anwar rubel (8 resultados)

Condición: New.

Condición: New.

Taschenbuch. Condición: Neu. Solution Properties of Tetrahydrofuran with 2¿Alkoxyalkanols | A Study on Density, Ultrasonic Speed, Viscosity & Optical Parameters | Rubel Anwar (u. a.) | Taschenbuch | Englisch | 2020 | LAP LAMBERT Academic Publishing | EAN 9786202564533 | Verantwortliche Person für die EU: LAP Lambert Academic Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Density ( ), coefficient of viscosity ( ), speed of sound (u), refractive index (nD) and some of their derived properties of the two liquid-liquid binary solutions: 2-Ethoxyethanol (EE) + Tetrahydrofuran (THF) and 2-Butoxyethanol (BE) + Tetrahydrofuran (THF) have been studied between 298.15 K and 323.15 K temperatures at an interval of 5 K in the whole range of composition, 0 x2 1, where x2 is the mole fraction of THF. Excess molar volume (VmE), Partial molar volume (V), apparent molal volume ( v) thermal expansivity ( ) as well as its excess value ( E) have been estimated from the measured density ( ) data. The deviation of sound velocity (Deltau), acoustical impedance (Z), excess acoustic impedance (ZE), isentropic compressibility ( s) and deviation in isentropic compressibility deviation (Delta s) have also been derived from their and u data.In this study it is thought that the association of hydrogen bonds between like molecules predominates. Also, there is possibility of formation of some complexes and the pi.H interaction between pi electrons of THF and hydrogen atom of the hydroxyl group of alkoxyalkanol. 280 pp. Englisch.

Condición: New. Print on Demand.

Condición: New. PRINT ON DEMAND.

Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Density (¿), coefficient of viscosity (¿), speed of sound (u), refractive index (nD) and some of their derived properties of the two liquid-liquid binary solutions: 2-Ethoxyethanol (EE) + Tetrahydrofuran (THF) and 2-Butoxyethanol (BE) + Tetrahydrofuran (THF) have been studied between 298.15 K and 323.15 K temperatures at an interval of 5 K in the whole range of composition, 0 ¿ x2 ¿1, where x2 is the mole fraction of THF. Excess molar volume (VmE), Partial molar volume (V), apparent molal volume (¿v) thermal expansivity (¿) as well as its excess value (¿E) have been estimated from the measured density (¿) data. The deviation of sound velocity (¿u), acoustical impedance (Z), excess acoustic impedance (ZE), isentropic compressibility (¿s) and deviation in isentropic compressibility deviation (¿¿s) have also been derived from their ¿ and u data.In this study it is thought that the association of hydrogen bonds between like molecules predominates. Also, there is possibility of formation of some complexes and the ¿.H interaction between ¿ electrons of THF and hydrogen atom of the hydroxyl group of alkoxyalkanol.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 280 pp. Englisch.

Taschenbuch. Condición: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Density ( ), coefficient of viscosity ( ), speed of sound (u), refractive index (nD) and some of their derived properties of the two liquid-liquid binary solutions: 2-Ethoxyethanol (EE) + Tetrahydrofuran (THF) and 2-Butoxyethanol (BE) + Tetrahydrofuran (THF) have been studied between 298.15 K and 323.15 K temperatures at an interval of 5 K in the whole range of composition, 0 x2 1, where x2 is the mole fraction of THF. Excess molar volume (VmE), Partial molar volume (V), apparent molal volume ( v) thermal expansivity ( ) as well as its excess value ( E) have been estimated from the measured density ( ) data. The deviation of sound velocity (Deltau), acoustical impedance (Z), excess acoustic impedance (ZE), isentropic compressibility ( s) and deviation in isentropic compressibility deviation (Delta s) have also been derived from their and u data.In this study it is thought that the association of hydrogen bonds between like molecules predominates. Also, there is possibility of formation of some complexes and the pi.H interaction between pi electrons of THF and hydrogen atom of the hydroxyl group of alkoxyalkanol.