raivo Posted August 20, 2004 Share Posted August 20, 2004 Magnesium alloy pencil sharpeners are still available: http://www.bleistiftspitzer.com/Produkte.asp?Cat1=100&Cat2=200 I got two-hole sharpener ( exactly like pictured here ) from nearby supermarket. It was quite easy to scrap it with knife. Powder i got this way did what you expect of Mg. Note that you can test things for Mg by droping small quantities of vinegar onto it. Reaction is quite intense if metal is Mg, if metal is Al or Zn nothing happens. Link to comment Share on other sites More sharing options...
budullewraagh Posted August 21, 2004 Share Posted August 21, 2004 i could imagine it is just informative. i've been looking around for those for quite awhile, as magnesium is quite a good reducing agent. Link to comment Share on other sites More sharing options...
ydoaPs Posted August 21, 2004 Share Posted August 21, 2004 why do you guys want Mg? Link to comment Share on other sites More sharing options...
blike Posted August 21, 2004 Share Posted August 21, 2004 why do you guys want Mg? magnesium is quite a good reducing agent. Read please. Link to comment Share on other sites More sharing options...
ydoaPs Posted August 21, 2004 Share Posted August 21, 2004 what do you mean reducing agent? like to burn off chemicals from a solution or something? Link to comment Share on other sites More sharing options...
budullewraagh Posted August 21, 2004 Share Posted August 21, 2004 good call, blike what do you mean reducing agent? like to burn off chemicals from a solution or something? reducing agents oxidize easily and reduce things. adding magnesium metal to, say copper sulfate yields magnesium sulfate and copper metal. also, magnesium makes for some high quality flash powders:) highly pyrophoric Link to comment Share on other sites More sharing options...
YT2095 Posted August 23, 2004 Share Posted August 23, 2004 it also makes a fantastic electrode in a NaOH and copper cell, I used it in my Battery Challenge Link to comment Share on other sites More sharing options...
apathy Posted August 23, 2004 Share Posted August 23, 2004 it also makes a nice intense white flame, good for flash bulbs and the like edit: oops, bud... already said that Link to comment Share on other sites More sharing options...
Lance Posted August 23, 2004 Share Posted August 23, 2004 Umm... I just got a roll of magnesium ribbon in the mail. Why dont you just order some of that? Link to comment Share on other sites More sharing options...
budullewraagh Posted August 24, 2004 Share Posted August 24, 2004 the government watches you. Link to comment Share on other sites More sharing options...
alt_f13 Posted August 24, 2004 Share Posted August 24, 2004 do they use mg in sparklers? Methinks they do. A buddy and I scraped about 10 supersized sparklers into a pan and lit it in the middle of the road. You couldn't look at it from a block away without hurting your eyes. It also burned right through the pan. It was aluminum, not titanium or anything but still pretty cool...hot...cool...w/e [edit] Or do they use phosphorus? It's poisonus, so I'm not sure. Link to comment Share on other sites More sharing options...
budullewraagh Posted August 24, 2004 Share Posted August 24, 2004 phosphorous doesn't burn that brightly. it's magnesium. Link to comment Share on other sites More sharing options...
alt_f13 Posted August 24, 2004 Share Posted August 24, 2004 Well I figured they wouldn't make a child's plaything out of toxic material. [edit] I'm pretty sure they use phosphorus in military flares... which do burn that brightly, moreso infact. Plus, I have one more post than you... which makes me right...Forever, no returns. Link to comment Share on other sites More sharing options...
budullewraagh Posted August 24, 2004 Share Posted August 24, 2004 you'd be surprised; 45% H2O2 is in glowsticks. i thought they used strontium in military flares but hey i may be wrong. btw we're tied. [edit] and i average 3x as many posts as you do per day:) Link to comment Share on other sites More sharing options...
alt_f13 Posted August 24, 2004 Share Posted August 24, 2004 true, but I have been registered 3x as long lol Link to comment Share on other sites More sharing options...
coquina Posted August 24, 2004 Share Posted August 24, 2004 My dad started the company back in the 60's, when I was a teenager. We used to machine a lot of magnesium for NASA - you have to be very careful to keep the temperature down, and you can't use coolant on it, it will explode if you do. We had to keep tubes of dry chemical by the machines in case it caught on fire. I used to take the turnings outside put them on the concrete driveway, set them on fire, and sprinkle water on the flames, and jump back. The mg burns so hot, when you through water on it, it separates it into hydrogen and oxygen. If I recall correctly, magnesium is the material used for underwater welding. Link to comment Share on other sites More sharing options...
budullewraagh Posted August 24, 2004 Share Posted August 24, 2004 true, but I have been registered 3x as long lol true, that. and i'm a post ahead of you again:) I used to take the turnings outside put them on the concrete driveway, set them on fire, and sprinkle water on the flames, and jump back. The mg burns so hot, when you through water on it, it separates it into hydrogen and oxygen. ay, good stuff, no? Link to comment Share on other sites More sharing options...
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