Amounts of soap and builder necessary to soften water of different degrees of hardness

In our previous work, limiting separation factors K i ∞ of 2-furanaldehyde, benzaldehyde, phenylethanal, and 2-phenylethanol in water were determined using a recirculating still of the Gillespie type. Limiting activity coefficients γ i ∞ were calculated out of the limiting separation factors K i ∞ in the previous work, too. As it was announced in those papers, a revised calculation of the limiting activity coefficient γ ∞ data was performed in this work. For this work, vapor pressure measurements were performed with the transpiration method. The results of these measurements are given here together with the derived enthalpies of vaporization of the investigated components and their formerly calculated and recalculated limiting activity coefficients in water at 100°C.

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Solubilities of Hexanal, Benzaldehyde, 2-Furfural, 2-Phenylethanol, Phenylethanal, and γ-Nonalactone in Water at Temperatures between (50 and 100) °C

Hertel

Scheuren

Sommer

2007

J. Chem. Eng. Data

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Data of the solubility x S of wort flavor compounds in water is useful to understand the behavior of these components during the production of wort. Because of this fact, the maximum solubility x S of hexanal, benzaldehyde, 2-furfural, 2-phenylethanol, phenylethanal, and γ-nonalactone in water has been measured at different temperatures. The method used was the analysis of the mole fraction of a component in water after liquid-liquid-equilibrium has been reached in a thermostat. As the investigated components show a large absorption of UV light, the mole fractions were analyzed with a spectrophotometer. Furthermore, a literature review of already reported solubility data at temperatures between (50 and 100) °C, including a comparison to the measured values, is given in this article.

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Amounts of soap and builder necessary to soften water of different degrees of hardness

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Properties of ceramic foam catalyst supports: one-dimensional and two-dimensional heat transfer correlations

Properties of ceramic foam catalyst supports: one-dimensional and two-dimensional heat transfer correlations

Vapor Pressures, Enthalpies of Vaporization, and Limiting Activity Coefficients in Water at 100 °C of 2-Furanaldehyde, Benzaldehyde, Phenylethanal, and 2-Phenylethanol

Solubilities of Hexanal, Benzaldehyde, 2-Furfural, 2-Phenylethanol, Phenylethanal, and γ-Nonalactone in Water at Temperatures between (50 and 100) °C

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