DionSukhram6
Harmless
Posts: 16
Registered: 7-4-2017
Location: New York
Member Is Offline
Mood: No Mood
|
|
Cheap/Easy Sources of Magnesium Metal
I need some Mg metal immediately for a project I'm working on so I would prefer to find somewhere I can go and buy it from. For example, I can get a
bunch of cheap magnesium fire starters, but how much Mg do they actually have?
|
|
|
Melgar
Anti-Spam Agent
Posts: 2004
Registered: 23-2-2010
Location: Connecticut
Member Is Offline
Mood: Estrified
|
|
I pulled mine out and weighed it. They're about 30 grams, give or take.
|
|
|
PirateDocBrown
National Hazard
Posts: 570
Registered: 27-11-2016
Location: Minnesota
Member Is Offline
Mood: No Mood
|
|
Pyrotechnics suppliers. Pretty sure Skylighter has turnings for $8 a pound or so.
[Edited on 6/8/17 by PirateDocBrown]
|
|
|
ELRIC
Hazard to Others
Posts: 244
Registered: 23-2-2015
Location: Kentucky
Member Is Offline
Mood: No Mood
|
|
The old Lawnboy push mower frames were made out of Mg, if that helps any.
[Edited on 7-6-2017 by ELRIC]
|
|
|
Σldritch
Hazard to Others
Posts: 310
Registered: 22-3-2016
Member Is Offline
Mood: No Mood
|
|
You can buy magnesium boat sacrifical anodes.
Also found this on ebay, not very pure but pretty cheap:
http://www.ebay.com/sch/i.html?_odkw=magnesium+metal+98%25+i...
I have not ordered any yet so im not sure if it is legitimate.
[Edited on 8-6-2017 by Σldritch]
|
|
|
Morgan
International Hazard
Posts: 1705
Registered: 28-12-2010
Member Is Offline
Mood: No Mood
|
|
Oddly there's some 5 ounce magnesium coins for sale on eBay.
|
|
|
RogueRose
International Hazard
Posts: 1596
Registered: 16-6-2014
Member Is Offline
|
|
Look for old apple laptop computer frames as well as Dell (Latitude and dimensions series) laptops. The shells and frames are often Mg (the part that
is the back of the LCD - the "clam-shell" type part). A lot of these look like they are plastic, but they are in fact magnesium. I'm pretty sure
most apple pro (and especially Air notebook's) are Mg.
Other than this, fireworks suppliers I would think.
|
|
|
j_sum1
Administrator
Posts: 6335
Registered: 4-10-2014
Location: At home
Member Is Offline
Mood: Most of the ducks are in a row
|
|
I have found Mg ribbon in 25g rolls for as cheap as a dollar each.
My most recent purchase was 100g blocks (I think they are ingot offcuts of some kind). They were IIRC 3.5 USD each.
So, Mg does not need to be that expensive.
I have not even looked at magnesium alloy wheels. i am pretty sure that you would find a large number of alloying elements -- especially aluminium.
But it might be more than suitable for many applications. And you could probably pick up damaged ones for next to nothing from a car wrecker.
|
|
|
Sulaiman
International Hazard
Posts: 3724
Registered: 8-2-2015
Location: 3rd rock from the sun
Member Is Offline
|
|
I have ribbon, cylinder, powder form magnesium of high purity (from electrolytic cell experiments),
magnesium via eBay is surprisingly cheap.
I suspect that like aluminium, many manufactured magnesium products may be alloys, not sure.
[Edited on 8-6-2017 by Sulaiman]
[Edited on 8-6-2017 by Sulaiman]
CAUTION : Hobby Chemist, not Professional or even Amateur
|
|
|
violet sin
International Hazard
Posts: 1482
Registered: 2-9-2012
Location: Daydreaming of uraninite...
Member Is Offline
Mood: Good
|
|
http://m.ebay.com/itm/44-Magnesium-Sacrificial-Anode-Rod-for...
30$ 2lb sac anode for water heater, free shipping , of course Im sure you could pull one from a scrap yard for nearly free... the waterheater need
not be working for the rod to be salvaged.
|
|
|
Fulmen
International Hazard
Posts: 1726
Registered: 24-9-2005
Member Is Offline
Mood: Bored
|
|
Any shaped product will be made from Mg alloy, these usually contain 5-10% Al, perhaps 0,5% Mn and up to 1% Zn.
A quick test is to place a drop of silver nitrate on bare metal, pure Mg will instantly turn black.
We're not banging rocks together here. We know how to put a man back together.
|
|
|
NedsHead
Hazard to Others
Posts: 409
Registered: 9-12-2014
Location: South Australia
Member Is Offline
Mood: No Mood
|
|
My pencil sharpener claims to be magnesium, it was cheap and easily available
|
|
|
diddi
National Hazard
Posts: 723
Registered: 23-9-2014
Location: Victoria, Australia
Member Is Offline
Mood: Fluorescent
|
|
aeroplane wheels are Mg also. might be able to get scrap from airport mechanic
Beginning construction of periodic table display
|
|
|
DionSukhram6
Harmless
Posts: 16
Registered: 7-4-2017
Location: New York
Member Is Offline
Mood: No Mood
|
|
Ok that was helpful and I was able to get a good amount of solid Mg but I could use about half a mole of it ground up into powder. I've tried a steel
file but I haven't even been able to get a gram of powder yet.
|
|
|
subskune
Hazard to Self
Posts: 71
Registered: 30-4-2017
Member Is Offline
Mood: No Mood
|
|
If you only want to carry out a reduction that does not care much about the reducing agent you can make a 50/50 al/mg alloy which can be powderized
with a hammer.
|
|
|
Melgar
Anti-Spam Agent
Posts: 2004
Registered: 23-2-2010
Location: Connecticut
Member Is Offline
Mood: Estrified
|
|
Yeah, don't listen to the user saying you should melt it down with aluminum. A magnesium fire is not something you want to deal with.
I've had the best luck drilling holes in it and collecting the shavings.
The first step in the process of learning something is admitting that you don't know it already.
I'm givin' the spam shields max power at full warp, but they just dinna have the power! We're gonna have to evacuate to new forum software!
|
|
|
subskune
Hazard to Self
Posts: 71
Registered: 30-4-2017
Member Is Offline
Mood: No Mood
|
|
| Quote: |
Yeah, don't listen to the user saying you should melt it down with aluminum. A magnesium fire is not something you want to deal with.
|
Thats true but it won't catch fire. I have done this many times and a small ceramic crucible in a muffle oven with lid on served very well and there
was no fire at all. It shouldn't be put in open air thats right.
[Edited on 11-6-2017 by subskune]
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
