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Author: Subject: MgSO4 --> H2SO4
Organikum
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[*] posted on 13-4-2004 at 04:34


Ok, then try some stainless steel or nickel if you cant get hold of lead.

Lead:
- (shotgun) ammunition
- fishing weights
......




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[*] posted on 13-4-2004 at 05:33


As I already mentioned, Lead plates can be found in car battries. I'll get one used. One battry will provide you with more than enough lead plates if you can obtain one.



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[*] posted on 13-4-2004 at 05:42


Its not easy for a 17 yr old girl living in a country where practically everything is regulated to get their hands on a car battery :( I do have a sealed lead acid battery at home, but I dont wanna dismember it :(



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Organikum
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[*] posted on 13-4-2004 at 06:51


We work hard on finding workarounds regarding you being underaged and living in a restrictive country, but there is no hope I fear for finding a workaround for you being a girl... ;)



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[*] posted on 13-4-2004 at 06:57
lead


Go to a scrapyard and buy used x-ray shielding. It's almost for free.

Or buy air-gun pellets. They're lead (although probably alloyed with tin and / or antimony).

Hell, I've got tons of pure lead here. If all else fails I could send you some. I'll even cast two staffs for you if you like.




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[*] posted on 13-4-2004 at 07:09


you can also get lead from builders supplies, in this country they use it a lot for roofs, water drainages, etc etc.
I can't believe you'd have a problem getting some lead, with all the ideas above!!




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[*] posted on 13-4-2004 at 07:43


This sounds crazy (and it IS!!), but air rifles are illegal here, building suppliers here dont sell to individuals (or single pieces/small quantities) and the scrap yard is off shore on some remote island :o

Maybe I will get lucky and find another lead acid battery in the school dumpster or last resort, I *could* dismember mine and risk being hosed with acid, but I dont wanna part with it nor do I want to lose any skin! :(

Edit: Axehandle, I really appreciate you sending me some, but the shipping would be almost insane :(

[Edited on 13-4-2004 by Saerynide]




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[*] posted on 13-4-2004 at 08:31


Last time I took apart a SLAB (Sealed Lead Acid Battery) It didn't have any acid in it to splash about.

Just damn(ish) cloth like material inbetween little strips of lead.




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Organikum
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[*] posted on 13-4-2004 at 09:13


And what about fishing weights?
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[*] posted on 13-4-2004 at 10:01


The shipping to Singapore from Sweden of an envelope weighing a maximum of 100g costs only about 2.5 Euro.

For one weighing a maximum of 250g, it's about 5 Euro.

Time to delivery: 3..4 days.

Make up your desired dimensions of the electrodes, and I'll cast them. With an embedded copper wire partly coated with PVC, if you'd like.




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[*] posted on 13-4-2004 at 10:11


!!!
Quote:

With an embedded copper wire partly coated with PVC

me too! me too!
:o:o




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[*] posted on 13-4-2004 at 10:14
Organikum.....


..... I strongly suspect that lead is much more available to you than to Saerynide...... cast your own electrodes.... :P



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[*] posted on 13-4-2004 at 10:47


Bäh!

I would have offered you some feathers from vulture´s wings, Ignorantly_Intelligent´s soul AND one testicle of, eh how was the name of this mad swede here again.....?

But ok.
As you like it.
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[*] posted on 13-4-2004 at 14:10


Quote:
Originally posted by Saerynide
Its not easy for a 17 yr old girl living in a country where practically everything is regulated to get their hands on a car battery :(


You're a girl!?!

You can't get a car battery....?

You can't get roof/chimney flashing?

You're a girl :o




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[*] posted on 14-4-2004 at 01:25


Garrh...Back from the stupid camping trip, reading the long replies by everyone.

So, Organikum suggested lead and gold electrodes. I thought too that gold electrodes are not bad. (I could use some gold necklace as electrodes). But only gold jewellery are available. But i will look around for thin gold wires.

Lead, hmmm, it is tricky... Lead is reaaallly uncommon here, never seen lead in my 15 years of lives.I could appreciate that if some short lead bars could be sent here.

