Sciencemadness Discussion Board
Not logged in [Login - Register]
Go To Bottom

Printable Version  
Author: Subject: Metal Powders
=SkyNET=
Hazard to Self
**




Posts: 52
Registered: 16-4-2006
Member Is Offline

Mood: Randy baby :P

[*] posted on 6-6-2006 at 20:51
Metal Powders


Could someone tell me where i could get arsenic, silicon or vanadium?
View user's profile View All Posts By User
Elawr
Hazard to Others
***




Posts: 174
Registered: 4-6-2006
Location: Alabama
Member Is Offline

Mood: vitriolic

[*] posted on 6-6-2006 at 21:27
Metal powders


I have seen silicon in the form of wafers sold as surplus from the microchip industry. If I remember correctly, several on-line outfits specializing in surplus electronics components offered it at a price that seemed not unreasonable. It would seem that Si destined for chip manufacture would be of high purity. As far as As and V are concerned, I would try eBay first.
View user's profile View All Posts By User
DeAdFX
National Hazard
****




Posts: 339
Registered: 1-7-2005
Location: Brothel
Member Is Offline

Mood: @%&$ing hardcore baby

[*] posted on 6-6-2006 at 22:16


Arensic I believe is used in the electornics industry too unless they are using something that is more "enviroment friendly"

[Edited on 8-6-2006 by DeAdFX]
View user's profile View All Posts By User
ethan_c
Hazard to Others
***




Posts: 104
Registered: 5-6-2006
Member Is Offline

Mood: No Mood

[*] posted on 7-6-2006 at 09:11


Powder form, you're going to have issues with all of those elements.

Skylighter.com sells powdered silicon, at a very reasonable price if I remember correctly, but they also sell it as a hazardous item that you actually have to pick up at their warehouse…check it out if you live in the east coast of the US. Or you could buy some wafers, stick em in a ball mill, and see what happens…!

Powdered vanadium would oxidize much faster than chunks of the metal, so I don't exactly think that there are many uses for it outside the specialized Powder Metallurgy industry…just google it, I'd say. You can get dendritic V crystals on eBay, for a price, and they're very nice to look at, but certainly no powder.

And anyone besides a very experienced, safety-conscious chemical corporation would be absolutely nuts to deal with powdered arsenic.
View user's profile View All Posts By User
The_Davster
A pnictogen
*******




Posts: 2859
Registered: 18-11-2003
Member Is Offline

Mood: No Mood

[*] posted on 7-6-2006 at 15:42


We have a large ammount of all of those metals in the lab I work at, but that does not really help you.

I have seen vanadium powder on ebay once. The powder we have in the lab is kept under argon, too reactive to just be left in a bottle on the shelf.

I personally really really would avoid working with powdered arsenic, not because of the immediate toxicity, but because it is carcinogenic as well. It will be almost impossible for you to get ahold of any.

As for toxic elements I was offered some -325mesh powdered beryllium recently
"Hey ____(me) you want any powdered beryllium"
me: "Fuck no, keep that away from me"

I would have the same reaction to arsenic, but would not be against dustless lumps of either.




View user's profile View All Posts By User
=SkyNET=
Hazard to Self
**




Posts: 52
Registered: 16-4-2006
Member Is Offline

Mood: Randy baby :P

[*] posted on 7-6-2006 at 20:47


I suppose lumps would be good enough.
View user's profile View All Posts By User
woelen
Super Administrator
*********




Posts: 6564
Registered: 20-8-2005
Location: Netherlands
Member Is Offline

Mood: interested

[*] posted on 8-6-2006 at 11:37


Have a look at www.emovendo.net. They have lots of metals, including vanadium. They also have many non-metal or semi-metals. Silicon, selenium, sulphur, and many more. The only really difficult thing is arsenic. I've not seen an affordable source of arsenic yet, although I would love to have a few tens of grams for my element collection.



The art of wondering makes life worth living...
Want to wonder? Look at http://www.oelen.net/science
View user's profile Visit user's homepage View All Posts By User
Fleaker
International Hazard
*****




Posts: 1222
Registered: 19-6-2005
Member Is Offline

Mood: nucleophilic

[*] posted on 8-6-2006 at 12:03


I'd take the powdered beryllium. Melt it :) Look at www.smart-elements.com The guy there has many different samples, most high purity. IIRC, he can give you different forms, I don't know if he will do ultra fine powders though.
View user's profile View All Posts By User
ethan_c
Hazard to Others
***




Posts: 104
Registered: 5-6-2006
Member Is Offline

Mood: No Mood

[*] posted on 11-6-2006 at 23:46


Quote:
Originally posted by Fleaker
I'd take the powdered beryllium. Melt it :) Look at www.smart-elements.com The guy there has many different samples, most high purity. IIRC, he can give you different forms, I don't know if he will do ultra fine powders though.


This option should be a last resort for anybody. While their products certainly aren't bad, the prices on virtually all of those items are absolutely nuts- he recently put up a tungsten zone-refined monocrystal, for literally more than 6 times the price per gram I picked one up for from the EXACT SAME STOCK.
View user's profile View All Posts By User
Polverone
Now celebrating 15 years of madness
*********




Posts: 3144
Registered: 19-5-2002
Location: The Sunny Pacific Northwest
Member Is Offline

Mood: No Mood

[*] posted on 12-6-2006 at 17:49


Try www.micronmetals.com for vanadium and silicon. They've been recommended to me before by someone from this forum (can't remember who) and they seem to stock a wide variety of powdered materials for reasonable prices -- though their vanadium is priced as 'inquire.'



PGP Key and corresponding e-mail address
View user's profile Visit user's homepage View All Posts By User

  Go To Top