Introduction: Demonstrating Magnesium Burning in Dry Ice

Music: Kevin MacLeod
Halloween 2007.

Has it been a year already? Well it is time for my halloween demos. This years halloween show will have 250 pounds of solid CO2 (dry ice) for my chemistry demonstrations. This reaction is between metallic magnesium and carbon dioxide. Magnesium reacts with oxygen in the air to form magnesium oxide, but when the only source of oxygen is from CO2 the reaction becomes much more energetic. The products are white magnesium oxide and blck carbon.

Instructions
Cut a block of dry ice into 2 large bloks with a hand saw
Carve a 1 inch deep divit in one of the blocks
Add a few grams of Magnesium metal to this block
Extend a fuse of magnesium out of this pile. The Mg will not light in the block (no Oxygen)
Once lit allow the reaction to proceed. It may take a few tries. Once lit, cover the dry ice with the other block. Stand back.
A safety shield is highly recommened for classroom demonstrations.

The reaction
2Mg + CO2--> 2MgO + C

Hazards:

1. Handle the dry ice with protective gloves.


2. Remove any combustible items because some burning Mg turnings may fly out.


3. Warn students not to stare directly at burning Mg. Dark colored safety glasses can be worn which absorb most of the UV light.

Comments

author
timmy1234s made it! (author)2008-08-30

you do know that when magneium wire is burned, it sets off UV rays, which can burn your eyes and are the type of rays from the sun right? Just saying

author
zombiehunter96 made it! (author)zombiehunter962010-04-20

Yeah I guess I'm lucky I don't have eye damage. My science teacher from my old school lit up a coil of magnesium and never said we shouldn't look at it   -_- She also hated me because I'm a bit of a redneck, she was an "eco-nut" and would always talk about how having a camp fire is bad and will destroy the earth from the polutants released >_<

author
red-king made it! (author)red-king2009-02-28

thats why you aren't supposed to look directly at it when its burning.

author
strmrnnr made it! (author)2010-02-27

Here is another awesome video from a very cool group of guys. They explain things really well.

http://www.youtube.com/watch?v=0dSMzg0UPPo

Check out these other groups will you are browsing YouTube:
Sixtysymbols
Nottinghamscience

author
maxpower49 made it! (author)2008-02-10

where can you get Mg and how long does the orange glow last

author
lord voldamort made it! (author)lord voldamort2009-07-11

try ebay i got 60 grams of shavings for about 20 dollars

author
franklinonline made it! (author)2009-03-29

that is cool

author
twenglish1 made it! (author)2008-03-01

were can you get dry ice

author
conrad2468 made it! (author)conrad24682008-07-30

the grocery store for .99 a pound

author
twenglish1 made it! (author)twenglish12008-07-30

do you live in the US cause i dont think i have seen it there

author
conrad2468 made it! (author)conrad24682008-07-30

yes i do live in the us.....its not for sale you have to be 18+ (unless your me) (its a small town) and you have to ask..

author
twenglish1 made it! (author)twenglish12008-07-30

yah thats what i thought i will need to get my mom or someone to buy it for me im only 14

author
conrad2468 made it! (author)conrad24682008-07-30

unless you live in a small town then just tell them its a "science experiment"

author
twenglish1 made it! (author)twenglish12008-07-30

ok yah i think the town i live in is pretty small but they will probably think im making a dry ice bomb or something

author
red-king made it! (author)red-king2009-02-28

they made a dry ice bomb on mythbusters... it was funny...

author
Vendigroth made it! (author)Vendigroth2008-09-22

Not in the UK ;_;

author
conrad2468 made it! (author)conrad24682008-09-22

LOL

author
Vendigroth made it! (author)Vendigroth2008-09-23

'S not funny ;_;

author
twenglish1 made it! (author)twenglish12008-09-23

yah it is you got owned!!! LOL jk

author
twenglish1 made it! (author)twenglish12008-09-22

haha owned!!!

author
conrad2468 made it! (author)conrad24682008-09-22

I guess you could say that

author
twenglish1 made it! (author)twenglish12008-09-22

yah idk i couldn't think of anything eles

author
conrad2468 made it! (author)2008-07-30

now tell me if im wrong but to make liquid methanol you heat wood chips in a test tube connected to a retort and voila liquid methanol erm condensed methanol? right?

author
Artificial Intelligence made it! (author)2008-06-11

Wow. Coolest lamp I've ever seen!!!!!!!!!

author
GorillazMiko made it! (author)2008-01-25

Yay, dry ice! You have A LOT of stuff/ chemicals, etc., I wish I was like you. But then I would probably be dead.

author
dunnos made it! (author)dunnos2008-05-19

if you were like him you would have the knowledge how to handle those chemicals but youll learn

author
drips made it! (author)2008-03-01

You could put a jack o'lantern face on it first then when it turns orange - pay off!

author
CoolKoon made it! (author)2008-02-22

Don't bother asking any question. The video uploader doesn't seem to care anyway......

author
askjacob made it! (author)2008-01-27

Very nice demonstration. Clear video and you know what you are doing - and it is stuff I'll never be able to do. Thanks for sharing this. A quick question - I would have thought all that heat would make the blocks shatter... I guess if there is a layer of black carbon it must be a pretty good insulator. There was far less dry ice consumed/sublimated than I would have guessed...

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