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Home Cosmetic Science Talk General CMC of mixed surfactants compared to one surfactant alone

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  • CMC of mixed surfactants compared to one surfactant alone

    Posted by Abdullah on January 15, 2023 at 5:26 am

    According to Stepan, cmc of ALPHA-STEP® PC-48(Sodium methyl 2-sulfolaurate (and) Disodium
    2-sulfolaurate) is 177 and CMC of LATHANOL® LAL Powder(Sodium lauryl sulfoacetate) is 131. But CMC of STEPAN-MILD® PCL( blend of Sodium methyl 2-sulfolaurate (and) Disodium

    2-sulfolaurate (and) Sodium lauryl sulfoacetate) is 65, that is a big decrease in CMC of mixture. 
    My questions are 
    1. If we combine two surfactants A+B, will CMC be equal to CMC of A+B or different? 
    2. CMC of SLS is 185 and CMC of SLES is 171. If we use a 1:1 blend of SLS: SLES, will the CMC be 178 or anything else? 
    3. Do you know what is the CMC of SLS: SLES blend, specially 1:1 blend? 
    Abdullah replied 4 months, 1 week ago 1 Member · 0 Replies
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