Determinao da massa molar por crioscopia: terc-butanol, um solvente extremamente adequadotert-butyl alcoholcryoscopymolar mass determinationWe intend to divulge an easy experiment that permits the determination of molar masses of various compounds by cryoscopy. The major advantage of this is the use...
[1,2] using Pluronic P123 (EO20PO70EO20) and n-butanol as a structure-directing mixture, with TEOS as the silica source. This method has the advantage of being simple and highly reproducible in large quantities. The molar composition of the starting reaction mixture is TEOS/P123/HCl/H2O/...
χg is the mass susceptibility of the solute, Δυ is the observed shift in the frequency of the reference compound (t-butanol), υ is the frequency of the spectrometer, and m is the mass of the complex per cm3 of solvent. χm=610001cΔυυ χm is the molar susceptibility of the ...
4-dioxane + 1-butanol [1] at five temperaturesT= (298.15, 303.15, 308.15, 313.15 and 318.15) K. In the continuation of investigation on excess thermodynamics functions of cyclic ethers in polar and non-polar solvents, authors are reporting ...
andbutanol,99.98%(bymass). Refractiveindices weremeasured with an A b b e typ e refr act omet er (WZS—I model,made in Shanghai) with a precision of 士0 .0 0 0 1 .T he meas ur ed p hy sical prop ert ies of t he p ur e ma terials ar e inclu ded in T abl...
1-butanol1-hexanol1-octanol1-decanolThe solubility of 1-butyl-3-methylimidazolium octylsulfate, [BMIM][OcSO 4 ], has been determined in hydrocarbon ( n -hexane, n -heptane, n -octane or n -decane) solutions and alcohol (methanol, 1-butanol, 1-hexanol, 1-octanol or 1-decanol) solutions...
2,3-dimethyl-2-butanol (98%), anhydrous acetonitrile (MeCN; HPLC grade, >99.9%), anhydrous dimethylsulfoxide (DMSO; HPLC grade, 99.9%), hexane (HPLC grade, >97%), ethyl acetate (HPLC grade, >99.8%), ammonium formate (HCOOHNH4) (HPLC grade, >99%), triethylamine (TEA; >99%), 1,...
Isothermal vapor-liquid equilibrium and excess molar enthalpies of the binary mixtures furfural + methyl isobutyl ketone, +2-butanol and +2-methyl-2-butanol 机译:糠醛+甲基异丁基酮,+ 2-丁醇和+ 2-甲基-2-丁醇的二元混合物的等温气液平衡和过量摩尔焓 获取原文 获取原文并翻译 | 示例 获取外文期...
The densities of 1-butanol and 1-pentanol were measured in aqueous solutions of dodecyltrimethylammonium bromide and dodecyldimethylamine oxide and the partial molar volumes at infinite dilution of the alcohols in aqueous surfactants solutions were obtained. The observed trends of this quantity as a ...
Isothermal vapor–liquid equilibria (VLE) of the binary mixture of furfural+methyl isobutyl ketone (MIBK), furfural+2-butanol and furfural+2-methyl-2-butanol were measured at 333, 346 and 353K with three equipment: a static total pressure apparatus, a recirculation still apparatus and a gas ...