Gilman test

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The Gilman test is a chemical test for the detection of Grignard reagents and organolithium reagents.[1][2]

A 0.5 mL sample is added to a 1% solution of Mischler's ketone in benzene or toluene. To this solution is added 1 mL of water for hydrolysis to take place and then several drops of 0.2% iodine in glacial acetic acid. If the color of the resulting solution becomes a greenish-blue then the original sample did contain the organometallic species.


  1. ^ Henry Gilman and F. Schulze (1925). "A qualitative color test for the Grignard reagent". J. Am. Chem. Soc. 47 (7): 2002–2005. doi:10.1021/ja01684a032. 
  2. ^ "Cyclohexylcarbinol". Org. Synth. 1941. ; Coll. Vol., 1, p. 188