol. interaction parameters in the mixed micelles βm, and in the adsorption layers βσ were evaluated. As was shown βm and βσ parameters to be notably higher for sodium dodecyl sulfate/TX100 mixture In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Product Details of 104-73-4).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.Product Details of 104-73-4

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

The dynamics of cations in pyridinium-based ionic liquids by means of quasielastic- and inelastic neutron scattering was written by Burankova, Tatsiana;Reichert, Elena;Fossog, Verlaine;Hempelmann, Rolf;Embs, Jan Peter. And the article was included in Journal of Molecular Liquids in 2014.SDS of cas: 104-73-4 This article mentions the following:

Neutron scattering is an excellent tool to study the dynamics of hydrogen-rich materials. In the present work we subsumed our results on pyridinium-based ionic liquids We have performed inelastic, quasielastic and elastic neutron scattering experiments aiming to understand the different dynamical processes that occur at different temperatures in ionic liquids Using quasielastic scattering we obtained data that can be described as a superposition of localized dynamical processes and long range diffusion. The localized processes, which originated from the alkyl chain and the pyridinium ring of the cation, have been modelled in terms of the so-called Gaussian model. The influence of the length of the alkyl chain, attached to the cation, on the dynamical processes was discussed in detail. Furthermore we show neutron backscattering data, obtained on partially deuterated samples, that clearly demonstrate the melting of the alkyl chain and the activation of Me end-group rotations at low temperatures Finally, the power of deuterium labeling was evidenced for inelastic neutron scattering data. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4SDS of cas: 104-73-4).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. The lone pair is in an sp2 orbital, projecting outward from the ring in the same plane as the σ bonds. Pyridine groups exist in countless molecules, and their applications include catalysis, drug design, molecular recognition, and natural product synthesis.SDS of cas: 104-73-4

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Critical Role of Achiral Guest Molecules in Planar Chirality Inversion of Alanine-Appended Pillar[5]arenes was written by Park, Jaehyeon;Choi, Yeonweon;Lee, Shim Sung;Jung, Jong Hwa. And the article was included in Organic Letters in 2019.Safety of 1-Dodecylpyridin-1-ium bromide This article mentions the following:

Planar chirality inversion of pillar[5]arenes bearing D– or L-alanine substituents on both rims was investigated upon addition of guest mols. having pyridinium or imidazole moieties and long alkyl chains. The D– and L-alanine-substituted pillar[5]arenes exhibited pS and pR planar chirality, resp. However, this planar chirality was inverted upon inclusion of certain achiral mols., comprising pyridinium or imidazole moieties and long alkyl chains with terminal hydroxyl or Me groups. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Safety of 1-Dodecylpyridin-1-ium bromide).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.Safety of 1-Dodecylpyridin-1-ium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Surface properties of the binary mixed systems of alkylpyridinium halides and sodium alkylsulfonates was written by Goralczyk, Danuta;Hac, Katarzyna;Wydro, Pawel. And the article was included in Colloids and Surfaces, A: Physicochemical and Engineering Aspects in 2003.Synthetic Route of C17H30BrN This article mentions the following:

Surface properties of the binary mixed systems of decyl- and dodecylpyridinium chloride or bromide and Na pentyl- and heptylsulfonate were studied. The surface tension of solutions of equimolar mixtures of surfactants and individual surfactants was measured, and the composition of mixed monolayers and surface interaction parameter β were calculated with the regular solution theory. Results indicate that the properties of mixed films depend on both ionic strength and the kind of added inorganic electrolyte. With the increase of inorganic electrolyte concentration, the content of more surface active ions in the adsorption films enhances and is the highest in the presence of NaI and the smallest when solutions contain NaCl. Mutual interactions in mixed adsorbed films are attractive. However, the strength of interaction weakens with the increase of ionic strength and depends on the kind of inorganic ions in the order: Cl^–>Br^–>I^–. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Synthetic Route of C17H30BrN).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Pyridine groups exist in countless molecules, and their applications include catalysis, drug design, molecular recognition, and natural product synthesis.Synthetic Route of C17H30BrN

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Mesostructured cobalt and nickel molybdenum sulfides was written by Trikalitis, Pantelis N.;Kerr, Tracy A.;Kanatzidis, Mercouri G.. And the article was included in Microporous and Mesoporous Materials in 2006.Safety of 1-Dodecylpyridin-1-ium bromide This article mentions the following:

