Base strengths in acetic acid-chlorohydrocarbon binary solvents

1972 ◽  
Vol 44 (2) ◽  
pp. 414-416 ◽  
Author(s):  
Orland W. Kolling
Keyword(s):  
2015 ◽  
Vol 13 (5) ◽  
pp. 1347-1357 ◽  
Author(s):  
Ahmed Kamal ◽  
Abdul Rahim ◽  
Sd Riyaz ◽  
Y. Poornachandra ◽  
Moku Balakrishna ◽  
...  

2-Styryl quinolines have been synthesized regioselectively from 2-methyl-quinoline using NaOAc in water acetic acid binary solvents and evaluated for their antibacterial activity against both Gram-positive and Gram-negative strains.


Author(s):  
Veronica O. Onyeocha ◽  
O.D. Akpan ◽  
Ikejiofor A. Onuchukwu ◽  
Maduabuchi A. Chidiebere

The dimerization of a solute dissolved in binary immiscible solvents shows that the value of the partition coefficient, kD of the solutes are influenced by the dimerization constant, K of the solute in one of the solvents according to the description: (C_X^A)/(C_X^B ) = kD + 2kD2KCxB where CxA and CxB are the concentrations of the solute x in the solvents A and B respectively. Both kD and K are parameters that predict the extent of beneficiation for most minerals. Also, kD is a fundamental parameter that determines the extent of solute recovery during solvent extraction. In this study, it is found that the order K kD and K kD are the effects for acetic and succinic acids respectively in the binary solvents composed of carbon tetrachloride/water and diethylether/water systems respectively. These results suggest that the distributions of these solutes in the solvents are accompanied by the formation of succinic anhydride which is more favoured than the dimerization of the acetic acid. Also, the changes in the values of distribution enthalpies, HD are corroborated to explain these experimental observations.


Author(s):  
N.C. Lyon ◽  
W. C. Mueller

Schumacher and Halbsguth first demonstrated ectodesmata as pores or channels in the epidermal cell walls in haustoria of Cuscuta odorata L. by light microscopy in tissues fixed in a sublimate fixative (30% ethyl alcohol, 30 ml:glacial acetic acid, 10 ml: 65% nitric acid, 1 ml: 40% formaldehyde, 5 ml: oxalic acid, 2 g: mecuric chloride to saturation 2-3 g). Other workers have published electron micrographs of structures transversing the outer epidermal cell in thin sections of plant leaves that have been interpreted as ectodesmata. Such structures are evident following treatment with Hg++ or Ag+ salts and are only rarely observed by electron microscopy. If ectodesmata exist without such treatment, and are not artefacts, they would afford natural pathways of entry for applied foliar solutions and plant viruses.


2001 ◽  
Vol 120 (5) ◽  
pp. A153-A153
Author(s):  
S MIYAMOTO ◽  
K KATO ◽  
Y ISHII ◽  
S ASAI ◽  
T NAGAISHI ◽  
...  

2004 ◽  
Vol 171 (4S) ◽  
pp. 94-94
Author(s):  
Yao-Chi Chuang ◽  
Naoki Yoshimura ◽  
Chao-Cheng Huang ◽  
Po-Hui Chiang ◽  
Michael B. Chancellor

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