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Vanadium iodates

The liberated iodine and the excess of iodide is determined by titration with standard potassium iodate solution the hydrochloric acid concentration must not be allowed to fall below 7JVf in order to prevent re-oxidation of the vanadium compound by iodine chloride. [Pg.404]

Iodargyrite, natural occurrence of, 22 668 Iodates, 14 374-375 Iodate solutions, 14 362 Iodic acid, 14 375 Iodide analysis, of water, 26 41 Iodide ion, 14 367-368 25 488 Iodide-refining method, 26 149 for vanadium, 25 520 Iodides, 14 374 thorium, 24 763 tungsten, 25 379-380 uranium, 25 439... [Pg.486]

Bis(cyclopentadienyl)bis(pentafluorophenyl)zirconium, 3824 Bis(cyclopentadienyldinitrosylchromium), 3269 Bis(cyclopentadienyl)hexafluoro-2-butynechromium, 3629 Bis(cyclopentadienyl)lead, 3288 Bis(cyclopentadienyl)magnesium, 3271 Bis(cyclopentadienyl)manganese, 3272 Bis(cyclopentadienyl)niobium tetrahydroborate, 3318 Bis(cyclopentadienyl)pentafluorophenylzirconium hydroxide, 3696 Bis(cyclopentadienyl)phenylvanadium, 3698 Bis(cyclopentadienyl)titanium selenate, 3287 Bis(cyclopentadienyl)tungsten diazide oxide, 3279 Bis(cyclopentadienyl)vanadium diazide, 3280 Bis(cyclopentadienyl)zirconium, 3290 Bis(l,2-diaminoethane)diaquacobalt(III) perchlorate, 1787 Bis(l,2-diaminoethane)dichlorocobalt(III) chlorate, 1780 Bis(l,2-diaminoethane)dichlorocobalt(III) perchlorate, 1781 c/i-Bisf 1,2-diaminoethane)dinitrocobalt(III) iodate, 1782 Bis(l,2-diaminoethane)dinitrocobalt(III) perchlorate, 1778 Bis(l,2-diaminoethane)hydroxooxorhenium(V) perchlorate, 1785 Bis(l, 2-diaminopropane)-ds-dichlorochromium(III) perchlorate, 2609 1,10-Bis(diazonio)decaboran(8)ate, 0197... [Pg.2052]

Tetrafluoroammonium hexafluoromanganate, 4378 Tetrafluoroammonium hexafluoronickelate, 4379 Tetrafluoroammonium hexafluoroxenate, 4380 Tetranitromethane, 0543 Titanium tetraperchlorate, 4164 1,1,1 -Triacetoxy-1,2-benziodoxol-3-one, 3604 Trifluoromethyl hypofluorite, 0352 Trimethylsilyl chlorochromate, 1297 Trioxygen difluoride , 4317 Uranium hexafluoride, 4369 Vanadium trinitrate oxide, 4758 Vanadium(V) oxide, 4860 Vanadyl perchlorate, 4146 Xenon hexafluoride, 4371 Xenon tetrafluoride, 4347 Xenon tetrafluoride oxide, 4340 Xenon tetraoxide, 4857 Xenon trioxide, 4851 Xenon(II) pentafluoroorthoselenate, 4376 Xenon(II) pentafluoroorthotellurate, 4377 Zinc permanganate, 4705 ACETYLENIC PEROXIDES ACYL HYPOHALITES ALKYL HYDROPEROXIDES ALKYL TRIALKYLLEAD PEROXIDES AMINIUM IODATES AND PERIODATES AMMINECHROMIUM PEROXOCOMPLEXES BIS (FLUOROOXY)PERHALOALKANES BLEACHING POWDER CHLORITE SALTS... [Pg.2503]

Other work dealing with this reaction includes a study of the exchange reaction in fused alkali nitrate solutions and an examination of the effect of sulphide ion on catalysis by vanadium(V) and molybdenum(VI) . Another group of experimental investigations of the iodate-iodide reaction has been primarily concerned with the Landolt reaction (p. 388). These are satisfactorily interpreted in terms of Dushman s original rate expression. [Pg.384]

Colour systems suitable for use in the spectrophotometric method may also be formed in redox reactions. Some examples of such reactions are the oxidation of Mn(II) to Mn04" or Cr(III) to Cr04, oxidation of dimethylnaphthidine with vanadium(V) or chromium(VI), oxidation of o-tolidine with cerium(lV) or with chlorine. Examples of oxidation reactions are also the iodide methods, in which iodide ions are oxidized with bromine to give iodate ions which, in turn, react with the excess of iodide anions to form free iodine (see Chapter 25). A colour effect of reduction also occurs, for example, in determinations of Se and Te in the form of coloured sols produced in the reduction of Se(lV) or Te(IV) to their elementary forms. [Pg.46]

Thallium(I) iodate XIIO3 -86.8 Vanadium(V) oxide V2O5 +128... [Pg.817]

A scaled down procedure, appKcable to the titration of 4 mg of plutonium, was set up at lAEA/SAL with the assistance of Dounreay (MacDonald and Savage 1987) and of the Nuclear Research Institute in Rez (CSSR) (Kuvik 1991). This made possible to receive and titrate samples of Pu products taken in Japanese fadhties, as only mg amounts of plutonium can be air flown from Japan in Type A packages. The process including the preliminary redox steps, was automatized to achieve coefficients of variation of 0.05% (Kuvik et al. 1992 Ronesch et al. 1992). 23 species do not interfere, but vanadium does quantitatively, and Np partially. The test sample should carry less than mg-amounts of nitrite, fluorosUicate, and iodate. The effect of americium remains to be studied (ISO 2000). [Pg.2974]

Periodate and lodate.— The oxidation of vanadium(iv) by iodate(vii) proceeds via an inner-sphere mechanism with rate law... [Pg.101]

See other pages where Vanadium iodates is mentioned: [Pg.259]    [Pg.404]    [Pg.313]    [Pg.23]    [Pg.90]    [Pg.180]    [Pg.313]    [Pg.178]    [Pg.1963]    [Pg.98]    [Pg.383]   
See also in sourсe #XX -- [ Pg.90 ]



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