Guest guest Posted January 15, 2003 Report Share Posted January 15, 2003 Marie, It appears that Stepan has a typo on their site. GMS SE is an O/W emulsifier. The sodium stearate or potassium stearate is the emulsifier in GMS Self Emulsifying. To try to give this an HLB would be difficult since the HLB system was developed to give chemists in working with nonionic emulsifiers and the product is anionic. For a best guess this would have an HLB approximately 15. Young KY Labs Innovators of Fine Personal Products www.kylabs.com GMS SE and HLB A couple of questions maybe someone can help with ... I've been using GMS (I believe it's Stepan Glyceryl Stearate Pure) and sodium stearate as the emulsion system in my creams. It creates a w/o emulsion. It's been stable and I like it. On the Stepan site, they list GMS Pure as having an HLB of 3.8. They have another product (which I have purchased) called GMS SE. It contains " potassium stearide " at about 5-6% with the GMS Pure. Their information sheet states that it can be used as a primary emulsifier and is use in o/w emulsions. They do not list the HLB value. So the questions ... Why would the GMS SE be for use in o/w emulsions when the HLB of GMS Pure only 3.8? (Am I missing something important?) Sodium Stearate is the sodium salt of stearic acid ... Potassium stearate would be the potassium salt of stearic acid ... what is potassium stearIDE? Where can I find the HLB level for Potassium stearate, sodium stearate (and other soaps)? Thanks, Marie Marie Gale Chandler's Soaps www.chandlerssoaps.com Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 15, 2003 Report Share Posted January 15, 2003 Thanks . Stepan does say the GMS SE is for o/w emulsions, but the spec sheet for GMS says that GMS Pure (no soaps added) has an HLB of 3.8 and when I've used it with sodium stearate I do end up with a w/o emulsion. Do soaps (ie sodium stearate or postassium stearate) make w/o or o/w emulsions? Marie Marie Gale Chandler's Soaps www.chandlerssoaps.com RE: GMS SE and HLB > Marie, > > It appears that Stepan has a typo on their site. GMS SE is an O/W > emulsifier. The sodium stearate or potassium stearate is the emulsifier > in GMS Self Emulsifying. To try to give this an HLB would be difficult > since the HLB system was developed to give chemists in working with > nonionic emulsifiers and the product is anionic. For a best guess this > would have an HLB approximately 15. > > Young > KY Labs > Innovators of Fine Personal Products > www.kylabs.com Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 16, 2003 Report Share Posted January 16, 2003 << AFAIK, there is no such thing as Potassium Stearide or Potassium Stearamide. Do you have additional info? >> Maurice, The only reference was on the Stepan Product Bulletin for Stepan GMS SE which says " " Stepan GMS SE is an anionic-modified ester made from the reaction of glyderin and triple pressed stearic acid that contains some potassium stearide. " According to product bulletin, the INCI Name is " Glyceryl Stearate SE " However, on the container itself, it says the product contains: Glyceryl Monostearate (CAS 123-94-4) Stearic Acid (CAS 57-11-4) Potassium Stearate (CAS 593-29-31) So I guess the Product bulletin should say Potassium StearATE, NOT potassium stearIDE. Another question on this ... What's the difference between Glyceryl Stearate and Glyceryl MONOstearate? And between GlycerYL Stearate and GlycerOL Stearate? Marie Marie Gale Chandler's Soaps www.chandlerssoaps.com Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 16, 2003 Report Share Posted January 16, 2003 >What's the difference between Glyceryl Stearate and Glyceryl MONOstearate? The name is the difference. Glyceryl Stearate is the INCI name. >And between GlycerYL Stearate and GlycerOL Stearate? Glycerol Stearate doesn't exist. Glycerol is another name for Glycerin. Glycol Stearate is an ester formed by reacting ethylene glycol and stearic acid. and Glyceryl Stearate is the monoester of glycerin and stearic acid. Maurice -------------------------------------------------------- Maurice O. Hevey Convergent Cosmetics, Inc. http://www.ConvergentCosmetics.com ------------------------------------------------------- Quote Link to comment Share on other sites More sharing options...
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