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Woow Salt (Nacl) is a foam stabilizer?!!!
Searching the truth I made a researchment about the relation between the concentration of Na CL and foam then the result was really surprising for me ( I had hearing for years that salt destroy foam without any explanation or scientific reference and that is the half of truth) as resume there is critical concentration not CMC where below it Nacl decrease foam’s stability and above that concentration increase the foam’s stability
Remark : the reaserchement was done for AOS then personally I can’t generalize it for all surfactants however it will be good line of reaserchement to see the effect of Nacl concentration on the foam’s stability of different surfactants.https://www.sciencedirect.com/science/article/abs/pii/S0920410519312872
In my way I find amazing article from our lovely forum explaining how NaCl thick the liquid soap
https://chemistscorner.com/why-does-salt-thicken-shampoos/
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