Forum Replies Created

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  • Chemist77

    Member
    January 27, 2016 at 8:36 am in reply to: Need custom formula skin care with probiotics

    @probioticqueen

    Check CLR, they have some good ones.
  • Chemist77

    Member
    January 7, 2016 at 8:08 am in reply to: Thixotropy behaviour

    Polyvinyl Alcohol is a polymer and behenyl alcohol is a fatty alcohol, so no. You can try probably Sodium polyacrylate and see if it helps. 

  • Chemist77

    Member
    January 6, 2016 at 4:23 am in reply to: airless carbomer gel ?

    @angelz That’s the cheapest carbomer you are using and if you want to upgrade then Ultrez is not  cheap option (IIRC 4-6 times costlier). 

  • Chemist77

    Member
    January 6, 2016 at 4:21 am in reply to: Stability problem of Soap based face wash

    I am working on the same concept though my product is soap based hand wash. As @Belassi said remove the glycol and recalculate the alkali needed. Also the pH of such soaps is very important as a higher pH will definitely keep the fatty acid and alkali soap stable. I have surfactants also in my liquid soap and you can imagine how complicated it becomes then to stabilize the emulsion. 

    I have used a polymer to stabilize the emulsion and my fatty acids include 12/14/16, the polymers I used in 2 different trials were Aculyn 33A (ASE polymer) & Aculyn 88 (HASE polymer). 
    At 10 days the formulae are still stable though I do it at 43C. 
  • Chemist77

    Member
    January 5, 2016 at 11:14 am in reply to: airless carbomer gel ?

    Which carbomer are you going to use, the ones with short flow will have persistent air bubbles but as @ashish pointed out try to mix very slowly although I am not sure if slow mixing wouldn’t be a disadvantage??

  • Chemist77

    Member
    January 1, 2016 at 2:57 pm in reply to: Hydroxyethylcellulose and phenoxyethanol

    Think they are, but it has low water solubility so keep it less than 1% I mean phenoxyethanol. Also please bear in mind that the recommended pH for this preservative 4.0-8.0, so go accordingly.

  • Chemist77

    Member
    December 30, 2015 at 9:30 am in reply to: Natural gel

    @ashish Carbomer is alternative if she doesn’t want to stick to natural or if she has a change of mind and that’s why I mentioned that if it is a normal gel without the huge responsibility of ‘natural’. 

    Hope it clarifies.
  • Chemist77

    Member
    December 30, 2015 at 5:43 am in reply to: Natural gel

    Then just increase glycerin.

  • Chemist77

    Member
    December 30, 2015 at 5:03 am in reply to: Oxidation of mineral makeup
  • Chemist77

    Member
    December 30, 2015 at 4:58 am in reply to: Natural gel

    You need to increase the glycerin dosage and for sure cut down on your polymers say by 25% to start with. The ratio of plasticizer to the polymers is way too imbalanced here.

    Hopefully someone can chip in a better advice. 
    Have you tried Carbomers and PVP if its just a normal hair gel????
  • Chemist77

    Member
    December 23, 2015 at 4:24 am in reply to: Overmixed Shampoo - How to Save Batch

    @Perry No one does, as a supplier I have seen both big and small companies but never had such an exception to see. 

  • Chemist77

    Member
    December 22, 2015 at 10:49 am in reply to: 185 ester
  • Chemist77

    Member
    December 10, 2015 at 9:08 am in reply to: evaluation

    Depends on your targeted final pH. 

  • Chemist77

    Member
    December 10, 2015 at 8:34 am in reply to: evaluation

    OK is your formulation that much thick that you have to use 10% of xylene sulfonate, or you having difficulty to solubilize limonene. I see sodium hydroxide, whats the final pH of your formula and did you check other such formulations and their parameters to see if you are close to them or too wayward??? Sodium hydroxide here seems to be more of a pH adjuster as I don’t see anything that is being neutralized here. 

    Just compare your formula and its ingredients with those available online as starters. 
  • Chemist77

    Member
    December 10, 2015 at 8:03 am in reply to: evaluation

    The best evaluation would be by putting it into use and see how it cleans and de-greases. 

  • Chemist77

    Member
    December 10, 2015 at 4:10 am in reply to: cleaning products formulas

    This is where Rules for requesting formulating advice/help come into play, I hope we all can respect that. 

  • Chemist77

    Member
    December 7, 2015 at 6:20 am in reply to: cleaning products formulas

    Goodness you have lots and lots of formulas available online for dish wash liquid so why woul dyou get so confused. As for natural I never go that way which is basically just a mirage. 

    I use SLES, APG, CAPB, Amine Oxide, Polymer, Salt and fragrance in my dish wash liquid and it works just fine. You can use LABSA as well depending on your cost and if you know how to properly neutralize it to get the sodium salt of it. Or else use NANSA HS/80. 
  • Chemist77

    Member
    December 7, 2015 at 6:02 am in reply to: PVA for face mask - which one?

    You would need ethanol or else how do you plan to tackle the drying time of the mask. IIRC I used between 15-25% but check for irritation and other properties too and yes the moment you add ethanol the foam vanishes instantly. 

  • Chemist77

    Member
    December 6, 2015 at 4:41 am in reply to: PVA for face mask - which one?

    Dissolution of the PVA in water is an uphill task and requires a lot of patience, I had to heat it for dissolution and post that the foaming is enormous. The moment you add ethanol, it will become foam free. So first develop the base and check for drying time and other relevant properties, later you can add kaolin and whatever other clays you want to.

  • Chemist77

    Member
    December 1, 2015 at 3:37 am in reply to: PVA for face mask - which one?

    Check Sekisui as well, they have Ultalux PVAs and IIRC I had used Ultalux FF around 10% which was a bit on a higher side. The dissolution is a pain in the neck but it turned out to be a great experiment. 

  • Chemist77

    Member
    November 30, 2015 at 5:39 pm in reply to: cleaning products formulas

    check info from Huntsman, Akzo, Air Products, plenty to grab for a headstart.

  • Chemist77

    Member
    November 27, 2015 at 4:23 am in reply to: Mixing tanks

    @Bobzchemist Have you ever thought of compiling all these words, to laymen and experts alike they are really priceless. I mean I remember once recommending a book compiled and co-authored by @Perry and the guy was really happy to own it. And I have seen a huge number of people using it quite often. 

    Just a thought!!!!!!

    :)

  • Chemist77

    Member
    November 26, 2015 at 9:00 am in reply to: Basic Salicylic Acid Peel/Toner Recipe Question, Please . . .

    And a surfactant like sodium cocoamphoacetate would help too along with propylene glycol.

  • Chemist77

    Member
    November 26, 2015 at 8:58 am in reply to: Roll on with Aluminium chlorhydrate

    What other components are you going to incorporate is worth mentioning, otherwise its just unanswerable.

  • Chemist77

    Member
    November 25, 2015 at 11:34 am in reply to: Degreaser
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