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H] Differences between Soap & Synthetic detergent-
SOAP DETERGENT/Synthetic detergents
1. Made from animal fat/vegetable 1. Made from hydrocarbons got from
oil. coal/petroleum.
- - -
2. Ionic head is -COO . 2. Ionic head is -SO /-SO .
4
3
[Weak carboxylate ion] [Strong Sulphate/Sulphonate ion]
3. Forms SCUM with hard water. So 3. Does not form SCUM with hard
cannot clean well with Hard water. So cleans well with hard
water. water.
4. Has a weak cleaning action. 4. Has a strong cleaning action.
5. Is BIODEGRADABLE. 5. Is NON BIODEGRADABLE.
6. Does not make the skin rough. 6. Makes the skin rough on regular
use.
7. Example- a. Sodium stearate 7. Sodium n-dodecyl benzene
sulp
b. Sodium Oleate onate.
h
c. Sodium palmitate.
I] Cleansing action of soap/detergent-
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