Determination of thiourea and its organic derivatives with iodine trichloride.
Thiourea and its organic derivatives and thiosemicarbazide are determined in water, methanol or glacial acetic acid medium by reaction with an excess of iodine trichloride in the presence of mercuric chloride. The reaction is complete in 15 min. The excess of iodine trichloride is evaluated by adding potassium iodide and titrating the liberated iodine with thiosulphate. A variety of organic thioureas can be determined with an average accuracy and precision of 0.2%.
Verma
K K
KK
Department of Chemistry, Government Science College, Jabalpur 482001, India.
Sahasrabuddhey
M P
MP
Bose
S
S