scholarly journals Influence of Inorganic Salts and pH on Surface Activity of Biodegradable Amido Gemini Amine Oxide Surfactant

2021 ◽  
Author(s):  
Duojiao Fu ◽  
Xinru Jia ◽  
Ran Wei ◽  
Hongqin Liu ◽  
Baocai Xu
Keyword(s):  
Surface Activity ◽  
Amine Oxide ◽  
Inorganic Salts

Surface Activity Research of Cationic Gemini Surfactants

2013 ◽  
Vol 690-693 ◽  
pp. 2076-2080
Author(s):  
Zhen Zhong Fan ◽  
Lan Lan Li ◽  
Li Feng Zhang ◽  
Qing Wang Liu
Keyword(s):  
Surface Tension ◽  
Critical Micelle Concentration ◽  
Surface Activity ◽  
Surfactant Concentration ◽  
Gemini Surfactant ◽  
Gemini Surfactants ◽  
Ph Value ◽  
Inorganic Salts ◽  
Cationic Gemini Surfactant ◽  
Cationic Gemini Surfactants

Cationic Gemini surfactant concentration, the inorganic salts added and the pH value of surface tension obtained cationic gemini surfactant critical micelle concentration is 0.4mmol / L;by adding three kinds of inorganic salts NaCl, MgCl2, and Na2SO4 ,which Na2SO4 has the greatest impact on surface tension, followed by MgCl2.The surface minimum tension of the pH ranged from 9 to 11 , indicating that the surface activity of cationic gemini surfactants achieved the highest.

Surface Activity Research of Cationic Gemini Surfactants

2013 ◽  
Vol 652-654 ◽  
pp. 1450-1454
Author(s):  
Zhen Zhong Fan ◽  
Lan Lan Li ◽  
Li Feng Zhang ◽  
Qing Wang Liu
Keyword(s):  
Surface Tension ◽  
Critical Micelle Concentration ◽  
Surface Activity ◽  
Surfactant Concentration ◽  
Gemini Surfactant ◽  
Gemini Surfactants ◽  
Ph Value ◽  
Inorganic Salts ◽  
Cationic Gemini Surfactant ◽  
Cationic Gemini Surfactants

Cationic Gemini surfactant concentration, the inorganic salts added and the pH value of surface tension obtained cationic gemini surfactant critical micelle concentration is 0.4mmol / L;by adding three kinds of inorganic salts NaCl, MgCl2, and Na2SO4 ,which Na2SO4 has the greatest impact on surface tension, followed by MgCl2.The surface minimum tension of the pH ranged from 9 to 11 , indicating that the surface activity of cationic gemini surfactants achieved the highest.

scholarly journals Неоствальдовское поведение дисперсных систем в процессах испарения и кристаллизации капель водно-органических растворов

2020 ◽  
Vol 90 (6) ◽  
pp. 879
Author(s):  
Е.Н. Федосеева ◽  
В.Б. Федосеев
Keyword(s):  
Chemical Composition ◽  
Organic Compounds ◽  
Surface Activity ◽  
Small Volume ◽  
Ostwald Ripening ◽  
Inorganic Salts ◽  
Size Distributions ◽  
Dispersed Systems ◽  
Water Solutions ◽  
Water Based

In this paper, experiments with water-based solutions of some organic compounds, which demonstrate non-Ostwald behavior have been described. Small-volume droplets demonstrate higher stability during evaporation and crystallization in comparison with larger ones, such an effect has been previously described only for water-based solutions of inorganic salts. It has been shown that non-Ostwald behavior has the same thermodynamic nature with Ostwald ripening and could occur in dispersed systems of a complicated chemical composition. Peculiar realization of such phenomena driven by surface activity of organic compounds in water solutions has also been described. The studied regularities could be used to obtain solutions of organic and bioorganic substances with concentrations significantly higher than their solubility limits under normal conditions as well as to reproduce narrow size distributions of droplets in various spray technologies.

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