Physico-chemical properties of the ternary system urea-ammonium nitrate-water. Density

1983 ◽  
Vol 48 (4) ◽  
pp. 1097-1103
Author(s):  
Ludmila Bartovská ◽  
Jiřina Hejtmánková ◽  
Marie Šišková ◽  
Lubomír Jäger
Keyword(s):  
Experimental Data ◽  
Ternary System ◽  
Ammonium Nitrate ◽  
Binary Systems ◽  
Chemical Properties ◽  
Water Density ◽  
Physico Chemical ◽  
Temperature Dependences ◽  
Urea Ammonium Nitrate

Density of the ternary system urea-ammonium nitrate-water was measured in the range of overall concentrations 0-75 mass % at temperatures of 0, 20, 30 and 40 °C. The experimental data are compared with the values calculated from the relation obtained by combining the temperature dependences of densities of the binary systems urea-water and ammonium nitrate-water.

Physico-chemical properties of the ternary system urea-ammonium nitrate-water. Surface tension

1985 ◽  
Vol 50 (8) ◽  
pp. 1629-1635 ◽  
Author(s):  
Marie Šišková ◽  
Jiřina Hejtmánková ◽  
Lidmila Bartovská
Keyword(s):  
Surface Tension ◽  
Ternary System ◽  
Ammonium Nitrate ◽  
Binary Systems ◽  
Chemical Properties ◽  
Ternary Systems ◽  
Surface Tensions ◽  
Physico Chemical ◽  
Urea Ammonium Nitrate ◽  
Experimental Values

Surface tension of two binary systems ammonium nitrate-water and urea-water and of the ternary system ammonium nitrate-urea-water was measured as a function of concentration at 20 and 40 °C. The experimental values were compared with those calculated from the relations which were proposed for calculating surface tensions of ternary systems from measured surface tensions of both binary systems.

Saturated vapour pressures of the ternary system urea-ammonium nitrate-water

1983 ◽  
Vol 48 (8) ◽  
pp. 2130-2140
Author(s):  
Jiřina Hejtmánková ◽  
Lidmila Bartovská ◽  
Marie Šišková ◽  
Lubomír Jäger
Keyword(s):  
Experimental Data ◽  
Ternary System ◽  
Ammonium Nitrate ◽  
Binary Systems ◽  
Isopiestic Method ◽  
Saturated Vapour ◽  
Liquid Solutions ◽  
Urea Ammonium Nitrate ◽  
Standard Solutions

Saturated vapour pressures of the ternary liquid solutions of urea and ammonium nitrate in water were investigated by the isopiestic method at 15, 25 and 35 °C. The measurements were carried out within the concentrations that are measurable by means of the NaCl standard solutions (i.e. up to the NaCl molality 6 mol/kg). The experimental data are correlated in terms of isotonic solutions of the urea-water and ammonium nitrate-water binary systems.

scholarly journals The Addition of N-Butanol in Ethanol-Isooctane Mixture to Reduce Vapor Pressure of Oxygenated-Gasoline Blend

2017 ◽  
Vol 17 (3) ◽  
pp. 500 ◽  
Author(s):  
Rendra Panca Anugraha ◽  
Zul Akbar Andi Picunang ◽  
Annas Wiguno ◽  
Rizky Tetrisyanda ◽  
Kuswandi Kuswandi ◽  
...  
Keyword(s):  
Experimental Data ◽  
Ternary System ◽  
Vapor Pressure ◽  
Binary Systems ◽  
Experimental Results ◽  
Ideal Solution ◽  
Positive Deviation ◽  
Relative Deviation ◽  
Wilson Model ◽  
Binary Parameter

In this work, vapor pressure of binary systems for isooctane + ethanol, isooctane + n-butanol and ethanol + n-butanol and ternary system for isooctane + ethanol + n-butanol were measured in the temperature range from 313.15 to 318.15 K using the inclined ebulliometer. The experimental results showed that the existence of n-butanol in isooctane decreases the vapor pressure of mixture, while increasing n-butanol fraction in ternary isooctane-ethanol-n-butanol mixture decreased vapor pressure of mixture. Experimental data for binary systems studied were correlated with Wilson, NRTL and UNIQUAC models with average relative deviation (ARD) of 3.5%. The optimized binary parameter pairs obtained in this work were used to estimate the ternary system. The Wilson model gave the best performance for estimation of ternary system with ARD of 5.4%. All systems studied showed non-ideal solution with positive deviation from Raoult’s law.

