In the first step, we produced the appropriate reactants including solid iodine and cetyl trimethyl ammonium iodide
1 M tetra-n-butyl ammonium iodide
in the presence of an equivalent of phosphonium salt (PhCH:CHCH2P+Ph3NO3-), also exhibit formation of dianion which is sufficiently basic enough, stronger base than its bromo derivative, to accept a proton from the added phosphonium salt.
Williams and Kenyon  have used tetra methyl ammonium iodide
(TMAI) as the electrolyte of choice for determining DBP by cathode-ray polarography in the presence of methanol solvent while Tanaka and Takeshita  have used 0.
5 wt% ammonium iodide
impregnated EB activated carbons were repeated in order to determine the random experimental error in the results.
Contract Awarded for Supply of AMMONIUM IODIDE