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How work with emulsions w/o, o/w
Hi, I’m in novice emulsions, but they are very interesting to me and I would like to learn how to make high-quality emulsions oil-in-water and water-in-oil.
I would be grateful for any help.
Questions that interest me first:
1) how to determine the mixing temperature correctly, that is, at what temperature should the mixing be performed?
2) how to carry out the mixing process, immediately pour in or gradually, or maybe even like that?
3) how to mix properly, what is the intensity, how much time, whether to mix after removing from heat until partially cooled.
4) maybe it is worth mixing at the time of injection of one phase into another?
I ask you to treat these issues normally, since you are experienced chemists, and I am just a novice, but with a very great desire to learn.
Thank you in advance for all the help and tips -
19 Replies
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- W/O is not for beginners.
- O/W mix togeher and apply high shear. Temperature depends on materials and there is no one size fits all rule. -
I would take a look at some sites where you can find cosmetic formulas and see what procedures they follow to get started. It’s also going to be easier if you have a goal product in mind- do you want to make lotions, serums, pomades, cleansers??
Perry has links to where you can find cosmetic formulas to start, you can also look around on the forum and see what’s been posted here.
Answers to your questions are going to depend on the ingredients you have/ want to work with -
There are a few bloggers/sites that have some great content. One blog now requires a small subscription fee for more indepth resources, but she has a lot of great articles for beginners and advanced formulations etc. https://swiftcraftymonkey.blog/blog/
https://www.humblebeeandme.com/
Obviously, many of the formulas will be geared towards the home hobbiest, but will aquaint you to many of the more technical processes.
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@ngarayeva001 O/W mix togeher and apply high shear. Do you mean to mix well for a long time at high revs?
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@EVchem now i want to make waterbase pomades, but my emulsions not good…
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@Dirtnap1 thanks, i’ll learn it.
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@ngarayeva001, @Evchem, @Dirtnap1 Thank you all for answers.
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Well, if you use lanolin and a small amount of water, you can make w/o emulsions pretty easy.
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@ ngarayeva001 why do you consider W/O more difficult?
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@em88, agree. I was thinking about high internal phase W/O emulsions.
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@em88 i yyet dont use lanoline, how to use him?
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Also answer, do i must take distalated water for my emulsions? Am i wright?
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@ngarayeva001
Why wouldn’t W/O emulsions be for beginners? High internal phase or not? -
@Doreen because
-some of the materials have to be processed in a particular way (adding water by drops),
-not a lot of information can be found online,
-not too many good materials are available on DIY market (#wouldkillforeasinov :smiley: )
- not too many oil compatible thickeners
- some formulations are sensitive to processing (visocity changes depending on the temperature when phases were combined).This is my experience. Please correct me if I am wrong.
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- Adding water by drops can’t be done by a beginner?
- There is a lot of good information online, you just need to know where to look.
- Easynov isn’t the only W/O emulsifier out there.
- What ‘oil compatible thickeners’ do you mean that there aren’t too many of?
- That doesn’t solely count for W/O’s. -
BeardlyGentlemen said:@em88 i yyet dont use lanoline, how to use him?
Lanolin is a viscous emulsifier that can absorb about 200% water.
Working with lanolin is very easy, is similar as with petrolatum. -
@88, I look what i get in my country, this is 3 different lanoline: 1) water free lanoline, 2) lanoline and 3) dry lanolin. What can i use, thanks for answer.
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BeardlyGentlemen said:@88, I look what i get in my country, this is 3 different lanoline: 1) water free lanoline, 2) lanoline and 3) dry lanolin. What can i use, thanks for answer.
I’d go for anhydrous lanolin. First choice.
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