scholarly journals Physico-chemical Properties of Solutions of Lithium Bis(fluorosulfonyl)imide (LiFSI) in Dimethyl Carbonate, Ethylene Carbonate, and Propylene Carbonate

2021 ◽  
Author(s):  
Johannes Neuhaus ◽  
Erik von Harbou ◽  
Hans Hasse
Keyword(s):  
Experimental Data ◽  
Electrical Conductivity ◽  
Propylene Carbonate ◽  
Dimethyl Carbonate ◽  
Ethylene Carbonate ◽  
Chemical Properties ◽  
Lithium Ion ◽  
Solvent System ◽  
Empirical Correlations ◽  
Physico Chemical

Battery performance strongly depends on the choice of the electrolyte-solvent system. Lithium bis(fluorosulfonyl)imide (LiFSI) is a highly interesting novel electrolyte. Information on physico-chemical properties of solutions of LiFSI, however, is scarce. Therefore, the density, shear viscosity, and electrical conductivity of solutions of LiFSI in three pure solvents that are interesting for battery applications: dimethyl carbonate (DMC), ethylene carbonate (EC), and propylene carbonate (PC), were studied experimentally at temperatures between 273 K and 333 K at 1 bar and concentrations of LiFSI up to 0.45 mol mol−1 in the present work. Empirical correlations of the experimental data are provided. The comparison of the data of this work with the corresponding LiPF6 data underpins the attractiveness of LiFSI as an electrolyte in lithium ion batteries.

Correlation and Prediction of Vapor-Liquid Equilibrium for the Propylene Oxide-Ethanol-Water Ternary System

2011 ◽  
Vol 396-398 ◽  
pp. 973-976
Author(s):  
Cheng Xue Wang ◽  
Rui Xia Jiang
Keyword(s):  
Experimental Data ◽  
Ternary System ◽  
Propylene Oxide ◽  
Binary Systems ◽  
Molar Fraction ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Vle Data ◽  
Consistency Verification ◽  
Vapor Liquid

The vapor-liquid equilibrium (VLE) data for the binary systems ethanol-water (1), propylene oxide (PO)-ethanol (2), PO-water (3) and the ternary system PO-ethanol-water (4) were determined at 101.3kPa. The binary VLE data measured passed the thermodynamic consistency verification. The experimental VLE data of the binary systems were correlated with the nonrandom two-liquid (NRTL) models. The results show that the values of molar fraction of the ternary system (4) in vapor phase from the binary NRTL parameters agree well with the experimental data.

Thermodynamic Analysis of the Fe-Mn-P Ternary Phase Diagram by Combining the First-Principles and CALPHAD Methods

2007 ◽  
Vol 561-565 ◽  
pp. 1899-1902 ◽  
Author(s):  
T. Tokunaga ◽  
N. Hanaya ◽  
Hiroshi Ohtani ◽  
Mitsuhiro Hasebe
Keyword(s):  
Experimental Data ◽  
Phase Diagram ◽  
Ternary System ◽  
Thermodynamic Analysis ◽  
First Principles ◽  
Binary Systems ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
First Principles Calculations ◽  
The Enthalpy Of Formation

A thermodynamic analysis of the Fe-Mn-P ternary system has been carried out using the CALPHAD method. Among the three binary systems relevant to this ternary phase diagram, the thermodynamic parameters of the Mn-P binary system were evaluated in this study. The enthalpy of formation of the binary phosphides obtained from our first-principles calculations was utilized in the present analysis to compensate for the lack of available experimental data. The thermodynamic descriptions of the Fe-Mn and Fe-P binary systems were taken from previous studies. The phase equilibria in the Fe-Mn-P ternary system were analysed based on the experimental data on the phase boundaries. The calculated phase diagrams are in agreement with the experimental results.

scholarly journals USING MELT HIGH-TEMPERATURE TREATMENT FOR PROCESSING FOUNDRY WASTES OF HEAT-RESISTANT ALLOY

2019 ◽  
Vol 62 (3) ◽  
pp. 222-227
Author(s):  
A. G. Тyagunov ◽  
Е. Е. Baryshev ◽  
G. V. Tyagunov ◽  
Т. K. Кostina ◽  
K. Yu. Shmakova
Keyword(s):  
High Temperature ◽  
Crystallization Process ◽  
Chemical Properties ◽  
High Temperature Treatment ◽  
Critical Temperatures ◽  
Heat Resistant ◽  
Technical Requirements ◽  
Melt Treatment ◽  
Physico Chemical ◽  
Temperature Dependences

