Thursday, 2 February 2012

Potassium Hexacyanoferrate (III) - K3Fe(CN)6 - 99 % - 100 g

Chemical formula: K3Fe(CN)6

Synonyms: potassium ferricyanide, Prussian red, Red prussiate

Amount: 100 g

Appearance and odour: red crystals without appreciable odour

Grade: 99 %

Packaging: professional wide necked, white HDPE bottle with blue conical seal cap and tamper ring. Labelled. Bottle and cap are UN approved and reusable.

Description and uses: one of the most important ferric complexes. So strongly complexed is the central Fe3+ ion that solutions of this compound do not exhibit reactions typical of ferric ions.

With ferrous ions (Fe2+) Prussian Blue (idealised: Fe7(CN)18) is formed and potassium hexacyanoferrate can thus be used as a detector of ferrous compounds.

Due to near perfect complexation, potassium hexacyanoferrate is relatively non-toxic, despite the high cyanide content. In highly acidic conditions the highly toxic gas HCN (hydrogen cyanide) may be formed, so caution is needed there.

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CAS: 13746-66-2
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