A dangerous when wet metal.....Reminds me of a fifth grade science class
demonstration. Mr. Rudley takes out a can of sodium, a blob sitting
submerged in kerosene. He digs out a small sample and places it on a
test dish. Adds a drop of water and it explodes like a firecracker (as
I recall, 44 years ago.)
___________________________________
John Hermanson
Camtech Photo Services, Inc.
21 South Lane, Huntington NY 11743
631-424-2121 | Olympus OM Service since 1977
http://www.zuiko.com | omtech1 AT verizon.net
Piers Hemy wrote:
> For a couple of hair-raising reports of the long-established dangers
> of lithium cells not installed in equipment, try a google search on
> "ntsb lithium" - the first two results are the ones to look at,
> namely www.ntsb.gov/events/2006/PhiladelphiaPA/Exhibits/350561.pdf
> and www.ntsb.gov/publictn/2005/HZB0501.pdf. The following
> clarification is taken from one of the footnotes to the second
> result, the NTSB report into a cargo fire on a Fedex MD-11 at Memphis
> in 2004.
>
> Lithium is a combustible alkali metal that self-ignites in air at
> 352° Fahrenheit (F). When exposed to water, lithium reacts
> exothermically and releases hydrogen, creating a dangerous fire risk.
> Fires involving lithium are extremely difficult to extinguish.
> Extinguishers using water, gas, or certain dry chemicals cannot
> control this type of fire. The DOT classifies lithium metal as a
> division 4.3 material (dangerous when wet). Lithium metal may not be
> shipped on passenger aircraft but may be shipped on cargo aircraft,
> provided each package weighs no more than 15 kilograms.
>
> -- Piers
>
>
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