Experiments for 'sodium borohydride'
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 'sodium borohydride':
EXPERIMENT 1
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Gold (III) is reduced by borohydride to its metallic state. A colloidal
"solution" of gold is formed.
EXPERIMENT 2
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Vanadium in the +4 oxidation state is not reduced to vanadium in a lower
oxidation state by borohydride.
EXPERIMENT 3
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Borohydride is capable of reducing copper to its metallic state.
EXPERIMENT 4
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Borohydride is capable of reducing cobalt (II) to the metallic state.
EXPERIMENT 5
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Rhenium can be oxidized to colorless perrhenate [ReO4]-, with nitric acid.
With zinc it can be reduced to a yellow/green species in the presence of
hydrochloric acid at sufficient concentration. This species apparently is
not reduced any further with borohydride in alkaline environments. In
acidic environments, a dark brown/black compound can be formed easily,
due to reduction of thiosulfate to sulfide by the borohydride. The sulfide
forms a dark compound with rhenium.
With sulfite, perrhenate nor the yellow/green compound can be reduced to
a lower oxidation state.
EXPERIMENT 6
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Chromium (III) is not reduced to chromium (II) by borohydride. Alkaline
chromium (VI) is only reduced slowly by borohydrode. On acidification the
reduction goes at once, but no further than the +3 oxidation state.
EXPERIMENT 7
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Manganese (II) is not reduced to the metal, it forms a white precipitate
with borohydride, which remains white for a long time. This precipitate
does not turn brown, as manganese (II) precipitates normally do in
alkaline environments.
EXPERIMENT 8
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Ferric ions are reduced by borohydride to a black compound. Is this
metallic iron or is this iron (II) oxide?
EXPERIMENT 9
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Borohydride is capable of reducing nickel to the metallic state in
aqueous media.
EXPERIMENT 10
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Nickel(II) ion is reduced in slightly alkaline environment by borohydride ion,
but only with difficulty, when the mix is heated.
End of results for 'sodium borohydride'