搜索结果: 1-15 共查到“化学 mixtures”相关记录17条 . 查询时间(0.032 秒)
Practical Data Correlation of Flashpoints of Binary Mixtures by a Reciprocal Function: The Concept and Numerical Examples
Flashpoint binary mixtures reciprocal function data approximation
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2011/8/11
Abstract: Simple data correlation of flashpoint data of binary mixture has been developed on a basic of rational reciprocal function. The new approximation requires has only two coefficients and needs...
Nonadditive hard-sphere fluid mixtures. A simple analytical theory
Nonadditive hard-sphere fluid mixtures simple analytical theory Statistical Mechanics
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2011/8/18
Abstract: We construct a non-perturbative fully analytical approximation for the thermodynamics and the structure of non-additive hard-sphere fluid mixtures. The method essentially lies in a heuristic...
Calculation of Viscosity and Diffusion Coefficients for Two Binary Gaseous Mixtures Using the Semi-empirical Inversion Method
Inversion method Viscosity Diffusion Gaseous mixture
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2012/4/5
The accurate reduced potential energies for two binary gas mixtures including benzene-methanol and methane-tetrafluoromethane at low density have been obtained by direct inversion of the viscosity col...
Emission Spectroscopic Study on Gas–Gas Interactions in Glow Discharge Plasmas Using Several Binary Gas Mixtures
Emission Spectroscopic Study Gas–Gas Interactions Glow Discharge Binary Gas Mixtures
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2010/9/17
Emission spectra of constituent gas species from glow discharge plasmas using argon–helium, krypton–helium, argon–krypton, and krypton–argon gas mixtures were analyzed to elucidate collisional energy ...
X-ray Fluorescence Analysis of Cr6+ Component in Mixtures of Cr2O3 and K2CrO4
X-ray Fluorescence Analysis Cr6+ Component in Mixtures of Cr2O3 and K2CrO4
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2010/9/17
X-ray fluorescence analysis using Cr Kα spectra was applied to the determination of the mixing ratio of Cr6+ to (Cr6+ + Cr3+) in several mixtures of K2CrO4 and Cr2O3. Because the powder of K2CrO4 cont...
Potentiometric Determination of the Stability Constants of Lanthanide Complexes with Iminodiacetic Acid in Water and Dioxane-Water Mixtures
Iminodiacetic acid lanthanide(III) complexes stability constants dioxane-water mixtures
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2010/4/15
The protonation constants of iminodiacetic acid (H2 ida) and the stability constants of its complexes with Nd(III), Sm(III), Gd(III), Dy(III), and Er(III) ions at metal/ligand mole ratios of 1:1, 1:2,...
Volumetric, Ultrasonic and Transport Properties of Binary Liquid Mixtures Containing Dimethyl Formamide at 303.15 K
excess volume dimethyl formamide interferometer sound velocity viscosity molecular interaction
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2007/12/13
摘要 Excess volumes (VE), ultrasonic velocities (u), isentropic compressibility (∆Ks) and viscosities (η) for the binary mixtures of dimethyl formamide (DMF) with 1,2-dichlorobenzene, 1,3-dichloro...
Interpretation of Sorption Kinetics for Mixtures of Reactive Dyes on Wool
Dye adsorption Kinetic model Reactive dye
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2010/4/19
The equilibrium sorption isotherms of 3 reactive dyes (C. I. Reactive Yellow 84, C. I. Reactive Red 141, C. I. Reactive Blue 160) and their binary mixtures adsorbed on prewetted wool fiber were invest...
Potentiometric Studies on the Protonation Constants and Solvation of Some a-Amino Acid Benzyl- and t-Butyl- Esters in Ethanol-Water Mixtures
Potentiometry protonation constants solvent effect amino acid esters
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2010/4/20
To gain more information about the effect of solvent on a -amino acid benzyl- and t-butyl- esters, the stoichiometric protonation constants of 10 esters (glycine benzyl ester, L-alanine benzyl ester, ...
Genetic Multivariate Calibration Methods for Near Infrared (NIR) Spectroscopic Determination of Complex Mixtures
Near infrared spectroscopy Multivariate calibration Genetic algorithms Genetic Regression Partial Least Squares Classical Least Squares Inverse Least Squares
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2010/4/20
The simultaneous determination of ternary mixtures of methylene chloride, ethyl acetate, and methanol using near infrared (NIR) spectroscopy and 4 different genetic algorithms based multivariate calib...
The Protonation Constants of Some Aliphatic Alkylamines in ethanol-water Mixtures
Aliphatic amines potentiometry protonation constant ethanol-water mixtures
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2010/4/22
Protonation constants of methyl-, ethyl-, propyl- and butylamines Were determined potentiometrically using an electrode system calibrated in concentration units of hydrogen ion in ethanol-water mixtur...
The Second and Third Density Virial Coefficients of Six Ar-Ne Mixtures at 25.0°C
Ar--Ne mixtures second virial coefficient third virial coefficient
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2010/4/22
In this paper we present a detailed experimental study of fractions, xAr = 0.0821, 0.2727, 0.3618, 0.5838, 0.7722 and 0.9049 at 25.0°C. The pressures are measured with a dead -- weight tester. The den...
Vapour Liquid Equilibrium in Asymmetric Mixtures of n-Alkanes with Ethane
Vapour liquid equilibrium Interaction parameters Asymmetric mixtures
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2010/4/22
The paper presents a vapour liquid equilibria study in binary mixtures of n-alkanes with high dimensional asymmetry. Each mixture contains ethane and alkanes higher than eicosane. Calculations were do...
Determination of Ternary Mixtures of Vitamins (B1, B6, B12) by Zero-Crossing Derivative Spectrophotometry
Derivative spectrophotometry Vitamins B1 B6 B12
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2010/4/22
A new method for determining ternary mixtures of vitamin B1, B6 and B12 using second derivative spectrophotometry is described. The procedure is accurate, nondestructive and does not require any separ...
Determination of the Protonation Constants of Some Substituted Salicylideneanilines by the Spectrophotometric Method in Ethanol-Water Mixtures
Protonation constant titrimetry Schiff's base ethanol-water mixture potentiometric method spectrophotometric method
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2010/4/22
Protonation constants of salicylideneaniline and methyl-, ethyl-, methoxy- fluoro-, chloro-, bromo- and iodo- substituted salicylideneanilines were determined by spectrophotomeric titrimetry in 10, 30...