Chemistry Thursday: Carboxylic acids – monounsaturated long chain fatty acids, oleic acid (C18:1), and saponification, part 25

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Welcome back to this beginners’ chemistry series! I hope you’re enjoying it so far. I know I am! Let’s talk more about carboxylic acids, specifically the fatty acids we encounter over and over again in our liquid oils, solid oils, butters, and waxes. This week, we’re getting into unsaturated C18:1 fatty acids, like oleic, vaccenic,...

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Tips & techniques: Why do we need to add water back to the water phase of an emulsion if it evaporates?

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I was on a Facebook group this weekend where this question was posed, “Do you need to add the evaporated water back to the lotion?”, referring to the water that was lost as we heated and held the heated water phase when making an emulsion. The short answer is heck, yes! The longer answer is...

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Emulsifiers you will love: Sodium stearoyl glutamate (aka Eumulgin SG), part four – using naturally compliant preservatives, plus information on measuring and adjusting pH with a short video! 

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A beaker containing white powder - the emulsifier Eumulgin SG - sits oh the edge of a digital scale

Welcome to part four of this short series on using Eumulgin SG (INCI: Sodium stearoyl glutamate). In today’s post, we’ll be looking at some naturally compliant and non-conventional preservatives to see if they’ll work in the formula. In part one, we met this emulsifier: Emulsifiers you will love: Sodium stearoyl glutamate (aka Eumulgin SG), ingredient...

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Discussion: Dessert- and sweet-themed fragrances are in this year! What are your favourite fragrances for this summer? And find links to some of my favourite formulas!

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Finally, it’s my time to shine! I love food-related fragrance oils, and they’re all the rage this year! Read about this a bit in Forbes. (Warning: It is full of pop ups and ads and distracting things.) The yucca & cornsilk conditioning shampoo for normal to oily hair you see below smelled of Tropical Meringue...

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Chemistry: Carboxylic acids – long chain fatty acids (stearic acid, C18:0) and a bit on triglycerides, part 24

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Stearic acid in a tin plate, which is a white flaky solid.

Welcome back to this beginners’ chemistry series! I hope you’re enjoying it so far. I know I am! Let’s talk more about carboxylic acids, specifically the fatty acids we encounter over and over again in our liquid oils, solid oils, butters, and waxes. In part 21 of this series – carboxylic acids – we met...

This content is for Foundation, Formulation, and Innovation members only.
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