𝔖 Bobbio Scriptorium
✦   LIBER   ✦

(Solid  +  liquid) equilibria in (polynuclear aromatic +  tertiary amide) systems

✍ Scribed by Zygmunt Lisicki; Małgorzata E. Jamróz

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
226 KB
Volume
32
Category
Article
ISSN
0021-9614

No coin nor oath required. For personal study only.

✦ Synopsis

The solubility of selected polynuclear aromatic compounds (anthracene, phenanthrene, carbazole, fluorene, dibenzothiophene, and dibenzofuran) in three N -substituted amide systems (N ,N -dimethylacetamide, N -methyl-2-pyrrolidinone, N -methyl-ε-caprolactam) has been measured by a dynamic method over the whole concentration range. In the case of N -methyl-ε-caprolactam systems the measurements were carried out from T = 280 K up to the melting temperatures of the aromatic compounds, because of a rapid increase of viscosity resulting in glass formation in the supercooled liquid phases. The incongruently melting compounds were found to exist only in the systems with carbazole. The other systems were simple eutectics. To estimate the activity coefficients, the liquidus curves were approximated with the Wilson, Redlich-Kister, NRTL, and UNIQUAC equations. For all calculated results the root-mean-square deviations of solubility temperatures vary from 0.1 K to 2.8 K, depending on the equation used.

📜 SIMILAR VOLUMES

(Liquid  +  liquid) equilibria
(Liquid  +  liquid) equilibria for (acetonitrile +  a carboxylic acid  +  cyclohexane) atT =  298.15 K
✍ Trevor M. Letcher; Gan G. Redhi 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 141 KB

Liquid + liquid) equilibrium data are presented for (acetonitrile + acetic acid, or propanoic acid, or butanoic acid, or 2-methylpropanoic acid, or pentanoic acid, or 3methylbutanoic acid + cyclohexane) at T = 298.15 K. The relative mutual solubility of each of the carboxylic acids is higher in the

(Solid  +  liquid) equilibria
(Solid  +  liquid) equilibria of (nalkanes  +  ethyl 1,1-dimethylpropyl ether)
✍ Urszula Domanska; Piotr Morawski 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 150 KB

The experimental results are compared with values calculated by means of the Wilson, UNIQUAC and NRTL equations utilizing parameters derived from the experimental s.l.e. The existence of a (solid + solid) first-order phase transition in hydrocarbons has been taken into consideration in the solubilit

(Liquid  +  liquid) equilibria
(Liquid  +  liquid) equilibria of (tert -amyl ethyl ether +  ethanol  +  water) at several temperatures
✍ Alberto Arce; José Martı́nez-Ageitos; Oscar Rodrı́guez; An 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 98 KB

Liquid + liquid) equilibrium data of (tert amyl ethyl ether + ethanol + water) were determined experimentally at T = (298. 15, 308.15, and 318.15) K. The experimental results were correlated with the NRTL and UNIQUAC equations. The correlations were made at each temperature and for the three tempera

(Vapour  +  liquid) equilibria
(Vapour  +  liquid) equilibria for the ternary system (benzene +  cyclohexane  +  anisole) at p =  101.32 kPa
✍ B. Orge; G. Marino; M. Iglesias; L.M. Casás; J. Tojo 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 252 KB

Consistent (vapour + liquid) equilibrium data for the ternary system (benzene + cyclohexane + anisole) at p = 101.32 kPa are reported. The results indicate that the mixture deviates positively from ideality and that only the minimum binary azeotrope (benzene + cyclohexane) exists. The activity coeff

(Vapour  +  liquid) equilibria
(Vapour  +  liquid) equilibria in (methanol  +  ethyl tert -butyl ether) and (methanol  +  ethyl tert -butyl ether +  toluene) at T =  328.15 K
✍ Tatsuhiko Ohta; Masanori Takemura; Toshiro Yamada 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 94 KB

Vapour + liquid) equilibrium data are presented for (methanol + ethyl tert-butyl ether) and (methanol + ethyl tert-butyl ether + toluene) at T = 328.15 K. The experimental results were measured by using a Boublik recirculation still. The binary results for (methanol + ethyl tert-butyl ether) and for

Isothermal and isobaric (vapour  +&
Isothermal and isobaric (vapour  +  liquid) equilibria of (N,N- dimethylformamide  +  2-propanol +  1-butanol)
✍ Longhua Zhu; Haoran Li; Congmin Wang; Shijun Han 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 107 KB

The isothermal and isobaric (vapour + liquid) equilibria (v.l.e.) for (N ,N -dimethylformamide + 2-propanol + 1-butanol) and the binary constituent mixtures were measured with an inclined ebulliometer. The experimental results are analyzed using the UNIQUAC equation with temperature-dependent binary