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Is Caprylic Capric Triglycerides not compatible with iso propyl myristate?
Is Caprylic Capric Triglycerides not compatible with iso propyl myristate?
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37 Replies
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In what way do you mean - physically or chemically?
There is no chemical incompatibility and as for physical compatibility, test that for yourself by mixing the two materials together
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@johnb
I made a cream with IPM it has becom good but when i had made a cream with combination of cctg and ipm it has separated -
I doubt it’s incompatibility between those two materials but a problem with the formula you are using.
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@johnb
Oil Phase contain Stearic acid, Cetyl alcohol, IPM, CCTG, GMS, Kojic dipalmitate & LLP -
HLB value required for CCTG is 5 and for IPM is 11.5.Is there any problem?
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And the emulsifier is?
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@johnb
Emulsifier is Polyacrylamide & C13-14 Isoparaffin & Laureth-7. -
It is cold preocess emulsifier so we added it in last stage.
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I am not familiar with Sepigel 305 but, from what I have read, it is best mixed with the oil phase when forming the emulsion.
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@Shubh123 the HLB value you’ve quoted for caprylic/capric triglycerides is for a W/O emulsion - the figure for O/W is closer to 12
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@johnb
ok. I will mix it in oil Phase. -
@Bill_Toge
Thnx! I am prepairing o/w emulsion based cream -
@Bill_Toge
Still getting problem.
Firstly the emulsion is prepapred after few mintues it breaks. Water is separated.
Water Phase is
Water
Microcrystalline Cellulose and xanthum gum-1%
Glycerine-2%
EDTA-0.1%
Oil Phase is
LLP-3%
IPM-5
KAD-4
SILISILY-2
CETYL ALCOHOL-1.5
stearic acid-3
Gms-3
coated TiO2-1 -
I don’t get what is Silysily, secondly why the coated pigment here. Third I still feel an acute need of a proper emulsifier here, have you read the compatibility and incompatibility of KAD with your formula ingredients.
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@Chemist77
Sorry, Silysily is Hydrogenated Polyisobutane. I enter trade name by mistake.. Coated pigment for whitening. I remove KAD but still the emulsion is breaking. What u suggest?What should i do? -
the fact there’s no high HLB emulsifier will be a major contributor to instability; try adding ceteareth-20 or an anionic emulsifier
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@Bill_Toge
I am using anionic cold process emulsifier Polyacrylamide & C13-14 Isoparaffin & Laureth. i am adding it in last stage. I tried this emulsifier in oil phase but still not satisfied. -
@Bill_Toge
I reach at new stage that after breaking emulsion if i mixed it for 45min. it again form a good emulsion. How is it possible? -
You mentioned Polyacrylamide & C13-14 Isoparaffin & Laureth-7 earlier. This does not appear in your later postings.
As Bill points out, there is no emulsifier present. The Polyacrylamide & C13-14 Isoparaffin & Laureth-7 is not an effective emulsifier alone - even it is actually present. It is described by the manufacturer as “Sepigel 305 is a thickening, stabilizing, liquid, ready-to-use polymer.”
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@johnb
sorry Si! I forgot to mention. i tried Polyacrylamide & C13-14 Isoparaffin & Laureth-7 in oil phase as u say but still getting same result. But now i mixed that emulsion for 45min again the emulsion is formed -
You seem to be ignoring the absence of an emulsifier.
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@johnb
Which emulsifier should i use? -
It is rather late in the progression of this saga to be asking which emulsifier should be used. That ought have been one of the priorities when you first began thinking about the product.
I can’t really give any recommendations about a choice of emulsifier as I don’t know enough about your aims or about what is available to you. Also, I would not have produced a formulation like the one you are querying so it is “out of my comfort zone”.
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@johnb
OK Sir! -
The problem is with microcrystalline cellulose and xanthum gum.
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