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Diphenylthiocarbazone

Dpon heating diphenylthiocarbazide with methyl alcohohc potassium hydroxide dithizone (or diphenylthiocarbazone) (III) is produced ... [Pg.956]

The nature of the donor atoms in the chelating agent. Ligands which contain donor atoms of the soft-base type form their most stable complexes with the relatively small group of Class B metal ions (i.e. soft acids) and are thus more selective reagents. This is illustrated by the reagent diphenylthiocarbazone (dithizone) used for the solvent extraction of metal ions such as Pd2+, Ag+, Hg2+, Cu2+, Bi3+, Pb2+, and Zn2 +. ... [Pg.164]

Discussion. Diphenylthiocarbazone (dithizone) behaves in solution as a tautomeric mixture of (C) and (D) ... [Pg.179]

Diphenylcarbazide as adsorption indicator, 358 as colorimetric reagent, 687 Diphenylthiocarbazone see Dithizone Direct reading emission spectrometer 775 Dispensers (liquid) 84 Displacement titrations 278 borate ion with a strong acid, 278 carbonate ion with a strong acid, 278 choice of indicators for, 279, 280 Dissociation (ionisation) constant 23, 31 calculations involving, 34 D. of for a complex ion, (v) 602 for an indicator, (s) 718 of polyprotic acids, 33 values for acids and bases in water, (T) 832 true or thermodynamic, 23 Distribution coefficient 162, 195 and per cent extraction, 165 Distribution ratio 162 Dithiol 693, 695, 697 Dithizone 171, 178... [Pg.861]

Diethyidithiocarbamate a,a1-Dipyridyl Diphenylthiocarbazone 8-Hydroxyquinoline Isonicotinic add hydrazide... [Pg.304]

Theory In solution, dithizone (diphenylthiocarbazone) exhibits tautomerism as shown below ... [Pg.404]

P) C. Swanston, ProcRoySocMed 36, 633—38 (1943)(Dermatitis caused by MF and Tetryl are discussed) Q) H.S. Mason I. Botvinik, USPubHealthRept 58, 1183-86 (1943) (Dermatitis caused by MF can be prevented by using special soap contg thioechanolamine and diphenylthiocarbazone) R) Clift Fedoroff, Vol 1(1943), Chap XVIII, Part 1, pp 1—4 (Prepn props of MF and tests)... [Pg.608]

An interesting method (88) for the separation of trace amounts of polonium makes use of the volatility of some, as yet unidentified, organic compounds. Polonium complexes with diphenylearbazonc, diphenylear-bazide and diphenylthiocarbazone sublime below 100°C under atmospheric pressure and those with thiourea, 8-hydroxyquinoline, s-diphenylthiourea, thioseinicarbazide and other related compounds sublime below 160°C under the same conditions. Thus trace polonium has been separated from dilute nitric acid in the presence of diphenyl carbazide by steam distillation. [Pg.202]

Dithizonotes or Dithiozonates. These are salts of dithizone or diphenylthiocarbazone, C6H5N N.CS.NH.NH.C6H5. Dtthizonates of silver, lead, zinc copper were prepd in two ways 1) pptn by addn of the cation soln to t an ammoniacal soln of dithizone and 2) treatment of a chlf soln of dithizone with an aq soln of the cation. All showed rapid, almost expl decompn at the following temps Silver 186Lead 215°, Zinc 225° Copper 150°. Above the expl decompn, slow addnl... [Pg.408]

Dithizone (diphenylthiocarbazone) is a green compound that is soluble in nonpolar organic solvents and insoluble in water below pH 7. It forms red, hydrophobic complexes with most di- and trivalent metal ions. [Pg.504]

Glutathione Sol-gel graphite composite SPCEs incorporating surfactant, CoPC/ diphenylthiocarbazone Cyclic voltammetry, electrocatalytic oxidation of GSH... [Pg.514]

Methylamino-5-(l-methylalIylamino)-l,3,4-thiadiazoIe is an oxidation product of methallibure, a veterinary oestrus regulator. Separation can be achieved by chromatography on alkylated polydextran gel and elution with mixed organic solvents. Metal salts can be removed by complexation with diphenylthiocarbazone (70JPS835). [Pg.556]

Diphenyl-2-pyrroline, 27, 33 Diphenyl selenide, 24, 91 Diphenylthiocarb azide, 25, 38 Diphenylthiocarbazone, 25, 38 Dl- -PROPYI.AMINOETIIYI.AMINE, 23, 24 y-Di-n-propylaminopropylamine, 24, 46 Disproportionation, of diphenylthio-... [Pg.54]

See other pages where Diphenylthiocarbazone is mentioned: [Pg.145]    [Pg.955]    [Pg.872]    [Pg.395]    [Pg.410]    [Pg.227]    [Pg.454]    [Pg.171]    [Pg.70]    [Pg.955]    [Pg.86]    [Pg.1141]    [Pg.1245]    [Pg.371]    [Pg.400]    [Pg.147]    [Pg.568]    [Pg.203]    [Pg.413]    [Pg.203]    [Pg.413]    [Pg.172]    [Pg.955]    [Pg.1173]    [Pg.40]    [Pg.814]    [Pg.871]    [Pg.256]    [Pg.371]    [Pg.536]    [Pg.244]    [Pg.560]    [Pg.807]   
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See also in sourсe #XX -- [ Pg.955 , Pg.956 ]

See also in sourсe #XX -- [ Pg.25 , Pg.38 ]

See also in sourсe #XX -- [ Pg.25 , Pg.38 ]

See also in sourсe #XX -- [ Pg.25 , Pg.38 ]

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See also in sourсe #XX -- [ Pg.955 , Pg.956 ]

See also in sourсe #XX -- [ Pg.955 , Pg.956 ]

See also in sourсe #XX -- [ Pg.25 , Pg.38 ]

See also in sourсe #XX -- [ Pg.25 , Pg.38 ]

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Diphenylthiocarbazone complexation

Diphenylthiocarbazone extractions with

Dithizone, diphenylthiocarbazone

Solvent extraction diphenylthiocarbazone

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