The Determination of Water in Organic Liquid Mixtures

1939 ◽  
Vol 61 (2) ◽  
pp. 524-525 ◽  
Author(s):  
R. A. Day ◽  
Robert N. Pease
Keyword(s):  
Organic Liquid ◽  
Liquid Mixtures

Pervaporation of organic liquid mixtures through membranes of polyimides containing methyl-substituted phenylenediamine moieties

1994 ◽  
Vol 95 (2) ◽  
pp. 161-169 ◽  
Author(s):  
Nozomu Tanihara ◽  
Kazuhiro Tanaka ◽  
Hidetoshi Kita ◽  
Ken-ichi Okamoto
Keyword(s):  
Organic Liquid ◽  
Liquid Mixtures

scholarly journals Noninvasive Determination of the Amount of Ethanol in Liquid Mixtures by Ultrasound Using Bilinear Interpolation Method

2019 ◽  
Vol 64 (1) ◽  
Author(s):  
Ahmet Aydın ◽  
Cemil Keskinoğlu ◽  
Umut Kökbaş ◽  
Abdullah Tuli
Keyword(s):  
Ethanol Concentration ◽  
Liquid Mixture ◽  
Interpolation Method ◽  
Ultrasonic Method ◽  
Liquid Mixtures ◽  
Water Mixture ◽  
Bilinear Interpolation ◽  
Destructive Effect ◽  
El Sistema

Ultrasound is used in many analysis studies, including liquid mixtures. Many mixtures are analyzed to understand their contents or properties in different situations. One of these mixtures is the ethanol-water combination. In this study, the amount of ethanol in the liquid mixture was determined noninvasively by the ultrasonic method using a microcontroller-based system. The results show that the measurements obtained were within the p<0.05 confidence interval. The characteristics evaluation of the system shows that the system can detect ethanol concentration as low as 0.552 g/L, thus the system has a broad and linear determination range for ethanol. Although the system is calibrated and tested with ethanol-water mixture, it can be used for any mixture that changes density related to the substance concentration, including different alcohols which are soluble in water (glycols, glycoethers, etc.) or any other material (solid or liquid) which is soluble in alcohol or different liquid solvent. The system has so many advantages that make it possible to use comfortably in many areas where the amount of ethanol contained in the mixture is essential. These advantages are the high accuracy and sensitivity, being noninvasive, portable, and not having a destructive effect on the substance.   Resumen. El ultrasonido es utilizado en muchos estudios incluyendo las mezclas liquidas. Se analizan varias mezclas para entender sus contenidos y propiedades en diferentes situaciones. Una de estas mezclas es la combinación de etanol-agua. En este estudio, la cantidad de etanol en la mezcla líquida fue determinada de manera no invasiva con el método ultrasonico utilizando un sistema basado en microcontrolador. Los resultados muestran que las mediciones obtenidas se encontraban dentro de un intervalo de confianza de p<0.05. Las características de evaluación del sistema muestran que se puede detectar etanol a una concentración tan baja como 0.552 g/L, por lo tanto, el sistema tiene un rango de determinación linear amplio para etanol. Aunque el sistema se calibra y prueba con mezcla de etanol-agua, puede ser utilizado para cualquier mezcla que cambia de densidad en relación con la concentración de la substancia, incluyendo diferentes alcoholes que son solubles en agua (glicoles, glicoeteres, etc) o cualquier otro material (sólido o líquido) que sea soluble en alcohol o en algún solvente líquido diferente. El sistema tiene muchas ventajas que hacen posible su utilización en muchas áreas donde la cantidad de etanol contenida en la mezcla es esencial. Estas ventajas son de alta precisión y sensiblididad al ser no invasivo, portátil y al no tener un efecto destructivo sobre la sustancia.

Behavior of Volatile Organic Liquid Mixtures in the Soil Environment

1998 ◽  
pp. 37-58 ◽  
Author(s):  
B. Yaron ◽  
I. Dror ◽  
E. Graber ◽  
J. Jarsjo ◽  
P. Fine ◽  
...  
Keyword(s):  
Organic Liquid ◽  
Liquid Mixtures ◽  
Soil Environment ◽  
Volatile Organic

Underliquid Superlyophobic Copper-Coated Meshes for the Separation of Immiscible Organic Liquid Mixtures

2019 ◽  
Vol 11 (31) ◽  
pp. 28370-28376 ◽  
Author(s):  
Zhihong Zhao ◽  
Yongqian Shen ◽  
Haidong Yang ◽  
Jian Li ◽  
Lin Guo
Keyword(s):  
Organic Liquid ◽  
Liquid Mixtures

A dual underliquid superlyophobic surface in organic media for on-demand separation of immiscible organic liquid mixtures

2019 ◽  
Vol 55 (92) ◽  
pp. 13876-13879 ◽  
Author(s):  
Yihan Sun ◽  
Jinxia Huang ◽  
Zhiguang Guo
Keyword(s):  
Organic Liquid ◽  
Liquid Mixtures ◽  
Organic Liquids ◽  
Organic Media ◽  
On Demand

A facile protocol was developed for preparing a dual underliquid superlyophobic surface for the on-demand separation of immiscible organic liquids.

Application of Continuous Thermodynamics Method to Fuel Droplet Evaporation

2012 ◽  
Author(s):  
Way Lee Cheng ◽  
Cai Shen ◽  
Chia-fon F. Lee
Keyword(s):  
Liquid Phase ◽  
Effective Properties ◽  
Liquid Mixtures ◽  
Droplet Evaporation ◽  
Distribution Functions ◽  
Homogeneous Groups ◽  
Novel Approach ◽  
Proposed Model ◽  
Complex Liquid

A finite diffusion droplet evaporation model for complex liquid mixture composed of different homogeneous groups is presented in this paper. Separate distribution functions are used to describe the composition of each homogeneous group in the mixture. Only a few parameters are required to describe the mixture. Quasi-steady assumption is applied in the determination of evaporation rates and heat flux to the droplet, and the effects of surface regression, finite diffusion and preferential vaporization of the mixture are included in the liquid phase equations using an effective properties approach. A novel approach was used to reduce the transport equations for the liquid phase to a set of ordinary differential equations. The proposed model is capable in capturing the vaporization characteristics of complex liquid mixtures.

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