And, Organikum what do you mean that aluminium sulphate does not hydrolyse too well. All you need to do is to give the solution gentle agitation to precipitate. Ok, i agree that the formation of a base and acid in the same container does not bode well, i am still thinking this through...:(




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[*] posted on 14-4-2004 at 01:33


I NEVER suggested GOLD electrodes, damn.

And the problem with the aluminium sulfate is as I wrote it: EQUILIBRIUM. You cannot hydrolyse the sulfate to get any serious amount of H2SO4. This is not practical.




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[*] posted on 14-4-2004 at 01:39


:(Sob, i was just trying to think of other possible ways to make H2SO4 other than graphite electrodes...

Edit: About the gold electrodes, sorry, that was axehandle's suggestion

[Edited on 14-4-2004 by darkflame89]




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[*] posted on 14-4-2004 at 01:58


Quote:
Originally posted by Organikum
Bäh!

I would have offered you some feathers from vulture´s wings, Ignorantly_Intelligent´s soul AND one testicle of, eh how was the name of this mad swede here again.....?


ROFL. Feathers and souls are nice... but.. a .... urm... testicle?? :P


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You're a girl!?!

You can't get a car battery....?

You can't get roof/chimney flashing?

You're a girl :o


Lol. Yeah, I am :D I always found people's reaction after realizing Im not a guy very amusing :D




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[*] posted on 14-4-2004 at 06:22
Electrodes, schmelectrodes....


Look what little me bought today....... the plates are 1mm Ti plate, the wire 0.8mm x 300mm pure Pt, and the mesh is a <b>Platinum Clad Titanium Anode!!!!!!</b>

I accidentally found it while waiting at the counter, flipping through their catalogue.... and it only cost about 50 Euro!!!!!!

And..... they have Graphite Rods too!!!

I think I'm getting a spontaneous orgasm!!!





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[*] posted on 14-4-2004 at 07:26


Wow. The platinum/titanium mesh anode looks sweet :D



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sad.gif posted on 14-4-2004 at 13:05
Yes,


but I somewhat regret buying it.... I don't know how thick the Pt layer is. I'll know later though, when my H2SO4 plant is finished and I start my next project: A KCl --> KClO4 cell.

Does anyone know of an electrolytic way of increasing the Pt layer thickness, perhaps using HCl and hexachloroplatinic acid? I'd like to add a gram or one and a half...




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[*] posted on 14-4-2004 at 19:40


Pure Pt and Pt clad Ti ????? I'd KILL for that! Lucky you! :mad: Any chance of auctioning it off? Just tell me if you ever get tired of them someday- I'll buy them from you!

The Pt coating does not need to be too thick. It should just coat the entire metal surface completely and uniformly to prevent erosion.

I'd thought of electroplating using chloroplatinic acid, too. However, it won't work unless the compound exists as platinum ions in solution, which I'm not sure they do. Anyone care to enlighten us? For some info on metal plating: http://www.groupsrv.com/science/viewtopic.php?t=10129

[Edited on 15-4-2004 by t_Pyro]
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[*] posted on 14-4-2004 at 19:47


Wow Axehandle, those are some incredibly beautiful electrodes you have there.:o Any chance of letting us in on which catalog these came from?
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[*] posted on 15-4-2004 at 04:16
Hehe


Well, I got them from a local noble metals retailer, at exhorbitant prices ('cept the Ti, which was cheap). The don't do mail order outside Sweden.

But a little bee whispered in my ear that Pt clad Ti mesh can be found cheaply at ebay.de .......

Edit: However, the Pt wire might be a little too long. I might want to sell off some in the near future.


[Edited on 2004-4-15 by axehandle]




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[*] posted on 15-4-2004 at 07:16
Saerynide, darkflame89,


here are the pure Pb electrodes. They are 8mm in diameter and approx. 65mm long. If you want to increase the surface area, just smash them lightly with a hammer --- since they are pure Pb, they're <b>very</b> soft.

Unfortunately, I had no PVC hose with the right diameter to seal them, but that's not impossible to buy at your location, I hope?





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