WHO Handrub Formulation

zman09 on 10/03/2020 - 18:49

Hand sanitizer is sold out everywhere.

According to WHO it is pretty easy to make.

https://www.who.int/gpsc/5may/Guide_to_Local_Production.pdf

Isopropyl alcohol 99.8%
Hydrogen peroxide 3%
Glycerol 98%
De-stilled Water

For the alcohol there are places to get that. I am wondering about the Hydrogen peroxide 3% & Glycerol 98%.

It looks like woolies and coles used to sell both.

https://www.woolworths.com.au/shop/productdetails/29411/sano…
https://www.woolworths.com.au/shop/productdetails/179964/san…

Now i have read conflicting reports that glycerine is the same as glycerol. Can people confirm? Also im guessing they are only sold in a pure state?

Health & Beauty Hand Sanitiser

Comments

  • scrimshaw on 10/03/2020 - 18:57
    +2

    Glycerol and glycerine are the same thing. In fact, if you type in glycerine in Wikipedia, you are redirected to Glycerol

    Wikipedia

    Other names
    Glycerin
    Glycerine
    Propanetriol
    1,2,3-Trihydroxypropane
    1,2,3-Propanetriol

    It's non toxic, the use of glycerin for hand sanitiser is to just give it a lotion-like consistency so that the alcohol has time to do it's work before evaporating. it's often used as cooking ingredient for cakes and desserts. You can even find it in the baking section

    • zman09 on 10/03/2020 - 19:02

      I read that too but i saw other sites like http://www.differencebetween.net/object/comparisons-of-food-… which seemed to muddy the situation.

      There seems to be lots of listings on ebay for Glycerine. I take they are pure Glycerine unless stated otherwise?

      • scrimshaw on 10/03/2020 - 19:04
        +1

        You could always call the manufacturer of the product you are buying to clarify and look for a Material Safety Data Sheet.

        There may be differences as to how the end product is produced. a Food-grade one will be cleaner and be safer to consume than one that is made for other industrial purposes.

  • brendanm on 10/03/2020 - 19:00
    +3

    Damn, thought this post was about something else.

    • bobbified on 10/03/2020 - 19:25
      +1

      What you're after is more commonly known as a "Happy Ending"! :p

    • zman09 on 10/03/2020 - 19:13

      I think most people on this site know basic maths so can figure out the mixture ratios.

    • elusive on 10/03/2020 - 19:21
      +1

      Just looked at the first link and it even says the WHO recipe is fine. Except it somehow suggests sterile water is hard to get? The WHO recipe literally says boiled tap water is fine.

      The other thing is the typical home environment doesn't have any way to test the alcohol content after mixing, so you can't really verify concentration.

      • zman09 on 10/03/2020 - 20:47

        If you do it in small batches i think should be fine.

        10L batch broken into say 100x 100ml if not mixed well could become an issue. But if it was mixed well, especially in small batches, dont think it would be a problem.

  • RndmDr on 10/03/2020 - 19:06

    glycerol = glycerine
    ethanol ~= methylated spirits for our purposes here

    either isopropyl alcohol or ethanol diluted to 70% is sufficient, and has all of the required antiviral action

    the peroxide is mainly to kill off the few bugs that might otherwise resist the alcohol in the bottle; it is not a critical ingredient.

    the glycerine is intended to act as a moisturiser, to stop the skin getting red/cracked after days of repeated use; it does leave the hands a bit sticky.

    • zman09 on 10/03/2020 - 19:10
      +1

      Thanks. I was going to just go with the iso alcohol + distilled water but thought i would follow the WHO formulation. The normal hand sanitizers that are out there, do they use glycerine too? How do they get around the stickiness situation?

      • scrimshaw on 10/03/2020 - 19:17
        +2

        Dettol Ingredients:

        Alcohol Denat., Water, PEG/PPG-17/6 Copolymer, Propylene Glycol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tetrahydroxypropyl Ethylenediamine, Aloe Barbadensis Gel, Fragrance, Limonene, CI19140, CI42090.

        The way I see it — the non-sticky formulas you buy actually dry out faster. Alcohol needs a bit of time to do it's work, quick-dry formulas may not necessarily be better. If you omit glycerine from the formula you will just end up with what is essentially just a liquid handwash. isopropanol is also an astringent — it will dry your skin. Glycerol will help to moisturize it.

