Experiments for 'oxalic acid'
Below follows a summary of all experiments, matching your search. Click one of the EXPERIMENT hyperlinks for a complete description of the experiment.
Results for 'oxalic acid':
EXPERIMENT 1
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Ferrous ions give a yellow coordination complex with oxalate. The normal
color of ferrous ions is pale green. Ferric ions give a green coordination
complex with oxalate. The normal color of ferric ions is yellow/brown.
The ferric complex is only formed if the environment is not too acidic.
EXPERIMENT 2
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Ferric ions form coordination complexes with citrates and oxalates. These
coordination complex have completely different properties than free
ferric ions.
EXPERIMENT 3
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Potassium permanganate easily oxidizes oxalic acid. Succinic acid is not
oxidized easily.
EXPERIMENT 4
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Oxalic acid is supposed to react with sulfuric acid, forming carbon monoxide.
The experiment, described below, however, did not yield such results.
EXPERIMENT 5
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Vanadyl ions do not precipitate with ferricyanide, when a large excess
amount of oxalic acid is present. Without the presence of oxalic acid
the two compounds form a green/yellow/brown precipitate (see other
experiments).
EXPERIMENT 6
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Oxalic acid does not seem to form a coordination complex with vanadyl ions,
or if a complex is formed, then it has a color, which is almost the same of
the color of aquated vanadyl.
EXPERIMENT 7
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Chromium (III) has many different colors, depending on coordinated ligands.
EXPERIMENT 8
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Chromium (III) has many different colors, depending on coordinated ligands.
EXPERIMENT 9
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Chromium (III) gives coordination complexes of all kinds of colours, when
formed from a redox reaction, starting with dichromate.
End of results for 'oxalic acid'