Zirconium disulfide

ZrSe [12166-53-9] and ZrTe [39294-10-5] (138). Zirconium disulfide [12039-15-5] is made from the elemental powders and by the action of carbon disulfide on zirconium oxide above 1200°C (139) some ZrOS [12164-95-3] is usually also obtained. The higher sulfides disproportionate at ca 700°C synthesis reactions at 900—1000°C with S Zr ratios between 0.2 and 2.3 produced crystals that were identified as Zr S2 [12595-12-9] ... 

Several compounds such as BaZrS [12026-44-7], SrZrS [12143-75-8], and CaZrS [59087-48-8], have been made by reacting carbon disulfide with the corresponding zirconate at high temperature (141), whereas PbZrS [12510-11-1] was produced from the elements zirconium and sulfur plus lead sulfide sealed in a platinum capsule which was then pressurized and heated (142). Lithium zirconium disulfide [55964-34-6], LiZrS2, was also synthesized. Zirconium disulfide forms organometaUic intercalations with a series of low ionization (<6.2 eV)-sandwich compounds with parallel rings (143). 

Zirconium monochloride reacts with sodium ethoxide to form additional adducts which hydrolyze in water. The monochloride does not react with benzene in a Friedel-Crafts reaction, and does not enter into intercalation reactions similar to those of zirconium disulfide. Both monohaUdes add hydrogen reversibly up to a limiting composition of ZrXH (131). 

Tiibutsch H (1981) Photoelectrochemistry of layer-type zirconium disulfide. J Electrochem Soc128 1261-1269... 

ZnSe ZINC SELENIDE 1847 ZrS2 ZIRCONIUM DISULFIDE 1884... 

Iodoform Iodomethane Iron disulfide Isothiourea Ketones Lactonitrile Lead Acetone, lithium, mercury(II) oxide, mercury(I) chloride, silver nitrate Silver chlorite, sodium Water, powdered pyrites Acrylaldehyde, hydrogen peroxide, nitric acid Aldehydes, nitric acid, perchloric acid Oxidizing materials Ammonium nitrate, chlorine trifluoride, hydrogen peroxide, sodium azide and carbide, zirconium, oxidants... 

Gennamiun(II) sulfide, 4419 Goldail) sulfide, 0116 Iron disulfide, 4401 lron(ll) sulfide, 4400 lron(lll) sulfide, 4404 Manganese(ll) sulfide, 4706 Manganese(lV) sulfide, 4707 Merciuy(ll) sulfide, 4607 Molybdemun(lV) sulfide, 4719 Potassium sulfide, 4670 Rhenium(Vll) sulfide, 4891 Ruthenimn(lV) sulfide, 4895 Samarium sulfide, 4899 Silver sulfide, 0026 Sodimn disulfide, 4812 Sodimn polysulfide, 4813 Sodimn sulfide, 4811 Strontimn sulfide, 4901 Tantalum(lV) sulfide, 4903 Tetrakis(butylthio)uranimn, 3731 Thorium oxide sulfide, 4826 Tin(II) sulfide, 4900 Tin(IV) sulfide, 4902 Titaniiun(IV) sulfide, 4904 Uranium(IV) sulfide, 4905 Zirconium oxide sulfide, 4827... 

A-4-thiazoline-2-one, 402 thiazolyl-2-disulfides, 412 thiazolyl-2-thioethers, 405 Zirconium complexes, 156-161... 

Typical fillers calcium carbonate, barium sulfate, talc, kaohn, mica, quartz, sand, glass spheres, silica, titanium dioxide, aluminum hydroxide, carbon fiber, glass fiber, aramid fiber, aluminum, copper, silver, iron, graphite, molybdenum disulfide, zirconium silicate, hthium aluminum silicate, vermiculite, slate powder, titanium boride, ground rubber, iron oxide, microvoids... 