      • elusive on 10/03/2020 - 19:39
        +1

        The Aqium ones I have are pretty much ethanol + water + glycerin:

        Alcohol, aqua (water), glycerin, panthenol (pro-Vitamin B5), acrylates /C10-30 alkyl acrylate crosspolymer, aminomethyl propanol, parfum, limonene, butylphenylmethypropional.

        • c64 on 11/03/2020 - 13:54

          do they state the alcohol content?

          • elusive on 11/03/2020 - 14:16

            @c64: 70% ethanol on the front, I think. I'll post another comment if it's wrong when I get home.

            But you're likely better off using the mix ratios in the WHO recipe if you intend to self-mix.

      • RndmDr on 10/03/2020 - 22:05

        Glycerine is a fairly common ingredient; as is propylene glycol which also tends to dry a bit sticky, though less so.

        Most of the commercial products contain small quantities of some kind of gelling polymer - so when you squirt it out it will hold its shape and stick as you rub your hands, but dries without stickiness.

        (until the next time you wet your hands, when it makes a film of gel again)

        If you have a half-used bottle of aquium and top it up with 70% alcohol it will still gel somewhat (which is legit for effectiveness, and doesn't drip on the floor as much as straight 70% alcohol).

  • c64 on 10/03/2020 - 19:25

    do non-alcohol wipes kill the coronavirus? eg https://shop.coles.com.au/a/national/product/coles--brand-wi… active ingredient is benzalkonium chloride 0.4%

    • triviums on 10/03/2020 - 19:43

      It looks like it might based on a old study: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1058082/

      • elusive on 10/03/2020 - 19:52
        +1

        after 10 min of exposure at 30 C or at room temperature

        That's pretty slow. Alcohol sanitisers were ~30s on SARS-CoV: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3509683/

        Most of the tested alcoholic-based solutions (isopropanol or ethanol) has been shown to allow a reduction > 4 log10 in viral titers over 30 sec, whatever the added organic load. They also investigated the activity of three surface and instrument disinfectants (one based on benzalkonium chloride and laurylamine; one based on benzalkonium chloride, glutaraldehyde and didecyldimonium chloride; and one based on magnesium monoperphthalate). Contact times were then, still in accordance to the European Standard, 30 and 60 min. SARS-CoV was inactivated by all the disinfectants to below the limit of detection (the smaller reduction factor was 3.25 log10), regardless of the type of organic load

        The reference in that study is https://www.ncbi.nlm.nih.gov/pubmed/15923059/, which tested benzalkonium chloride-containing surface disinfectants at … 30 and 60 minutes.

        I would not trust benzalkonium chloride 0.4% as a hand wipe. Maybe as a surface wipe but that's a really long exposure time.

  • subywagon on 10/03/2020 - 20:37
    +2

    I just pour a bit of petrol or metho over my hands. Pretty easy to carry a jerry can around as they have handles.

  • [Deactivated] on 11/03/2020 - 03:12
    +1

    If I cared that much I would just wear gloves in public.

    • c64 on 11/03/2020 - 09:10

      seems like the simplest solution to me

  • one man clan on 11/03/2020 - 09:03
    +2

    Washing your hands is also effective

  • Diji1 on 11/03/2020 - 11:35
    -1

    Slaves are making this in the US:

    https://www.youtube.com/watch?v=G7DR94wHD0U

    Australia's prison system has been privatised and has far less transparency.

    Despite the moronic believers in privatisation theory claiming that it leads to more transparency.

    The theory predicts the opposite of reality as it usually does.

  • jlim87 on 11/03/2020 - 15:11
    Merged from Making My Own Hand Sanitizer with This?

    So my partner bought 2 bottles of this: https://www.jaycar.com.au/isopropyl-alcohol-99-8-spray-250ml…

    I just had a look at it and it says it's 99.8% pure IPA isopropyl alcohol while I believe alcohol based sanitisers are 70%. On the label it also says to not get on skin or clothing and to rinse with water immediately if gotten on skin.

    It's obviously a very high concentration, just wondering if this is the same ingredient used in alcohol based hand sanitisers and if I could actually use it as an ingredient to make my own?

    Thanks

  • Blue Suby on 11/03/2020 - 16:30

    If they're not out-Woolies sell glycerol, peroxide and Isocol (brand name for the alcohol) and I have mixed a batch to wipe down surfaces when I'm O/S. More for use to wipe down tray tables and armrests on plane.

