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Mechanism of miscelle formation

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Posted by Dgf Chd 4 years, 1 month ago

Gaurav Seth 4 years, 1 month ago

Mechanism Of Micelle Formation-

Soap is the sodium or potassium salt of fatty acid and may be represented as RCOO^-Na (e.g. sodium stearate, (CH₃(CH₂)16COO^-Na⁺]) . Whendissolved into water , it dissociates into RCOO^- and Na⁺ ions

The RCOO^-ion consists of two parts – long hydrocarbon chain (also called non – polar tail) which is hydrophobic (water repelling ) and a polar group COO^- (polar head) which is hydrophilic (water loving )

At higher concentrations(CMC) RCOO- ions form an aggregate of spherical shape with the hydrocarbon chains pointing towards the centre and the COO- part facing outward on the surface of the sphere. This aggregate is called ionic micelle. It may have as many as 100 ions

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