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Ferric Chloride colour


rvdzero

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hey all! i made some ferric chloride the other day and it was a nice vibrant greeny yellow colour, but over time it had turned brownish. It is stored in a jar. Would the stuff in the jar still be ferric chloride? Thanks, rick

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This stuff was meant to be the oxidised form. It hasn't oxidised.

 

Adding steel wool would turn it into something else.

 

It has, as was pointed out earlier, picked up watter (possibly lost HCl too) and hydrolysed.

In solution FeCl3 is greenish yellow (usually with a brown sludge at the bottom) This is the colour of the FeCl4- ion.

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