title: Gravimetric determination of iodine as tetraphenylarsonium tri-iodide.
abstract: Tetraphenylarsonium tri-iodide has been prepared and its properties studied. On the basis of its stability and very low solubility a gravimetric method for the determination of mg amounts of iodine has been developed. The mean relative error for amounts of 1-6 mg is about +0.3%. CO(3)(2-). wSO(4)(2-). NO(3)(-) Cl(-)and Br(-) do not interfere.
authors.affiliation: Department of Analytical Chemistry, Institute of Chemical Technology and Metallurgy, Sofia, Bulgaria.
authors.forename: N
authors.initials: N
authors.lastname: Gantchev
authors.forename: A
authors.initials: A
authors.lastname: Kireva