Zirconium dithiocarbamate

Titanium and zirconium dithiocarbamates are prepared with the metal in the oxidation state + 4, whereas the hafnium dithiocarbamato chemistry is unknown. 

Disodium Arsenate Heptahydrate Disodium Ethylenebis (Dithiocarbamate) Disodium Methanearsonate Disodium Methyl Arsonate Disodium Nitrilotriacetate Distillate Flashed Feed Stocks Distillate Straight Run Disulfatozirconic Acid Dithane Sodium Arsenate Nabarn Methanearsonic Acid, Sodium Salts Medianearsonic Acid, Sodium Salts Nitrilotriacetic Acid and Salts Distillate Flashed Feed Stocks Distillate Straight Run Zirconium Sulfate Nabam... 

Two recent papers on [(jj-C5H5)M(S2CNMe2)3] (M = Zr or Hf) and [(rj-C5H5)2ZrCl(S2CNR2)] (R = Me or Et) are mentioned in passing to provide an entry into the current literature on organo-zirconium and -hafnium dithiocarbamate complexes. 

ZAA. See Zirconium acetate Zappit . See Calcium hypochlorite Zb -112, Zb -223, Zb -237 Zb -325 Zb -467. See Zinc borate ZBEC ZBED ZBeDC. See Zinc dibenzyl dithiocarbamate... 

Another method that has been employed with some success to preconcentrate elements in natural water samples is co-precipitation. This relatively simple method offers the advantage of giving a fairly uniform deposit that can be collected easily. One of the earlier applications of this technique involved the use of iron hydroxide as a co-precipitant for the determination of Fe, Zn, and Pb in surface waters [56]. One of the more popular co-precipitants in use today is ammonium pynolidine dithiocarbamate (APDC). In the application of this method to the analysis of natural waters, detection limits in the range 0.4-1.2 ppb have been claimed for the elements V, Zn, As, Hg, and Pb [57]. Other co-precipitants have been described, including the use of iron dibenzyl dithiocarbamate for the determination of U at the ppb level in natural waters [58], zirconium dioxide for the determination of As in river water [59], and polyvinylpyrrolidone-thionalide for the determination of Fe, Cu, Zn, Se, Cd, Te, Hg, and Pb in waste and natural water samples [60]. The use of... 

Group 4 (IV B) dithiocarbamate chemistry is constrained to the 4-4 oxidation state. The first reported example was the eight-coordinate tetrakis(dithiocarba-mate) titanium complex, [Ti(S2CNBz2)4], prepared by Dermer and Femelius in 1934 (608), while the heavier zirconium and hafnium analogues were first prepared by Bradley and Gitlitz (193) from the reaction of metal amides, [M(NR2)4] (M = Ti, Zr, Hf), with carbon disulfide. 

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