Housane - 27-3-2019 at 00:27
Hi All
Is ferric ammonium citrate light senstive in crystal form? If so must it be stored is a black bottle?
Thanks for the help
Housane
[Edited on 27-3-2019 by Housane]
PirateDocBrown - 27-3-2019 at 08:40
Correct. Light transfers an electron from the citrate to the iron, reducing it to ferrous state. It is slower in dry form than in water solution, but
it does happen.
The creation of reactive ferrous iron in this manner is the basis of the reaction with potassium hexacyanoferrate, to produce Prussian Blue. It is
this light sensitivity that makes blueprints possible.
fusso - 27-3-2019 at 09:21
What's citrate oxidized to?
Housane - 27-3-2019 at 12:22
Thanks for the help PirateDocBrown