scholarly journals Physico-Chemical Investigations in the Amide Group

1906 ◽  
Vol 25 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Charles E. Fawsitt

Some time ago, while studying the chemical dynamics of the changes which occur in solutions of urea or carbamide, I came upon some rather unexpected results which led me to hope that investigations conducted on somewhat the same lines with other substances of the amide group might prove to yield results of some interest. The amides referred to are those derived from carboxylic acids. While proceeding to this investigation I noticed some measurements, obtained in connection with the viscosity of aqueous solutions of carbamide, which appeared of sufficient interest to demand an inquiry into the nature of solutions of this class of substances before proceeding further with the subject of inquiry in the manner at first intended.

2021 ◽  
pp. 117329
Author(s):  
Adewale O. Oladipo ◽  
Lesego G. Modibedi ◽  
Solange I.I. Iku ◽  
Karin de Bruyn ◽  
Thabo T.I. Nkambule ◽  
...  

2018 ◽  
Vol 193 ◽  
pp. 327-344 ◽  
Author(s):  
Anusha Chandra ◽  
Jogi Ganesh Dattatreya Tadimeti ◽  
E. Bhuvanesh ◽  
Darshak Pathiwada ◽  
Sujay Chattopadhyay

2015 ◽  
Vol 12 (1) ◽  
pp. 148-156
Author(s):  
Baghdad Science Journal

The subject of this research involves studying adsorption to removal herbicide Atlantis WG from aqueous solutions by bentonite clay. The equilibrium concentration have been determined spectra photometry by using UV-Vis spectrophotometer. The experimental equilibrium sorption data were analyzed by two widely, Langmuir and Freundlish isotherm models. The Langmuir model gave a better fit than Freundlich model The adsorption amount of (Atlantis WG) increased when the temperature and pH decreased. The thermodynamic parameters like ?G, ?H, and ?S have been calculated from the effect of temperature on adsorption process, is exothermic. The kinetic of adsorption process was studied depending on Lagergren ,Morris ? Weber and Rauschenberg equations.


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