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AAT Bioquest

What are the physical properties of the base?

Posted March 13, 2024


Answer

Bases have very distinctive physical properties that set them apart from acids. Bases feel soapy or slippery to the touch and have a bitter taste. They conduct electricity when dissolved in water. 

Bases turn red litmus paper blue but do not change the color of blue litmus paper. They turn pink when Phenolphthalein is added to the solution. 

Additional resources

Photophysical properties of Schiff's bases from 3-(1,3-benzothiazol-2-yl)-2-hydroxy naphthalene-1-carbaldehyde

Intracellular pH

Weak Base pH Calculator