If pH of water is 2, out of soap and detergent which one you'll use for cleaning clothes? and why?

Asked by pulkithere1 | 29th Nov, 2010, 05:56: PM

Expert Answer:

Detergents can be easily used in acidic solution
As salts of weak acids, soaps are converted by mineral acids into free fatty acids:

CH3(CH2)16CO2-Na+ + HCl → CH3(CH2)16CO2H + Na+ + Cl-

These fatty acids are less soluble than the sodium or potassium salts and form a precipitate or soap scum. Because of this, soaps are ineffective in acidic water


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Answered by  | 30th Nov, 2010, 10:05: AM

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