Ethanol as a blending component for petrol - Determination of total acidity - Colour indicator titration method

2021 ◽  
Keyword(s):  
Total Acidity ◽  
Titration Method

scholarly journals Determination of Surface Acidity on The Natural and Synthetic Montmorillonite Clays by Titration Method

2021 ◽  
Vol 9 (2) ◽  
pp. 94-98
Author(s):  
Serly J. Sekewael
Keyword(s):  
Surface Acidity ◽  
Acid Sites ◽  
Total Acidity ◽  
Ftir Analysis ◽  
Acid Base ◽  
Absorption Bands ◽  
Titration Method ◽  
Montmorillonite Clays ◽  
Natural And Synthetic

Determination of surface acidity on the natural and synthetic montmorillonite clays has been carried out using the acid-base titration method to count the number of bound acid sites per gram of clay. The total acidity of natural and synthetic montmorillonite surfaces obtained was 4.67 and 5.33 mmol/g, respectively. FTIR analysis results indicate the presence of functional groups from the tetrahedral and octahedral constituents. Both samples have similar absorption patterns. The similarity of absorption patterns was followed by a decrease in intensity and shift in some absorption bands, and the appearance of new absorption bands.

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