Influence of nonideality of a ternary solvent on its extraction characteristics

1990 ◽  
Vol 55 (6) ◽  
pp. 1465-1471 ◽  
Author(s):  
Jana Ovečková ◽  
Elena Graczová ◽  
Július Surový
Keyword(s):  
Ethylene Glycol ◽  
Activity Coefficients ◽  
Diethylene Glycol ◽  
Mixed Solvent ◽  
Nrtl Equation ◽  
Kister Equation ◽  
The Ideal

Limiting selectivities and capacities for various compositions of the mixed solvent ethylene glycol (EG)-diethylene glycol (DEG)-N-methylpyrrolidone (NMP) with respect to toluene have been calculated from limiting activity coefficients of toluene and heptane. The calculations were made for both the ideal and real behaviour of the mixed solvent. The limiting activity coefficients of the model hydrocarbons toluene and heptane in the mixed solvent were calculated from experimentally determined binary coefficients of the Redlich-Kister equation, Wilson's equation as modified by Novak and co-workers, and the NRTL equation.

Applicability of the van Laar equation to correlation of strongly non-ideal systems

1979 ◽  
Vol 44 (12) ◽  
pp. 3490-3500
Author(s):  
Josef P. Novák ◽  
Eva Palacká ◽  
Petr Voňka ◽  
Jiří Pick
Keyword(s):  
Activity Coefficients ◽  
Suitable Choice ◽  
Wilson Equation ◽  
Nrtl Equation ◽  
Van Laar Equation ◽  
Kister Equation ◽  
Two Parameter

The performed analysis of the van Laar equation and its comparison with the results of analyses of the Redlich-Kister, NRTL and Wilson equations demonstrate that the Redlich-Kister equation have approximately the same range of applicability, the NRTL equation with a suitable choice of the parameter α allowing to attain higher limiting activity coefficients. For moderately asymmetric systems, the Wilson equation provides higher activity coefficients than other two-parameter equations but lower than the three-parameter ones. On the contrary, for very asymmetric systems, the Wilson equation allows to reach on the whole the highest limiting activity coefficients.

scholarly journals Activity of Alkanediol Alkanoates against Pathogenic Plant Fungi Rhizoctonia solani and Sclerotium rolfsii

2012 ◽  
Vol 7 (9) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Paraj Shukla ◽  
Suresh Walia ◽  
Vivek Ahluwalia ◽  
Balraj S. Parmar ◽  
Muraleedharan G. Nair
Keyword(s):  
Antifungal Activity ◽  
Ethylene Glycol ◽  
Rhizoctonia Solani ◽  
Diethylene Glycol ◽  
Sclerotium Rolfsii ◽  
Phytopathogenic Fungi ◽  
Dependent Manner ◽  
Acyl Chlorides ◽  
Mass Spectral ◽  
Dose Dependent

Thirty known dialkanoates of ethylene, propylene and diethylene glycols were synthesized by reacting the glycols with acyl chlorides and their structures confirmed by IR, NMR and mass spectral analyses. They exhibited significant antifungal activity against two phytopathogenic fungi Rhizoctonia solani Kuehn and Sclerotium rolfsii Sacc in a dose dependent manner. Propylene glycol dipentanoate was the most active against R. solani. followed by diethylene glycol dibutanoate and ethylene glycol dibutanoate. Against S. rolfsii ethylene glycol diheptanoate was found to be most active followed by diethylene glycol diisobutanoate As compared to the standard reference benomyl (EC50 5.16 μg/mL), the potential alkanediol dialkanoates showed EC50 in the range of 33 – 60 μg/mL.

scholarly journals Case Report of a Fatal Antifreeze Ingestion with a Record High Level and Impressive Renal Crystal Deposition

2016 ◽  
Vol 2016 ◽  
pp. 1-3 ◽  
Author(s):  
Heidi L. Erickson
Keyword(s):  
Case Report ◽  
Ethylene Glycol ◽  
Calcium Oxalate ◽  
Cerebral Edema ◽  
Diethylene Glycol ◽  
Significant Morbidity ◽  
Calcium Oxalate Crystal ◽  
Crystal Deposition ◽  
Autopsy Findings ◽  
High Level

Ethylene glycol, methanol, and diethylene glycol are readily available in many household and commercially available products. While these alcohols are relatively nontoxic themselves, their acidic metabolites are toxic and can result in significant morbidity and mortality. Herein we report a lethal case of massive ethylene glycol ingestion in a suicide with a record high level (1254 mg/dL) and images of the histologic examination of the kidneys revealing impressive calcium oxalate crystal deposition. Autopsy findings also showed evidence of mild cerebral edema.

Preparation of sodium and bisarenechromium fullendes containing esters of ethylene glycol, diethylene glycol, crown ethers, methoxyarenes, and N-ethyl-N-phenylbenzamide

2020 ◽  
Vol 69 (4) ◽  
pp. 751-757
Author(s):  
G. V. Markin ◽  
S. Yu. Ketkov ◽  
M. A. Lopatin ◽  
V. A. Kuropatov ◽  
A. S. Shavyrin ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Crown Ethers ◽  
Diethylene Glycol
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