    • c64 on 11/03/2020 - 19:03

      isocol is only 64% alcohol according to the label

      https://shop.coles.com.au/a//product/isocol-antiseptic-rubbi…
      Contains:
      640mL/L Isopropyl Alcohol.

      ebay sellers are price gouging for isopropyl. 5L cost $29 end of feb, then $38, then $40 and now $46.

      • triviums on 12/03/2020 - 00:58

        That's fine.

        For it to kill viruses and bacteria Isopropyl Alcohol needs to be diluted to between 60-70%

      • Daniel Plainview on 13/03/2020 - 09:08

        Just use plain old methylated spirits - isopropyl alcohol has no benefits over it for this purpose, except thats it's a tiny bit easier on skin but all the big makers of sanitiser use ethanol (metho).

        The rise in price of iso alco vs face msaks is very mild - so I dunno about the gouging, I think they're just not having to mark down to sell - $9/L is still far cheaper than in retail stores.

  • Duckie2hh on 12/03/2020 - 08:35

    People generally don't like the smell of Isopropyl Alcohol. However I do concede that it is much easier to obtain than pure ethanol. GLycerine =Glycerol. .

    Glycerine is not a mandatory ingredient for the antimicrobial effect. It is a moisturising agent so that your hands do not shrivel up from over sanitizing.

    • TEER3X on 13/03/2020 - 09:08
      +1

      Don't let the days go by

  • Daniel Plainview on 13/03/2020 - 09:01

    I'd use methylated spirits as your base - its easy to find, cheap and you'll find the commercial ones tend to use ethanol as their base - it's also 95%+ ethanol - so makes the maths easier.

    Use 70% of that - to ideally distilled water but in a pinch bottled water is fine too. The water is very important as without it the metho actually doesn't work as well.

    IMHO I'd not use the peroxide, even the WHO says it's there for anti-bacterial work - which isn't the main concern of folks and ethanol is anti-bacterial as well.

    If you can find and add a little glycerol/glycerine - thats great. If not as others have said it's for moisturising only - so you can just carry a hand moisturiser with you and use every now and then as you feel needed.

    You can also add a few drops of essential oils or whatever for scent - but thats optional and of no real benefit. I've found making a 1L batch of this and then decanting into individual squeeze or spray bottles available in the travel section of $2/bargain shops works well. 3-4 pumps and then rub over your hands when you're out and about.

    That all said, if you've access to running water and plain soap, you're best of using that instead - overuse of hand sanitiser will provide little benefit and can cause issues to hand skin etc.

    • Duckie2hh on 13/03/2020 - 09:27

      I Agree with this. My only concern is methylated spirits are denatured and generally poisonous when consumed (people rubbing this on their hands and then eating KFC….lick).

      All I can say is that 85% w/w ethanol in water, can kill most viruses including SARS & MERS (reference available to those who are interested).

      • elusive on 16/03/2020 - 18:10

        If you look at the SDS it's usually a bitterant added now, not methanol.

        But check the SDS for the one you buy.

  • Frantic on 14/03/2020 - 01:05

    late to the party.. been using precious 100% iso like its water.. down to my last 5l jug.. please pm or post here where I can get this at reasonable cost.. 25$-35$ would be great. Found somewhere selling cheap and apparently instock but… Figured the general population stocking up on leggos tomato paste and toilet rolls would overlook this.. also retailers hoarding this now holy water product. Thx

  • WoodYouLikeSomeCash on 14/03/2020 - 11:15

    Where to find an Alcometer?

  • zman09 on 14/03/2020 - 14:06

    Saw the video of the WHO mixture. Anyone know how to get it to a more gel like consistency?

    • Duckie2hh on 17/03/2020 - 00:25

      I can tell you. Pm me for details. The thickeners are not normally accessible to the public.

  • 1bug on 18/03/2020 - 18:25
    +1

    My local IGA has Distilled Water (2L) for $1.70. Try your local IGA.

  • muchobizarro on 05/04/2020 - 00:43

    I agree with Nikko - https://www.youtube.com/watch?v=SQDaoJDPywY - Metho is 95-96% Ethanol. 70-75% appears to be the most effective concentration. Super high levels e.g full strength doesn't kill virus'.

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