At present time, metallurgical wastes are used in metallurgical alloys production more and more. The volume accumulation and increase of return age effect on charge pollution by undesirable elements and nonmetallic inclusions. As a result, structure and properties of the casting inevitably get worse. This circumstance must influence on polytherm’s character of physical properties of the melt, necessary temperature and time parameters of the heat-resistant alloy’s melting accordingly. We have researched the temperature dependences of electrical resistance and kinematic viscosity of liquid heat-resistant composites based оn Ni – Nb – Cr – Mo systems. The critical temperatures were determined for the EP902 alloy. Heating up to these temperatures leads to irreversible changes in direction of the melt improving. Interaction was found between the amount of foundry waste and features of temperature dependences of the melt physico-chemical properties. An increase in the amount of foundry waste using in remelting results in the critical temperatures increasing. Influence of the melt conditions on crystallization process and on the structure of hard metal has been studied. The process of alloy EР902 solidification was researched by differential thermal analysis method. It has shown that the crystallization process starts with extraction of solid solution on the base of γ-phases and ends with forming of the eutectic based on the Ni3Nb intermetallic compound. Heating of the melt over the critical temperature leads to an increase of supercooling and does not effect on the eutectic temperature. The processing mode of the high temperature melt treatment was proposed based on the research results of physico-chemical properties of the liquid metal and process of the melt crystallization. It allows obtaining the highest quality of casting of heat-resistant EР902 alloy, which contains significant amount of foundry waste in the charge. The mechanical tests were implemented for experimental samples melted out by the optimal mode of high-temperature melt treatment (HTTM). Application of HTTM for the melts, contained 50 % of foundry waste in charge, allows obtaining the level of strength and plastic properties exceeding the technical requirements, stabilizing and combining it from melt to melt.

scholarly journals Properties of Granular Nitrogen-Containing Fertilizers Based on Pine Sawdust and Studying its Effectiveness in Growing Wheat in the Agricultural Zone of the Krasnoyarsk Territory

2021 ◽  
Vol 14 (4) ◽  
pp. 570-581
Author(s):  
Vasily N. Romanov ◽  
◽  
Natalia S. Kozulina ◽  
Tatiana A. Snitkova ◽  
Albina V. Vasilenko ◽  
...  
Keyword(s):  
Ammonium Nitrate ◽  
Field Trial ◽  
Water Solution ◽  
Wheat Yield ◽  
Chemical Properties ◽  
Wheat Varieties ◽  
Pine Sawdust ◽  
Physico Chemical

A method for producing granular fertilizers based on pine sawdust containing ammonium nitrate is proposed. Physico-chemical properties of sawdust and fertilizers containing 20.0 wt.% nitrogen were studied. The effect of pretreatment of pine sawdust with 1 % wt. with a water solution of NaOH on the properties of granular fertilizers was explored. The results of a field trial on the cultivation of wheat varieties «Krasnoyarskaya 12» revealed the growth-stimulating effect of nitrogen-containing granular fertilizers in comparison with an unfertilized background. A more effective influenceon wheat yield of granular fertilizer fabricated from pine sawdust after their treatment with 1 % wt. with a water solution of NaOHThe achieved effect on 1,9 c/ha higher in comparison with thefertilizer based on original sawdust

Heats of vaporization of nonelectrolytes

1979 ◽  
Vol 44 (2) ◽  
pp. 307-312
Author(s):  
Petr Kyselka ◽  
Jiří Rameš ◽  
Karel Procházka
Keyword(s):  
Experimental Data ◽  
Chemical Properties ◽  
Approximate Expression ◽  
Maximum Deviation ◽  
First Order ◽  
Critical Data ◽  
Physico Chemical ◽  
Theory Of Liquids ◽  
Nonpolar Liquids ◽  
Experimental Values

The first-order perturbation theory of liquids was used for developing an approximate expression suitable for a rapid calculation of the heat of vaporization of nonpolar liquids formed by approximately spherical molecules. The calculation uses only available physico-chemical properties of substances, namely the critical data. The results are tested by a comparison with existing experimental data on a series of nonpolar substances. The agreement between calculated values and experimental data is relatively good. The maximum deviation between theoretical and experimental values does not exceed ±10%.

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