Osmium-Info
Detection

Detection

The element osmium is detected via its compound osmium tetroxide. The detection reaction is specific, however, it is not recommended due to its toxicity.

The solution containing the osmium is dropped on a filter paper which has been previously moistened with a benzidine or potassium hexacyanoferrate solution. In case of the benzidine solution, the filter paper turns purple. In the case of the potassium hexacyanoferrate solution, the paper changes its colour to light green.

However, more and more instrumental techniques are being used today to detect osmium. Examples include atomic spectrometry, neutron activation analysis and voltammetry. With these methods, a more accurate determination is possible.

 

 
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Detection