The authors report the synthesis of mesostructured cobalt and nickel molybdenum sulfides prepared by reacting MoS₄^2- anions with Co²⁺ and Ni²⁺ in formamide solution in the presence of N-alkylpyridinium surfactant mols. acting as template. These systems represent the first examples of templated mesostructured Co-Mo-S and Ni-Mo-S type materials. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Safety of 1-Dodecylpyridin-1-ium bromide).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridine has a dipole moment and a weaker resonant stabilization than benzene (resonance energy 117 kJ·mol−1 in pyridine vs. 150 kJ·mol−1 in benzene). Reduced pyridines, namely tetrahydropyridines, dihydropyridines and piperidines, are found in numerous natural and synthetic compounds. The synthesis and reactivity of these compounds have often been driven by the fact many of these compounds have interesting and unique pharmacological properties. Safety of 1-Dodecylpyridin-1-ium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

A Homogeneous Mixture Composed of Vanadate, Acid, and TEMPO Functionalized Ionic Liquids for Alcohol Oxidation by H₂O₂ was written by Wang, Sa-Sa;Popovic, Zora;Wu, Hai-Hong;Liu, Ye. And the article was included in ChemCatChem in 2011.Electric Literature of C17H30BrN This article mentions the following:

Functionalized ionic liquids (ILs), such as N-(dodecyl)pyridinium vanadate (I), 1-(3-sulfopropyl)pyridinium tetrafluoroborate (II), and 2,2,6,6-tetramethyl-4-[1-oxo-3-(1-pyridinium-1-yl)propoxy]-1-piperidinyloxy tetrafluoroborate (III) were designed for a catalyst study and the synthesis of the target compounds was achieved by simple methods. A mixture of I, II and III in [Bpy]BF₄ yielded compatible IL compositions (ILCs) as a homogeneous mixture, which proved to be an efficient catalytic system for oxidation of a wide range of alcs. using H₂O₂. With the aid of II or III the catalyst could easily recovered in [Bpy]BF₄ (green chem. method) and reused for at least six runs without a loss in activity. UV/Vis spectroscopic anal. indicated that the role of 1-(3-sulfopropyl)pyridinium tetrafluoroborate was to promote the formation of the active peroxovanadium V^V species, which is responsible for substrate activation, and the role of III was to oxidize the low-valent vanadium(II-IV) species to regenerate I. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Electric Literature of C17H30BrN).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Pyridine, its benzo and pyridine-based compounds play diverse roles in organic chemistry. Pyridine-based materials are valued for their optical and physical properties as well as their medical potential. Electric Literature of C17H30BrN

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Titrimetric determination of furosemide using aqueous-micellar solutions of surfactants was written by Kulichenko, S. A.;Fesenko, S. A.. And the article was included in Journal of Analytical Chemistry (Translation of Zhurnal Analiticheskoi Khimii) in 2002.Safety of 1-Dodecylpyridin-1-ium bromide This article mentions the following:

The solubility and acid-base properties of 4-chloro-N-(2-furylmethyl)-5-sulfamoylanthranilic acid (furosemide) were studied in aqueous-micellar solutions of surfactants of different nature. Conditions of the determination of furosemide by acid-base titration in a micellar solution of tridecylpyridinium bromide were found. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Safety of 1-Dodecylpyridin-1-ium bromide).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Halopyridines are particularly attractive synthetic building blocks in a variety of cross-coupling methods, including the Suzuki-Miyaura cross-coupling reaction.Safety of 1-Dodecylpyridin-1-ium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Dodecylpyridinium chloride removal by persulfate activation using UVA radiation or temperature: experimental design and kinetic modeling was written by Nunes, Roberta Frinhani;Metolina, Patricia;Teixeira, Antonio Carlos Silva Costa. And the article was included in Environmental Science and Pollution Research in 2021.Electric Literature of C17H30BrN This article mentions the following:

