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Author: Subject: Looking to buy 500g of mercury in Melb
JJWW
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Looking to buy 500g of mercury in Melb

Hi people , I'm looking to buy about 500g of mercury . I need to to make some large mercury switchs for a large conveyor system .if anyone has any Leeds I would appreciate it very much .
j_sum1
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Mood: inert even with vigorous stirring.

haines.com.au has 500g for $123 + delivery. You will need to create an account to see prices. For something like Hg however, I would give them a phone call first. http://www.austscientific.com.au/product/chemicals-a-to-m/ stocks it but I don't know prices and again you would need to contact them. Actually, my first stop would be rungood labs http://www.rungoodlabs.com/ -- they will be sure to track some down for you, are likely to be a good price and you will get good service. Amos International Hazard Posts: 1117 Registered: 25-3-2014 Location: Yes Member Is Offline Mood: No I know diddi has more than a fair bit, not sure if he's interested in selling, though. Chemetix Hazard to Others Posts: 222 Registered: 23-9-2016 Location: Oztrayleeyah Member Is Offline Mood: Wavering between lucidity and madness I have quite a lot of mercury switches from industrial applications. I'm in melb. More than happy to help. unionised International Hazard Posts: 3264 Registered: 1-11-2003 Location: UK Member Is Offline Why not use a small mercury switch? adk Hazard to Self Posts: 96 Registered: 28-10-2014 Location: Sydney, Australia Member Is Offline I have a quantity of Mercury available and would be happy for you to take it off my hands. It is fresh, non contaminated and packed in polypropylene containers. send an e-mail with a formal order sales@argentscientific.com (located in Sydney and can ship Australia wide via TNT Road Express) JJWW Harmless Posts: 7 Registered: 9-11-2016 Member Is Offline Thanks every one for your help I think I might it sorted . A massive thanks to Andrew for argentscientific for his help CalAm Harmless Posts: 28 Registered: 7-7-2016 Location: Australia Member Is Offline Just for future reference's http://www.austscientific.com.au require a EUD and ask$307 + $30.70 GST so$337.70 for 500g LR grade mercury.

Bert

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It could be cheaper to just look at eBay for mercury contactors...

Last I looked in USA, at least, there were plenty available as used or new surplus, new old stock or as brand new (expensive!) devices.

Unless you want the design and fabrication of such a device as a learning experience, then go for it.

What kind of voltage and how much curent needs to be switched?

Boom.
The explosion removed the windows, the door and most of the chimney.
It was the sort of thing you expected in the Street of alchemists. The neighbors preferred explosions, which were at least identifiable and soon over. They were better than the smells, which crept up on you.
-Terry Pratchett, "Moving Pictures"

It is essential that persons having explosive
substances under their charge should never
lose sight of the conviction that, preventive
measures should always be prescribed
on the hypothesis of an explosion.

Marcellin Berthelot - 1892 Explosives and their power - Page 47
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 Quote: Originally posted by Bert It could be cheaper to just look at eBay for mercury contactors... Last I looked in USA, at least, there were plenty available as used or new surplus, new old stock or as brand new (expensive!) devices. Unless you want the design and fabrication of such a device as a learning experience, then go for it. What kind of voltage and how much curent needs to be switched?

Dangerous Goods shipping to Australia is extraordinarily expensive. Also, we have some pretty tight rules surrounding the use, importation and sale of Mercury.
Bert

Posts: 2015
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Mood: Negative, I am a meat Popsicle.

Oz has for a century + had mines, refineries/factories, railroads, more recently perhaps large modern farms, big buildings with large HVAC equipment- These industrial applications all have used heavy draw industrial electrical equipment of the type requireing contactors to allow a decent life span for switching equipment. You can't find any used Mercury contactors on the whole island? Or it is forbidden to re sell them?

How do the modern businesses buy such things? They are still in common use world wide. If Hg is not allowed in Oz, how did you replace such switches?

