"Ian Stirling" wrote in message
...
G&M wrote:

"Smudger" smudger@here wrote in message
.. .

"Sunbeam" wrote in message
...
I want to obtain about 40ml mercury to refill an open cistern
barometer.
Any ideas for a supplier please?

or if you know someone who works in a secondary school, they
might be able to help.

I think it's now a restricted substance. A whole generation won't know
the
fun of seeing how many times you can divide a globule of the stuff with
your
fingernail :-)

You can use gallium/indium alloy as a substitute.
Comparatively non-toxic, and can be rolled around in your hands.


Sodium/potassium alloy is much cheaper, but has the disadvantage that
it'll burst into flames when you do that.

That was a restricted (to teachers only) substance when I was young !!!!!

G&M wrote:

"Ian Stirling" wrote in message
...
G&M wrote:

"Smudger" smudger@here wrote in message
.. .

"Sunbeam" wrote in message
...
I want to obtain about 40ml mercury to refill an open cistern
barometer.
Any ideas for a supplier please?

or if you know someone who works in a secondary school, they
might be able to help.

I think it's now a restricted substance. A whole generation won't know
the
fun of seeing how many times you can divide a globule of the stuff with
your
fingernail :-)

You can use gallium/indium alloy as a substitute.
Comparatively non-toxic, and can be rolled around in your hands.


Sodium/potassium alloy is much cheaper, but has the disadvantage that
it'll burst into flames when you do that.

That was a restricted (to teachers only) substance when I was young !!!!!

Sodium/potassium, or indium?
I've got both indium, gallium from ebay.

"Ian Stirling" wrote in message
...
G&M wrote:

"Ian Stirling" wrote in message
...
G&M wrote:

"Smudger" smudger@here wrote in message
.. .

"Sunbeam" wrote in message
...
I want to obtain about 40ml mercury to refill an open cistern
barometer.
Any ideas for a supplier please?

or if you know someone who works in a secondary school, they
might be able to help.

I think it's now a restricted substance. A whole generation won't
know
the
fun of seeing how many times you can divide a globule of the stuff
with
your
fingernail :-)

You can use gallium/indium alloy as a substitute.
Comparatively non-toxic, and can be rolled around in your hands.


Sodium/potassium alloy is much cheaper, but has the disadvantage that
it'll burst into flames when you do that.

That was a restricted (to teachers only) substance when I was young
!!!!!

Sodium/potassium, or indium?
I've got both indium, gallium from ebay.

Sodium/potassium.