megalomania
June 10th, 2003, 01:59 PM
FadeToBlackened
Frequent Poster
Posts: 201
From: Hell
Registered: MAR 2001
posted 05-28-2001 10:32 PM
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I found this site a while back while doing some research on mercury for school. It has most/all of the elements and a little demonstration of what some of them do. On the 'Ag' (Silver) page it showed an MPEG of Silver Nitrate + Mg + H2O making a nice flash. Does anyone know whats going on in this reaction? And why does it have water?
www.webelements.com should get you there then click on Ag or just click here
[This message has been edited by FadeToBlackened (edited May 29, 2001).]
Cipolla
New Member
Posts: 37
From:
Registered: MAY 2001
posted 05-29-2001 03:36 AM
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That a mixture of AgNO3 with Mg burns like sown on the picture is clear and I think that the water ist taken to ignite the mixure. AgNO3 is very good soluable in water and the solution is acidic, causing a reaction with the magnesia that ignites the mixture....
PHILOU Zrealone
Frequent Poster
Posts: 479
From: Brussels,Belgium,Europe
Registered: SEP 2000
posted 05-29-2001 10:41 AM
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Right if you put a solution of an salt of a metal in contact with a metal that is a stronger reducer than the first one...you get an exchenge reaction that heats up the stuff especially if highly concentrate and if the metal is really a strong reducer!
Here:
Mg + 2AgNO3 -(H2O)-> Mg(NO3)2 + 2Ag
This reaction doesn't need water and a fire can do the same!
After with the heat!
3Mg + AgNO3 --> 3MgO + Ag + 1/2N2
Mg(NO3)2 + 5Mg --> 6MgO + N2
Interesting but quite expensive!
Maybe this can be done with Copper nitrate instead and Al powder!Less expensive but also surely less effective!
Frequent Poster
Posts: 201
From: Hell
Registered: MAR 2001
posted 05-28-2001 10:32 PM
--------------------------------------------------------------------------------
I found this site a while back while doing some research on mercury for school. It has most/all of the elements and a little demonstration of what some of them do. On the 'Ag' (Silver) page it showed an MPEG of Silver Nitrate + Mg + H2O making a nice flash. Does anyone know whats going on in this reaction? And why does it have water?
www.webelements.com should get you there then click on Ag or just click here
[This message has been edited by FadeToBlackened (edited May 29, 2001).]
Cipolla
New Member
Posts: 37
From:
Registered: MAY 2001
posted 05-29-2001 03:36 AM
--------------------------------------------------------------------------------
That a mixture of AgNO3 with Mg burns like sown on the picture is clear and I think that the water ist taken to ignite the mixure. AgNO3 is very good soluable in water and the solution is acidic, causing a reaction with the magnesia that ignites the mixture....
PHILOU Zrealone
Frequent Poster
Posts: 479
From: Brussels,Belgium,Europe
Registered: SEP 2000
posted 05-29-2001 10:41 AM
--------------------------------------------------------------------------------
Right if you put a solution of an salt of a metal in contact with a metal that is a stronger reducer than the first one...you get an exchenge reaction that heats up the stuff especially if highly concentrate and if the metal is really a strong reducer!
Here:
Mg + 2AgNO3 -(H2O)-> Mg(NO3)2 + 2Ag
This reaction doesn't need water and a fire can do the same!
After with the heat!
3Mg + AgNO3 --> 3MgO + Ag + 1/2N2
Mg(NO3)2 + 5Mg --> 6MgO + N2
Interesting but quite expensive!
Maybe this can be done with Copper nitrate instead and Al powder!Less expensive but also surely less effective!