thickening of hand sanitizer with carbopol

i am preparing hand sanitizer with isopropyl alcohol,H2O2,Glycerine and distil water,i want to make it gel like with carbopol,what should i have to do to make this happen?
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  • BelassiBelassi Member
    Follow the WHO instructions, but frankly, I am horrified at the idea of totally unqualified people with no knowledge attempting this.
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  • PerryPerry Administrator, Professional Chemist
    @Belassi - I agree.

    But if someone is going to attempt to make hand sanitizer, please follow the guidelines by the WHO.
    https://www.who.int/gpsc/5may/Guide_to_Local_Production.pdf?ua=1

    If you are going to use IPA, you'll need to start with 99% active material. And don't dilute it under 70%

  • Bill_TogeBill_Toge Member, Professional Chemist
    if you've got hydrogen peroxide in there, forget about trying to make a Carbopol-style gel - that stuff attacks and degrades even the hardiest of polymers
    UK based formulation chemist. Strongest subjects: hair styling, hair bleaches, hair dyes (oxidative and non-oxidative) I know some stuff about: EU regulations, emulsions (O/W and W/O), toothpaste, mouthwash, shampoos, other toiletries
  • Thanks Perry.
    I am making sanitizer with same WHO guide lines,but my senior asked me to make it gel like,i am trying with this formulation
    IPA 99%---75.15%
    h2o2 3%-----4.17%
    Glycerol 98%----1.45%
    H2O-------19.23%
    CARBOPOL 0.5GM
    but is not yet succeeded in formulation.
    thanks for helping
  • no carbopol holds 75%IPA, i Think
  • then what should i have do do?if possible in other scenario.kindly guide me.
  • crillzcrillz Member
    Need to neutralize the carbomer?
  • with which chemical regent neutralize carbopol?
  • Chemist77Chemist77 Member, PCF student
    Junaid follow what Bill has recommended, you cannot make peroxide containing carbomer gel. Remove it and try Ultrez grades which are generally used for sanitizers. Though no restriction if you can manage with 940 grade and for neutralisation TEA 99%, AMP-95, etc. can be used. Search this forum and you will find many discussions and finished formulations. 
  • Thanks Chemist77.I will try without peroxide.
  • AhmadAhmad Member
    I also want to know is it possible to get clear gel at 80% ethanol using carbopol 940 or ultrez 21...
    Will appreciate the answers, to thanx
  • AhmadAhmad Member
    I am having tough time during making ng 80% ethanol gel as it consumes more carbopol and due to high prices it's cost goes higher...
    A customer want it with WHO recommendations but with gel not liquid I mad it once but its tolerance towards TEA is very low at higher concentration.
    I have a meeting today in evening for this quality requirements. What should be the best percentage of Ethanol that can work in these conditions?

  • Ahmad said:
    I am having tough time during making ng 80% ethanol gel as it consumes more carbopol and due to high prices it's cost goes higher...
    A customer want it with WHO recommendations but with gel not liquid I mad it once but its tolerance towards TEA is very low at higher concentration.
    I have a meeting today in evening for this quality requirements. What should be the best percentage of Ethanol that can work in these conditions?

    You should be able to use 80% ethanol with carbomer. Neutralize with AMP Ultra instead of TEA.

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