On Tue, Nov 20, 2018 at 3:44 AM yorkshireman@y... <
yorkshireman@y...> wrote:

>
>
> At one end of a scale is a few drops of oil on a cloth in an ambient
> temperature of notalot.  I don’t expect any issues to arise.
>
> At the other end is a gang of finishers with a quantity of well soaked
> cloth, folded into wads to incorporate air/oxygen anf placed in to a nice
> warm dry place without draughts to help the heat build up.
>
>
> Somewhere along the line is the critical mass and point of combustion.  Do
> we have any chemists who can put some numbers to all of this?   What weight
> of oil at what ambient temperature is needed before critical mass is
> reached?


All

A quick YouTube search of

Spontaneous combustion -human

Will bring this up, probably first. Unfortunately, no time scale on this
one.

https://youtu.be/Kij2C0fdOVY


As well as many others. Lots of people have done home brewed science
experiments to show how little effort it takes to get spontaneous
combustion.

Don’t worry about ambient temp, I swore I saw one done in the snow a decade
ago. It was on a driveway, cleared the snow w the exothermic, then warmed
up enough to ignite. Took a while.

Other videos do time lapse, to let you get to sleep before it ignites.

Kirk in HMB, who has seen enough videos, and knows of a house fire south of
town, to be worried.

>
> --
Sent from my iPad, apologies for the Auto Correct errors. Kirk