Results 21 to 30 of about 66,973 (276)

The application of hydrogen-palladium electrode for potentiometric acid-base determinations in tetrahydrofuran [PDF]

Journal of the Serbian Chemical Society, 2013
The application of the hydrogen-palladium electrode (H2/Pd) as the indicator electrode for the determination of relative acidity scale (Es, mV) of tetrahydrofuran (THF) and the potentiometric titrations of acids in this solvent was investigated.
Jokić Anja B., Džudović Radmila M., Jakšić Ljiljana N., Nikolić-Mandić Snežana D.   +3 more
doaj   +1 more source

The Cationic Ring-Opening Polymerization of Tetrahydrofuran with 12-Tungstophosphoric Acid

Molecules, 2010
The cationic ring-opening polymerization reaction of tetrahydrofuran at 20 ºC was catalyzed by H3PW12O40·13H2O as solid acid catalyst. The effect of the proportions of acetic anhydride and catalyst, reaction time and support on the polymerization ...
Hassan Al-Shahri, Salem S. Al-Deyab, Ahmed Aouissi   +2 more
doaj   +1 more source

Preparation of nanoporous β-Li₃PS₄ solid electrolyte with high ionic conductivity by wet chemical method

Cailiao gongcheng, 2019
The β-Li3PS4 solid electrolyte with high ionic conductivity and low activation energy was prepared by wet chemical method and stepwise heated to remove tetrahydrofuran molecules from the precipitate. The morphology, structure and phase composition of the
LI Jiu-yong, LIU Wei-ming, ZHANG Xiao-feng, MA Yi-bo, CHEN Mu, QIU Ran-feng, YAN Yue   +6 more
doaj   +1 more source

Tetrahydrofuran (THF)-Mediated Structure of THF·(H₂O)_n=1–10: A Computational Study on the Formation of the THF Hydrate

Crystals, 2019
Tetrahydrofuran (THF) is well known as a former and a promoter of clathrate hydrates, but the molecular mechanism for the formation of these compounds is not yet well understood.
Jinxiang Liu, Yujie Yan, Youguo Yan, Jun Zhang   +3 more
doaj   +1 more source

Removal of Copper (II) Ions from the Effluent by Carbon Nanotubes Modified with Tetrahydrofuran [PDF]

Chemical Review and Letters, 2022
In this study, a carbon nanotube modified with tetrahydrofuran was first synthesized. After preparing the adsorbent, discontinuous adsorption experiments of copper metal were performed on the adsorbent.
Bijan Ghanavati, Alireza Bozorgian, Javad Ghanavati   +2 more
doaj   +1 more source

Comparison of extractive distillation flowsheets for methanol–tetrahydrofuran–water mixtures

Тонкие химические технологии, 2020
Objectives. Synthesis and comparative analysis of the extractive distillation flowsheets for aqueous mixtures of solvents utilized in pharmaceutical industries using the example of a methanol−tetrahydrofuran−water system with various compositions.
V. M. Raeva, A. M. Dubrovsky
doaj   +1 more source

Sulfurous Zeosils for Dehydra-Decyclization of Tetrahydrofuran to Renewable Butadiene [PDF]

, 2023
Renewable 1,3-butadiene (1,3-BD, C4H6) was synthesized from the tandem decyclization and dehydration of biomass-derived tetrahydrofuran (THF) on weak Brønsted acid zeolite catalysts.
Wei, Fan, Bess, Vlaisavljevich, Paul, Dauenhauer, Xinyu, Li, Raisa Carmen, Andeme Ela, Jorge, Barroso, Gaurav, Kumar, Kaivalya, Gawande, Manish, Shetty   +8 more
core   +2 more sources

Densities and excess molar volumes of the binary systems of the ionic liquid trihexyl(tetradecyl)phosphonium bromide mixed with acetonitrile or tetrahydrofuran at temperatures from 293.15 to 313.15 K

Frontiers in Physics, 2023
Experimental densities and excess molar volumes of two binary mixtures composed of the ionic liquid trihexyl(tetradecyl)phosphonium bromide ([THTDP][Br]) mixed with acetonitrile (ACN) or tetrahydrofuran (THF) are reported in this work.
Octavio Elizalde-Solis, Abel Zúñiga-Moreno, Luis E. Camacho-Camacho, Ricardo García-Morales, Sandro González-Arias, Francisco J. Verónico-Sánchez   +5 more
doaj   +1 more source

Synthesis of liquid copolymerized tetrahydrofuran?鄄epichlorohydrin rubber catalyzed by diphenyl sulfoxide and boron trifluoride complex

Hecheng xiangjiao gongye
Liquid copolymerized tetrahydrofuran?鄄epichlorohydrin rubber was synthesized by alternating copolymerization of tetrahydrofuran and epichlorohydrin using diphenyl sulfoxide / boron trifluoride complex as catalyst.
YE Haigen1, ZHOU Limin2
doaj   +1 more source

Direct Observation of THF Hydrate Formation in Porous Microstructure Using Magnetic Resonance Imaging

Energies, 2012
The porous microstructure of hydrates governs the mechanical strength of the hydrate-bearing sediment. To investigate the growth law and microstructure of hydrates in porous media, the growth process of tetrahydrofuran (THF) hydrate under different ...
Di Liu, Chuanxiao Cheng, Yu Liu, Yiming Zhu, Weiguo Liu, Weihaur Lam, Yongchen Song, Jiafei Zhao, Kaihua Xue   +8 more
doaj   +1 more source