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Topic: Chemical reaction for formation of YAG?  (Read 2790 times)

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Offline Gideon513

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Chemical reaction for formation of YAG?
« on: June 13, 2013, 10:26:30 AM »
does anyone know the balanced equation for the reaction of yttrium nitrate and aluminum nitrate?

so...  Y(NO3)3+Al(NO3)3 :rarrow: Y3Al5O12 + ...

I know there are some other products but not entirely sure, N2, O2, NO2?

help would be appreciated

Offline AWK

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Re: Chemical reaction for formation of YAG?
« Reply #1 on: June 13, 2013, 11:13:00 AM »
Synthesis of ytrium aluminium garnet needs at least temperature
of 1000-1200 C.
In this conditions the most thermodynamically stable is NO (when alone). But in the presence of oxygen NO is partially decomposed to nitrogen. Stoichiometry needs a defined products of reaction - hence my advice - use NO and O2 for balancing.
AWK

Offline Gideon513

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Re: Chemical reaction for formation of YAG?
« Reply #2 on: June 13, 2013, 11:37:26 AM »
Thanks for the respons
By using that I get...

3Y(NO3)3 + 5Al(NO3)3 + H2:rarrow: Y3Al5O12 + 24NO + 18O2 + H2O

Does this seem like a reasonable reaction?

Offline AWK

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Re: Chemical reaction for formation of YAG?
« Reply #3 on: June 14, 2013, 07:33:57 AM »
The same reagent cannot be on both sides. Remove water, then the rest of equation will be OK
AWK

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