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The Natural Philosopher[_2_] The Natural Philosopher[_2_] is offline
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Default Extemporaneous hand sanitizer.

On 06/03/2020 16:13, Jethro_uk wrote:
On Fri, 06 Mar 2020 15:43:03 +0000, Roger Hayter wrote:

Andrew wrote:

On 06/03/2020 11:30, wrote:
On Friday, 6 March 2020 07:34:51 UTC, RJH wrote:
On 6 Mar 2020 at 01:26:42 GMT, "tabbypurr"
wrote:
On Thursday, 5 March 2020 23:45:19 UTC, Michael Chare wrote:
On 05/03/2020 19:25, Andy Burns wrote:
Roger Hayter wrote:

I am told of a recommendation for 3:2 but I really have no idea
what the evidence is. 60-70% alcohol seems common for hand
gels.

The WHO publishes a hand-gel "recipe"

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

Not to difficult to make.

I don't know what the ingredients cost but I think you could make
quite a bit of money making your own and flogging it on ebay.

It's already on ebay for very low price

They look highly inflated to me. Small Aldi brand bottles up from
45p to c.£3. And some stuff I bought ('Cuticura') a while back for
not much more than £1, £10-£20. And people are paying these prices:

https://www.ebay.co.uk/itm/223936491662

order hand sanitizer by price, there's plenty of cheap available.
That some is also going for silly prices doesn't mean we can make &
sell it at great margin. I did look.


NT


Does common old methylated spirits work ?.


It is moderately poisonous, and therefore best not used as a skin
preparation, especially not frequently or on children. Also it will dye
your hands purple.


Well, if you are using bought meths. Although why anyone non-dodgy would
want to make methanol I don't know. Unless they are a very niche hobbiest.

The antidote for methanol poisoning is ethanol. Which always amused me
slightly, since if you had ethanol you wouldn't be drinking methanol

Aren't some US cars run on (m)ethanol ? Very dangerous as the flame can't
be seen ...

Only race cars.
Like nitromethane or nitrous oxide it carries its own oxygen so its a
good way to throw power into an engine that is limited by its breathing.

Once you start supercharging though its not really much of a gain and
its bloody dangerous for the reasons you stated

But it still gives a bit of a boost tho and makes arriving at a correct
mixture richness easier so its still in use in e.g. top fuel dragsters

Just not pure alcohol - generally blended with nitromethane and gasoline

US racing mandates it BECAUSE it produces no smoke.

https://en.wikipedia.org/wiki/Methanol_fuel#Racing

and its easier to put out once you know its alight.

The problem is knowing


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