The solvents most frequently mentioned as dissolving the metal acetylacetonates are benzene, ethanol, chloroform, carbon tetrachloride, carbon disulfide, and petroleum ether. Since the solubility in petroleum ether is much less than in benzene, the former is frequently added to a saturated solution in the latter to effect crystallization. Hatch and Sutherland13 give data on the solubilities of sodium, potassium, magnesium, beryllium, and aluminum acetylacetonates in benzene, cyclohexane, and n-hexane from 0 to 100°. Other solubility measurements are as follows copper(II) acetylacetonate, 0.00338 mol/1. in benzene at 25° 57 zirconium acetylacetonate, 200, 34, 47, and 56 g./l. in absolute ethanol, carbon disulfide, carbon tetrachloride, and acetylacetone, respectively, at 25°.4 Recent data by Blanch58 are assembled in the following table. 

The chemistry of zirconium and hafnium amides has been investigated further 101) using the general reactions of (1) metal amide with excess protic compound, (2) metal amide with a stoichiometric amount of protic compound, and (3) the reaction of a metal chloride with lithium dimethyl amide. The comyiounds jirepared are listed in Table V. They are all monomeric. Hafnium amides have not been described before, although there is a reference by Bradley (7fl) to the reaction of hafnium amide with carbon disulfide and metal carbonyls. 

Very few sulfur-bonded zirconium or hafnium compounds have been reported. Bradley (71) in attempting to dissolve dialkylamine compounds, M(NR2)x> where M = Zr or Hf, and R = methyl, ethyl, or w-propyl, in carbon disulfide, found that a vigorous reaction occurred with formation of A, A -dialkylthiocarbamates, M(S2CNR2)4. The dimethyl derivatives are very insoluble and nonvolatile, suggesting that they might be polymeric, but the higher alkyl derivatives are soluble and monomeric. The ligand appears to be bidentate. 

Determination of total fluoride emissions from stationary sources—SPADNS zirconium lake method Determination of total fluoride emissions from stationary sources—specific ion electrode method Determination of fluoride emissions from potroom roof monitors for primary aluminum plants Determination of total fluoride emissions from selected sources at primary aluminum production facflities Determination of hydrogen sulfide, carbonyl sulfide, and carbon disulfide emissions from stationary sources Determination of total reduced sulfur emissions from sulfur recovery plants in petroleum refineries Semicontinuous determination of sulfur emissions from stationary sources Determination of total reduced sulfur emissions from stationary sources (impinger technique)... 

A large number of inorganic layer crystals such as micas, sodium silicates, niobate, uranate, vanadate, titanate, zirconium phosphate, graphitic acids, crystalline silicic acids, vanadium oxyhydrate, calcium phosphoric acid esters, and titanium disulfide develop alkyl crystals between their rigid crystal layers by ion exchange with, for example, alkyl ammonium salts and by intercalation inorganic... 

Zirconium acetylacetonate 10-hydrate effloresces in air and may be completely dehydrated in a vacuum of 0.1 mm. The anhydrous salt sublimes slowly with some decomposition in vacuo at about 140° and melts at 194.5 to 195° with decomposition. The acetylacetonate reacts with alcohol. Its solubility at 25° per liter in other organic solvents is as follows carbon disulfide, 30 g. carbon tetrachloride, 47 g. acetylacetone, 56 g. ethylene dibromide, 44 g. benzene, approximately 200 g. Both the hydrate and the anhydrous compound give a red color with carbon disulfide on standing. This is also true of hafnium acetylacetonate but not of the thorium compound. 

Disulfatozirconic acid. See Zirconium sulfate Disulfide, bis (dibenzylthiocarbamoyl). See N,N,N, N -Tetrabenzylthiuram disulfide... 

Acrylates/VA copolymer Adipic acid Albumen Alkyl phenol disulfide Ami noethyl piperazine Ammonium lignosulfonate Ammonium perchlorate Ammonium polyacrylate Ammonium thiocyanate Ammonium zirconium carbonate Beeswax Benzidine dihydrochloride N-Benzyldimethylamine Boron trifluoride 1,3-Butanediol dimethacrylate Butyl acetoxystearate Butyl lactate t-Butyl methacrylate Calcium naphthenate p-Carboxyethyi acryiate... 

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