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Chemical formula: NH4SCN
Synonyms: ammonium rhodanide, ammonium sulphocyanide, ammonium thiocyanide
Amount: 100 g
Appearance and odour: white powder without any appreciable odour
Grade: Chemically pure
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: an important pseudohalide compound, highly soluble in water and soluble also in acetone.
With Fe3+(aq) (ferric ion) it forms a blood red complex; FeSCN2+, a property used in analytical chemistry as a visual test for ferric ions. A KSCN solution is used in volumetric analysis as an indicator solution for redox titrations, using acidified ferric ammonium alum as titrant solution.
The red colour of the FeSCN2+ complex causes NH4SCN to be used for creating blood effects for film or theatre.
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