Reactions and characterisation of aliphatic nitro compounds

The following reactions will assist in the detection of aliphatic nitro compounds. 

Add a little of the sodium derivative to about 5 ml. of water in a test-tube, followed by a drop of ferric chloride solution. A deep red colouration is produced but rapidly disappears as the iron is precipitated as ferric hj droxide. 

Most aliphatic nitro compounds are liquids the physical properties (boiling point, density and refractive index) therefore provide valuable information for purposes of identification. 

The physical properties of a number of aliphatic nitro compounds are listed in Table IV,16B. 

10 per cent, sodium hydroxide solution it dissolves to produce, in general, a yellow solution. Acidify with dilute hydrochloric acid the nitro compound is regenerated. 

The amine is fairly volatile and cannot be diazotised (see Section 111,123). 

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For a discussion of the Reactions and Characterisation of Aliphatic Nitro Compounds, see Section IV,16B.)... 

IV,16A. Reactions and characterisation of aromatic ilitro compounds IV,16B. Reactions and characterisation of aliphatic nitro compounds... 

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