Defining some scientific terms: Solubility, viscosity, surface tension, and interfaces

I’ve been trying to write some posts on silicones, surfactant thickeners, and esters for quite a while now, and I keep running into the issue that I need to define a bunch of terms before I can start. As I have a question from someone from the May Q&A that hasn’t been answered yet, I...

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Weekend Wonderings: Definitions for products?

In this post, Why did I buy this and what can I do with it? Foaming bath butter, N. Bax asks: Please, will you go through what the textual and other differences are for the following body moisturizers :Milk-up to 90% water, super thin lotionLotion-up to 70% water, Crème-up to 10% water, very thick “lotion” w/1...

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