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problem in makig SOAP BASE LIQUID FACE WASH
I am making soap base face wash with fatty acid .
the problem is, when I put the sample in room temperature its transparent but when I put it in little bit cold temperature about 10-15 degree Celsius its become freezed and looks like a white paste. after freezing when I put it again in room temperature its melt slowly and again become transparent as before
in our region average temperature is 5-20 Celsius in month of December and January
formulation is:
palmitic acid 0.5%
lauric acid 12.5%
myristic 2.5%
potassium hydroxide 5.13%
CAPB 6%
acrylate copolymer 10%
water to make 100please help me to resolve this problem, how can i control its freezing point.
thanks for reading -
8 Replies
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@UsmanAli It might be the case that not all of your fatty acids are completely neutralized. By the way, what’s your final pH?
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The problem you are experiencing is called the “cloud point.”
To solve it you have to find a way to reduce the cloud point of your system. Typically, this is done by adding some glycols. -
@ketchito the final PH is 9-10
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@Perry how to reduce cloud point please tell me. I haven’t experience in soap base face wash.
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“Typically, this is done by adding some glycols.”
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PROPYLENE GLYCOL 5% IS IN IT.
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Propylene Glycol is not in your ingredient list. But if 5% is in there, then you need to add more.
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@Perry
sir i have again with 8% propylene gglycol but its still happening
its freezed again at 15 degree celcius
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