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Topic: formation of K3(Fe(C2O4)3.3H2O  (Read 20615 times)

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Offline moussa

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formation of K3(Fe(C2O4)3.3H2O
« on: November 29, 2005, 03:34:09 PM »
why do we add
K2C2O4.H2O +FeC2O4.23H2O  then in a next step we add  oxalic acid
instead of adding oxalic acid ? +FeC2O4.23H2O directly
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Offline lemonoman

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Re:formation of K3(Fe(C2O4)3.3H2O
« Reply #1 on: November 30, 2005, 01:02:28 AM »
Is THIS what you meant:

In the synthesis of K3(Fe(C2O4)3).3H2O,
Why do we add K2C2O4.H2O to Fe(C2O4)2.3H2O, and then add oxalic acid,
instead of adding an oxalic acid and Fe(C2O4)2.3H2O mixture, directly?

[Are we even supposed to try to fix messages like this?]
« Last Edit: November 30, 2005, 01:02:53 AM by lemonoman »
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Offline AWK

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Re:formation of K3(Fe(C2O4)3.3H2O
« Reply #2 on: November 30, 2005, 02:02:18 AM »
Write down a balanced reaction, and all will be clear.
You start from Fe(II), and finally you will obtain salt of Fe(III)

FeC2O4 + K2C2O4 + H2C2O4 + O2 = K3[Fe(C2O4)3] + H2O
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