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What causes a thickening of an O/W emulsion at high temperature where the contrary happens at 4°C ?
Is there any way that I can prevent my simple oil in water emulsion (Moisturising lotion) from significant increase of viscosity at high temperatures 40-45°C where a significant thinning happens at 4°C? causes?
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1 Reply
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Without knowing what’s in the formula you won’t get much helpful advice.
I can say that some surfactant systems get thinner at lower temperatures. It really just depends on the system.
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