Comments on: HLB – The Easiest Way to Create An Emulsion http://chemistscorner.com/hlb-the-easiest-way-to-create-an-emulsion/ Cosmetic science resource site where you can learn all about cosmetic chemistry Mon, 21 May 2012 15:01:57 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: Kelly http://chemistscorner.com/hlb-the-easiest-way-to-create-an-emulsion/#comment-7916 Kelly Tue, 10 Apr 2012 17:32:36 +0000 http://chemistscorner.com/?p=138#comment-7916 While it looks like your HLB is balanced, that's quite a lot of emulsifier. Start with 2 to 4%. Also, is glycerin the only component of your external phase? If so the HLB method may not be a good predictor for stability. While it looks like your HLB is balanced, that’s quite a lot of emulsifier. Start with 2 to 4%. Also, is glycerin the only component of your external phase? If so the HLB method may not be a good predictor for stability.

]]> By: Alia sina http://chemistscorner.com/hlb-the-easiest-way-to-create-an-emulsion/#comment-7906 Alia sina Mon, 09 Apr 2012 09:30:37 +0000 http://chemistscorner.com/?p=138#comment-7906 Hi there, i have aproblem in mixing jojoba oil & glycerin using Tween 80 at 8% & span 8o at12 % the emulsion separate , did Iuse the right emulsifier or the % is wrong please repply & many thanks Hi there, i have aproblem in mixing jojoba oil & glycerin using Tween 80 at 8% & span 8o at12 % the emulsion separate , did Iuse the right emulsifier or the % is wrong please repply & many thanks

]]> By: George p http://chemistscorner.com/hlb-the-easiest-way-to-create-an-emulsion/#comment-7859 George p Mon, 02 Apr 2012 21:44:25 +0000 http://chemistscorner.com/?p=138#comment-7859 Hi all I want to ask if there is any negative effect of using too much emulsifier in a water in oil cream( except for paying more money) I mean can excess emulsifiers cause instability??? One of my experiments has shown that using 3% of sorbitan sesquioleate is less stable than using 2% !!!! Can any one answer or guide me? Second, I want to ask about cooling phase, should it be done in very cold water bath and done quickly or it is better to cool the cream slowly !!! Please help me ? Thanks in advance George Hi all
I want to ask if there is any negative effect of using too much emulsifier in a water in oil cream( except for paying more money)

I mean can excess emulsifiers cause instability???

One of my experiments has shown that using 3% of sorbitan sesquioleate is less stable than using 2% !!!!

Can any one answer or guide me?

Second, I want to ask about cooling phase, should it be done in very cold water bath and done quickly or it is better to cool the cream slowly !!!

Please help me ?

Thanks in advance

George

]]> By: Kelly Dobos http://chemistscorner.com/hlb-the-easiest-way-to-create-an-emulsion/#comment-7856 Kelly Dobos Mon, 02 Apr 2012 17:49:23 +0000 http://chemistscorner.com/?p=138#comment-7856 Whoa! You have an old ICI publication? I'm jealous. Whoa! You have an old ICI publication? I’m jealous.

]]> By: Dennis A http://chemistscorner.com/hlb-the-easiest-way-to-create-an-emulsion/#comment-7855 Dennis A Mon, 02 Apr 2012 17:46:35 +0000 http://chemistscorner.com/?p=138#comment-7855 You can make some VERY approximate estimates by observing solubility in water as follows: Dispersability HLB Range None in water 1-4 Poor 3-6 Milky w/ vigorous agitation 6-8 Stable milky dispersion 8-10 Translucent 10-13 Clear solution 13+ (copied without permission from ICI publication "The HLB System") You can make some VERY approximate estimates by observing solubility in water as follows:

Dispersability HLB Range
None in water 1-4
Poor 3-6
Milky w/ vigorous agitation 6-8
Stable milky dispersion 8-10
Translucent 10-13
Clear solution 13+

(copied without permission from ICI publication “The HLB System”)

]]> By: Kelly Dobos http://chemistscorner.com/hlb-the-easiest-way-to-create-an-emulsion/#comment-7854 Kelly Dobos Mon, 02 Apr 2012 17:34:32 +0000 http://chemistscorner.com/?p=138#comment-7854 You would need to know the structure of your surfactant, and keep in mind, HLB applies to ethoxylated nonionic surfactants. I'm not familiar with biosurfactant structures, so I don't know whether the HLB method applies. You would need to know the structure of your surfactant, and keep in mind, HLB applies to ethoxylated nonionic surfactants. I’m not familiar with biosurfactant structures, so I don’t know whether the HLB method applies.

]]> By: solomon http://chemistscorner.com/hlb-the-easiest-way-to-create-an-emulsion/#comment-7852 solomon Mon, 02 Apr 2012 16:55:37 +0000 http://chemistscorner.com/?p=138#comment-7852 Hi all, i want to create different conditions and substrates for biosurfactant production by a Bacillus subtilis strain. How do i determine the HLB value of the biosurfactants that will be produced? Hi all,
i want to create different conditions and substrates for biosurfactant production by a Bacillus subtilis strain. How do i determine the HLB value of the biosurfactants that will be produced?

]]> By: sajida http://chemistscorner.com/hlb-the-easiest-way-to-create-an-emulsion/#comment-7777 sajida Wed, 28 Mar 2012 10:09:27 +0000 http://chemistscorner.com/?p=138#comment-7777 i want to know which emulsifiers aresuitable to dissolve perraffin in silicone/water emulsion.as perraffin oils are non polar so kindly do guid me? i want to know which emulsifiers aresuitable to dissolve perraffin in silicone/water emulsion.as perraffin oils are non polar so kindly do guid me?

]]> By: Geo http://chemistscorner.com/hlb-the-easiest-way-to-create-an-emulsion/#comment-7411 Geo Tue, 28 Feb 2012 19:08:27 +0000 http://chemistscorner.com/?p=138#comment-7411 hey phum ... would u please explain ur question more ... sorry for that but i didn't get the question to answer u ! hey phum … would u please explain ur question more … sorry for that but i didn’t get the question to answer u !

]]> By: phum http://chemistscorner.com/hlb-the-easiest-way-to-create-an-emulsion/#comment-7401 phum Tue, 28 Feb 2012 12:49:19 +0000 http://chemistscorner.com/?p=138#comment-7401 Hello,George How can I make an easiest way to make an emulsifier? P.S.I want the answer fastest as you can. Phum Hello,George
How can I make an easiest way to make an emulsifier?

P.S.I want the answer fastest as you can.

Phum

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