Boom.
The explosion removed the windows, the door and most of the chimney.
It was the sort of thing you expected in the Street of alchemists. The neighbors preferred explosions, which were at least identifiable and soon over. They were better than the smells, which crept up on you.
-Terry Pratchett, "Moving Pictures"

It is essential that persons having explosive
substances under their charge should never
lose sight of the conviction that, preventive
measures should always be prescribed
on the hypothesis of an explosion.

Marcellin Berthelot - 1892 Explosives and their power - Page 47
Chemetix
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Funny thing that- you can practically cover Mt Isa in as much lead and cadmium as you want, but import some mercury and you might as well be treated like you are trying to eradicate a people.

Anyway, I've got a hundred or more of these, why would you try to make your own? They are industrial switches, not sure what they came from.

j_sum1
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Mood: inert even with vigorous stirring.

http://www.dx.com/s/mercury+switch
If anyone is still interested. I think the larger ones are better value for mercury content. Also available on eBay but watch the prices. I have not had any shipping issues with these.

Granted it is not 500g and if you are after Hg it is pretty expensive. But the OP was about tilt switches and like Chemetix, I cannot see why you would go past these.
Hazard to Self

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 Quote: Originally posted by Bert Oz has for a century + had mines, refineries/factories, railroads, more recently perhaps large modern farms, big buildings with large HVAC equipment- These industrial applications all have used heavy draw industrial electrical equipment of the type requireing contactors to allow a decent life span for switching equipment. You can't find any used Mercury contactors on the whole island? Or it is forbidden to re sell them? How do the modern businesses buy such things? They are still in common use world wide. If Hg is not allowed in Oz, how did you replace such switches?

Simply? They don't. We don't manufacture anything here in Australia that uses Mercury as a general rule. All chlor-alkali plants in Australia have been based on membrane technology for a long time and Gold containing ore is processed via the NaCN method. Dentistry switched to polymers & composite fillings and (new) amalgam fillings are quite rare.

Ironically, most exposure to Mercury in Australia comes from burning coal. We still burn plenty of that stuff. We also use a lot (shit tonnes) of fluorescent bulbs (contain Mercury).

Panache
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 Quote: Originally posted by Bert Oz has for a century + had mines, refineries/factories, railroads, more recently perhaps large modern farms, big buildings with large HVAC equipment- These industrial applications all have used heavy draw industrial electrical equipment of the type requireing contactors to allow a decent life span for switching equipment. You can't find any used Mercury contactors on the whole island? Or it is forbidden to re sell them? How do the modern businesses buy such things? They are still in common use world wide. If Hg is not allowed in Oz, how did you replace such switches?

The simple answer is mercury is ubiquitous in Australia. The problem with finding mercury here is the people finding it, they're no good at it.
Admittedly I have a better than normal knack for understanding what's in things and have had a long term project running that requires much mercury (not much by mining standards though only about 15kg), so when it crosses my path...

Mercury contactors are still in high use here and although they are very reliable, meaning they don't get replaced much, the equipment that uses them does get replaced often as it is generally dirty dusty hot etc, no good for relability.
So don't look for the contactor look for the bit of kit, that is constantly being gumtreed with ads like 'free if you pickup'

So Swiss Miss, she spends her waking hours absolutely focused on being near me, until anything living (other than a human or a plant) enters the picture, at that point she becomes absolutely focused on killing that living thing be it a fly, a kangaroo, a cow, a mouse, it's so otherworldly, she has no sense of herself during these phases, destroying her physical body without pause, or even acknowledgement and she's so quiet about it, very disturbing initially, when you first fully understand this about her.
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Attn: JJWW

A

 Sciencemadness Discussion Board » Fundamentals » Reagents and Apparatus Acquisition » Looking to buy 500g of mercury in Melb Select A Forum Fundamentals   » Chemistry in General   » Organic Chemistry   » Reagents and Apparatus Acquisition   » Beginnings   » Miscellaneous   » The Wiki Special topics   » Technochemistry   » Energetic Materials   » Biochemistry   » Radiochemistry   » Computational Models and Techniques   » Prepublication   » References Non-chemistry   » Forum Matters   » Legal and Societal Issues   » Whimsy   » Detritus   » The Moderators' Lounge