Sentence Examples


  • AZO COMPOUNDS, organic substances of the type R N:N R' (where R = an aryl radical and R' = a substituted alkyl, or aryl radical).
  • The azo compounds are intensely coloured, but are not capable of being used as dyestuffs unless they contain salt-forming, acid or basic groups.
  • The most easily obtained mixed azo compounds are those formed by the union of a diazonium salt with the potassium or sodium salt of a nitroparaffin (V.
  • It acts as a weak antiseptic. It is used for enriching coal gas, as a vermin killer, in the manufacture of certain azo dyes, and in the preparation of phthalic acid (q.v.).
  • Witt), and by the decomposition of ortho-anilido-(-toluidido- &c.)-azo compounds with dilute acids.