The degradation of dodecylpyridinium chloride (DPC) by SO₄^–· and HO· radicals, generated by UVA and thermal-activated persulfate (PS) was investigated. Temperatures of 30-50°C were used for the heat activation of PS. In the case of UVA/PS, the effects of [PS]₀ and specific photon emission rate (EP,0) were studied through a Doehlert design coupled with statistical anal. and response surface methodol. The results showed high DPC removal (99.8%) and pseudo-first-order degradation rate (k_obs = 0.0971 min^-1) for [DPC]₀ = 4.60 ± 0.11 mg L^-1, [PS]₀ = 7.75 mmol L^-1, and EP,0 = 0.437μmol photons L^-1 s^-1, with a major role of SO₄^–· radicals in comparison with HO·. The specific DPC degradation rate found under these conditions was higher than that observed for thermal activation at 50°C and [PS]₀ = 5.5 mmol L^-1 (k_obs = 0.0712 min^-1) over the same time, although complete DPC removal was also achieved in the latter. The pos. effect of EP,0 on DPC degradation by the UVA/PS process depends on PS concentrations, with kobs values increasing linearly with [PS]₀ in the range 7.75-10 mmol L^-1, whereas lower EP,0 values can be compensated by increasing [PS]₀ up to about 10 mmol L^-1, without significant scavenging. The second-order rate constants of DPC with HO· and SO₄^–·, estimated by comprehensive kinetic modeling, were 8.26 x 10⁹ and 4.44 x 10⁹ L mol^-1 s^-1, resp. Furthermore, higher [DPC]₀ would neg. affect the DPC degradation rate by the UVA/PS process, while 62% DPC removal was obtained in WWTP water, which can be considered good given the complexity of the real matrix. Finally, our results shed light on the possibility of using available UVA radiation (4.5%) in solar irradiance on the Earth’s surface, making this treatment process more sustainable and cost-effective. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Electric Literature of C17H30BrN).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridine has a conjugated system of six π electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.Electric Literature of C17H30BrN

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

The mechanism of sonochemical degradation of a cationic surfactant in aqueous solution was written by Singla, Ritu;Grieser, Franz;Ashokkumar, Muthupandian. And the article was included in Ultrasonics Sonochemistry in 2010.Recommanded Product: 104-73-4 This article mentions the following:

The sonochem. degradation of the cationic surfactant, laurylpyridinium chloride (LPC), in water was studied at concentrations of 0.1-0.6 mM, all below its critical micelle concentration (15 mM). It has been found that the initial step in the degradation of LPC occurs primarily by a pyrolysis pathway. Chem. anal. of sonicated solutions by gas chromatog., electrospray mass spectrometry, and high performance liquid chromatog. reveals that a broad range of decomposition products, hydrocarbon gases and water-soluble species, are produced. Propionamide and acetamide were identified as two of the degradation intermediates and probably formed as the result of the opening of the pyridinium ring following OH radical addition Most of the LPC is eventually converted into carboxylic acids. The complete mineralization of these carboxylic acids by sonolysis is however a comparatively slow process due to the hydrophilic nature of these low mol. weight products. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Recommanded Product: 104-73-4).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridine is diamagnetic and has a diamagnetic susceptibility of −48.7 × 10−6 cm3·mol−1.The molecular electric dipole moment is 2.2 debyes. The standard enthalpy of formation is 100.2 kJ·mol−1 in the liquid phase and 140.4 kJ·mol−1 in the gas phase. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals.Recommanded Product: 104-73-4

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Adsorption of cationic and nonionic surfactants on a SiO₂ surface from aqueous solutions: 2. Adsorption of dodecylpyridinium bromide and Triton X-100 from mixed solutions was written by Kharitonova, T. V.;Ivanova, N. I.;Summ, B. D.. And the article was included in Colloid Journal in 2005.Product Details of 104-73-4 This article mentions the following:

Adsorption of cationic (dodecylpyridinium bromide) and nonionic (Triton X-100) surfactants from their mixed aqueous solutions on a SiO₂ surface at pH 3.6, 6.5, and 10 was studied by the UV spectroscopy, capillary zone electrophoresis, and wetting measurements. The adsorption of cationic and nonionic surfactants from mixed solutions is accompanied by synergistic effects manifesting themselves as an enhanced adsorption of both surfactants compared to their adsorption from individual solutions The effect of 2nd component becomes most pronounced under conditions when differences in adsorption abilities of individual surfactants are rather large (at pH 3.6 and 10). The adsorption of surfactants from mixed solutions can be controlled by the adsorption ability of components via the variations in solution pH. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Product Details of 104-73-4).

1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridine has a conjugated system of six π electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Pyridine derivatives are also useful as small-molecule α-helix mimetics that inhibit protein-protein interactions, as well as functionally selective GABA ligands.Product Details of 104-73-4

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem