belassi
Forum Replies Created
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The formula makes no sense, does not add up to 100% therefore it’s useless to comment.
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If the oils are going rancid you are using the wrong oils. Do the research.
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Just divide by 10,000. At a guess, it sounds biGGER.
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By the way, when I used DI water, none of those things were formed.
- You answered your own question. -
You must be using the wrong oils.
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No I haven’t made a sample yet. I was just costing and wondering whether a hand soap was worth the effort for $10.00 to make LOL!
If it’s for you, possibly. If for sale, no way. Personal experience. When customers can buy at retail a 250mL pump bottle of soap for $1, that’s what they will buy. -
You can try the ethanol route with Resveratrol but you will need to use an airless pump package or the ethanol slowly evaporates away and the Resveratrol precipitates out. Been there, done that…
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Since none of them have any visible effect, no, there’s not really any difference…
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and all the formulas are made with fatty acids!
- exactly. Not vegetable oils. -
I think your fundamental problem is the type of soap salts you have in there. For instance, a 30% potassium cocoate solution is a standard commercial item widely available. It is a clear low-viscosity liquid.
The very first thing I would have done, is to carefully examine the profile of whatever oils you’re saponifying and building a solubility table for each.
It appears to me that what’s happening to your soap is that one or more of the carboxylates is not very soluble and will only stay in solution at higher temperatures. I don’t think the problem can be readily solved unless you move to a more precise formulation, that is, saponifying only pure, free fatty acids, eg oleic acid, (but you’d first have to check the solubility, I have no idea) -
2% sodium benzoate is about five times too much and anyway, I see no pH adjustment so likely won’t work anyway.
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Ahhh,,, I am beginning to understand.
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Is there anything I can add or do?
- Yes. Use a different fragrance. -
QUOTE:
When alcohol 95% is mixed with Hydrogen Peroxide it will react forming acetic acid, no matter what is the dilution. In concentrated form it will react violently, confirming reactivity. In dilute solution the reaction also depends on the exposure to sunlight as well, UV rays. So academically, the answer is yes, both will react, extent differs on conditions.I fully disagree with hand sanitizers containing peroxides. as per WHO recipes. WHO is poor in chemistry, so beware of WHO recommendations! The sanitizers will change with time as it does not contain any UV blocker. I have come across a formulation from G.B. it is wonderful, well balanced formulation.
(from stack exchange) -
You won’t get the whole formula through the membrane, or it will take forever. You’ll be insane in the membrane, insane in the brain! You can hardly autoclave the container anyway… I guess you could use a hydrogen peroxide bath… sounds expensive and risky. (H2O2 freaks me out. I am hyper-aware of all the unstable, explosive peroxides that can accidentally be created.)
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The (very expensive) pea-sprout polypeptides I use in our anti-aging cream turn into pea spup if added to a hot solution, as I discovered to my cost, having to throw out an entire batch. Kind of like, from green translucent egg white to cooked egg white.
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Well, you’re made of protein. Would you prefer to be added to the cool down phase, below 40C? Or the heated water phase?
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You don’t need to sterilise containers that are filled with a sanitiser!
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I read CMEA is an older option to cocamidopropyl betain and hydroxysultaine. What are your opinions on these three, which one is better performing?
That would surprise me. CMEA is not that soluble. The practical limit is around 2% or under; I use 1.5% as a foam booster and thickener. I’ve not tried hydroxysultaine so I cannot comment on it. -
Surfactants vary greatly in their cleansing ability. SLS is one of the stronger ones. While it’s true they can strip lipids from the skin, that’s why we design using a combination of surfactants. PEG7GC is a refattener, used mainly to counteract that effect. I can’t say why you’re having trouble with the thickeners. I use PEG-150 distearate and CMEA.
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good post
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I tried a few combinations of Decyl Glucoside, Coco-Glucoside, Cocamidopropyl Betaine. I was avoiding anionics for their “harshness”.
- “anionic” and “harshness” are not related. You chose horrible surfactants in my opinion. -
Im measuring TEA in ml
- No, this is still not correct. Work in grams. The only time you use volumetric measure when preparing a sanitiser is when measuring the alcohol and water components. Weigh the carbomer and use the appropriate recommended amount of TEA. -
To begin, 1% EO is at least ten times the amount you should be using.
Secondly you are not doing this in a science based way. We do not measure things in ‘drops’ and ‘to bring pH up’ is not the way. Use the manufacturer’s recommendation for neutralisation. -
It’s possible the rosewater contains natural preservatives but that does not remove the need to preserve it.