Document Details

Document Type : Article In Journal 
Document Title :
The Dissociation Constant of p-Nitroanilinium Ions in Water-Sulfolane Solvents at 25 C
ثابت التفكك لايون البارا ـ نيتروأنيلين في الماء ـ السيلفولان عند درجة حرارة 25 ْم
 
Subject : Chemistry & Biochemistry 
Document Language : English 
Abstract : The dissociation constants of p-nitroanilinium ions have been determined in water-sulfolane mixtures at 25?C using spectrophotometric method. The p(K)BH+ is found to decrease with progressive addition of sulfolane which indicates that the basicity of the medium is increased by the addition of sulfolane. The relative basicity of the medium is compared with other water-solvent mixtures and it is found that the basicity decreases in the order of: NMH-H2O > THF-H2O > DMF ? H2O > ECS-H2O > AN-H2O > Sulfolane ? H2O > HAc-H2O The acidity function, Ho, of HCl in H2O-sulfolane mixtures is also determined and is found to increase with increase of the organic solvent component for a fixed acid concentration. This is explained due to the salting in effect, which differs with the organic solvent. It showed a decrease in the order of: NMF > DMSO > DMF > Dioxan > ECS > EtOH = Acetone > Sulfolane. 
ISSN : 1012-1319 
Journal Name : Science Journal 
Volume : 15 
Issue Number : 1 
Publishing Year : 1423 AH
2003 AD 
Number Of Pages : 8 
Article Type : Article 
Added Date : Sunday, October 11, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
مشاعل الخالديM. A. AL-KHALDIResearcher  

Files

File NameTypeDescription
 22520.pdf pdf 

Back To Researches Page