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Registered Member #162
Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3141
I suspect that some detergents could cause problems with mercury due to their sulfur content, I'm unsure what is in ionic and non-ionic surfactants, detergents, aromas etc. but sulfur comes to mind.
My barometer project is at a complete standstill because;
. my gas torch is too pathetic to melt 3.5 mm wall thickness borosilicate tube, . even my nephew's MAPP plumbers torch was not hot enough (I want a "J" tube sealed at the top end using my 1.5 m long, 16 mm o.d. straight tube(s)
it would be easy enough for me to lash something together, but if I can not use it reliably as a primary reference in a presentable shed-proof enclosure, I see no point ... waiting for inspiration ... (mercury and tubes safely stored)
. I bought two types of domestic aneroid barometer very cheaply via eBay which are more than good enough for the ambient pressure measurements that I want, for hobby chemistry mainly. I may temporarily lash something together for low pressure measurements though. At some point I may try distilling the mercury (under reduced pressure) to 'purify' it.
klugesmith, the site that you linked to has a photograph of their 'Analytical Laboratory' ... makes my shed look over equipped !
Registered Member #2099
Joined: Wed Apr 29 2009, 12:22AM
Location: Los Altos, California
Posts: 1716
Well I've been watching lots (NPI) of mercury metal moving through ebay, but it's too soon to post a summary. Bought a brand new mercury tilt switch, on blister card for $1.89, among other switches hanging on the hooks at a Fry's store. Doodled mechanical detail ideas for 1-ohm resistance test cell and small (20-ml capacity) metal retort/condenser for vacuum distilling.
Breaking news is a real mercury oxifier up on ebay. Looks like the large model, made to process more than one 20-pound batch per day. Priced higher than my interest in owning one, but the pictures have taught me a lot. See US ebay item 141830199657.
One old reference is the text and image in rightmost column here: I should mention that Bethlehem Apparatus Company is still big in the American mercury business, now including toxic material recovery and remediation.
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
I find people are only too happy to give me stuff containing mercury for free as they don't want it. I've recently been given two mercury rectifiers, one I've already identified, I have another
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Mercury metal price experiences?
