Acta Universitatis Lodziensis. Folia Chimica: Ostatnio dodane
Wyświetlanie pozycji 81-100 z 120
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Enthalpy of solution of benzoic aldehyde in aliphatic alcohols at 298.15 K
(Uniwersytet Łódzki, 1985)Enthalpies of solution of benzoic aldehyde in methanol, ethanol, n-propanol, n-butanol, iso-butanol (2-methylpropanol-1), and butanol-2 were measured at 298.15 K in the range of concentrations from ca. 0.004 mole. kg⁻¹ ... -
Oxidation of cinnamaldehyde and cinnamic acid with cerium (IV) in perchloric acid solution
(Uniwersytet Łódzki, 1985)The affect of various reagents on the rate of cerium (IV) reduction with cinnamaldehyde and cinnamic acid was studied by way of potentiometric determination or the unreacted oxidizer in samples of the reaction mixtures. ... -
Kinetics of oxidation acrylic amide with cerium (IV) perchlorate
(Uniwersytet Łódzki, 1985)The aaparoaatrlc method without the applied external potential was used for the measurements of the reaction rate of cerious perchlorate connected with the acrylic amide oxidation process with cerium (IV) in the presence ... -
Thermodynamic functions of activation of viscous flow in NaI-water-amide systems
(Uniwersytet Łódzki, 1984) -
Chromium(III) complexes with DL-methionine and L-cysteine
(Uniwersytet Łódzki, 1984)Chromium(III) complexes with DL-methionine and L-cysteine have beon investigated by pH-metric and spectrophotometric methods. In both investigated systems, three complexes of the composition H : L = 1 : 1; 1 : 2; 1 : ... -
Cerometric determination of phenol and some of its derivatives
(Uniwersytet Łódzki, 1985)A method has been developed of determining phenol and its derivatives using cerium perchlorate in aqueous perchloric acid solution. The procedure takes advantage of the kinetic method of fixed reaction time and of the ... -
Kinetics of thallium (III) reduction with butantriol-1,2,4 and cis-buten-2-diol-1,4
(Uniwersytet Łódzki, 1985)The present study is a continuation of the investigations reported in a series of earlier papers [1-4}. An attempt is made to describe in more detail the course of thallium (III) reduction with compounds containing ... -
Thermochemical in vestigation of NaI solutions in water-acetamide mixtures
(Uniwersytet Łódzki, 1984)The enthalpies of solution of NaI in water-acetamide mixtures have been determined colorimetrically over the temperature range 25-85 C. The thermodynamic results obtained are correlated with results from earlier ... -
Les critéres de promotion et de destruction de l’eau par les électrolytes
(Uniwersytet Łódzki, 1984)A la base des données accessibles, contenues dans la litterature et qui concernent l‘interaction ion-eau, on a procédé à une analyse critique de l'application des termes de promoteur ("structure making") et de ... -
Kinetics of the reaction of thiourea with methyl iodide
(Uniwersytet Łódzki, 1982)Kinetics of the reaction of thiourea with methyl iodide in aqueous solutions at the temperatures 25°, 35° and 40°C has been investigated. The reaction was found to be dimolecular. The rate of the reaction is not affected ... -
Thermochemical investigations of NaI-water-isopropanol system with addition of formamide and of N,N-dimethylformamide at temperature 298.16 K
(Uniwersytet Łódzki, 1982)Enthalpy of solution of NaI in water-isopropanol mixtures with the addition of formamide and of N,N-dimethylformamide was measured. The course of relation of standard enthalpy of NaI solution in the investigated mixed solvents ... -
Viscosimetric investigations of H₂O-AcNH₂-NaI ternary system with in the temperature range 25-85°C
(Uniwersytet Łódzki, 1982)The viscosity of NaI solutions in mixed water-acetamide solvents over the temperature range 25-85°C has been measured. The dependence of viscosity, relative viscosity and the thermodynamic functions of activation for ... -
Viscosimetric investigations of water-acetamide system with in the temperature range 25-85°C
(Uniwersytet Łódzki, 1982) -
Densimetric investigations of water-acetamide system with in the temperature range 25-85°C
(Uniwersytet Łódzki, 1982)The density of aqueous acetamide solutions was measured over the temperature range 25-85 C. From the obtained density data apparent molal volume of acetamide in water and volume expansibility coefficient were calculated. The ... -
Thermodynamic investigation of thiourea in water solutions
(Uniwersytet Łódzki, 1982)Relative partial molal enthalpies of thiourea and water and excess of relative partial molal entropy of water were determined from enthalpies of solution of thiourea in water with in the temperature range 293.15-333.15 K. -
The molal enthalpy of solution of acetophe none in the aliphatic alcohols at 286.16 K
(Uniwersytet Łódzki, 1982)The values of the enthalpy of solution of acetophenone in methanol, butanol-1, 2-methylpropanol-1 and butanol-2 with in the concentration range from ca. 0.003 mole/kg to ca.0.043 mole/kg at 286.16 K have been determined. It ... -
Chromatography of chelate metal complexes. V. Complexes of Fe (III), Cr (III) and Al(III) with violet R
(Uniwersytet Łódzki, 1982)A new method of chromatographic paper separation of a mixture of ions Fe(III), Cr(III) and Al(III) has been elaborated with the use of differences of complexogenic properties of violet R in respect of the particular ions. -
Investigation of complex formation reactions of Fe(III) and Al(III) with some phenol derivatives by the method of ion exchange
(Uniwersytet Łódzki, 1982)By the method of ion exchange on the exchanger Dowex 50 WX 8 100-200 mesh complex formation was investigated in the system Me(ClO₄)₃ + XC₆H₄OH + HClO₄ + NaClO₄ + H₂O, with Me = Fe(III) or Al(III) and X = Cl, Br, CH₃, ... -
Formation of triacetylthiocarbamide chromium perchlorate
(Uniwersytet Łódzki, 1982)The method were elaborated for the preparation of [Cr(CH₃CONHCSNH₂)₃] (ClO₄)₃. In this paper we give conditions for the synthesis, composition, properties and propose the structure of the obtained compound.