Aluminum zinc sulfide

Zinc sulfide, ZnS, sphalerite (zinc blende) zinc sulfide, ZnS, wurtzite zinc selenide, ZnSe zinc telluride, ZnTe, cubic zinc telluride, ZnTe, hexagonal zinc polonide, ZnPo zinc aluminum selenide, ZnAl2Se4 zinc indium selenide, ZnIn2Se4 zinc indium telluride, Znhi2Te4. 

Sillimanite, see Aluminum silicon oxide (1/1) Smithsonite, see Zinc carbonate Soda ash, see Sodium carbonate Spelter, see Zinc metal Sphalerite, see Zinc sulfide Spherocobaltite, see Cobalt(II) carbonate Spinel, see Magnesium aluminate(2—)... 

D.ll Write formulas for the ionic compounds formed from (a) sodium and oxide ions (b) potassium and sulfate ions (c) silver and fluoride ions (d) zinc and nitrate ions (e) aluminum and sulfide ions. 

X-ray Diffraction Analysis. The inorganic components of paper are the most suitable ones for quantitative X-ray diffraction analysis. Most of these compounds are minerals and are present as fillers, coatings and pigments (often whiteners) which are added to improve the properties of the paper. Examples of compounds commonly added to paper are alumina, aluminum silicate, barium sulfate, calcium carbonate, calcium sulfate, calcium sul-foaluminate, iron oxide, magnesium silicate, silica, titanium dioxide, zinc oxide, and zinc sulfide (28). Some of these, e.g., calcium carbonate and titanium dioxide, may be present in any of... 

In some instances, an ore is treated to change its chemical state before being reduced. The most common ores of zinc, for example, are the sulfides. These compounds are first roasted in an excess of air, converting zinc sulfide to zinc oxide. The zinc oxide is then reduced either by reacting it with coke (as in the case of iron) or by electrolyzing it (as in the case of aluminum). 

IODINE CHLORIDE (7790-99-0) Decomposes explosively below 207°F/97°C. Decomposes on contact with water, steam, alcohols. Reacts violently, causes ignition, or explodes on contact with organic matter, finely divided or foil aluminum or other metals, cadmium sulfide, lead sulfide, organic substances, potassium, phosphorus, phosphorus trichloride, rubber, silver sulfide, sodium, sulfur, zinc sulfide. 

The reaction occurs merely on heating, for instance with 2-mercaptoanthra-quinones,629 but better in the presence of substances that bind hydrogen sulfide a mixed catalyst composed of cadmium sulfide, zinc sulfide, and aluminum oxide has been used.630... 

Adding ammonium chloride decreases the solubility of aluminum hydroxide and prevents the precipitation of magnesium hydroxide. Scott 13) states that the precipitation of nickel, cobalt, manganese, and zinc sulfides may be incomplete because of the formation of polysulfides in the presence of air or other oxidizing agents. A small amount of ammonium sulfite is therefore added to promote their precipitation. In spite of this precaution, cobalt, nickel, and manganese were never quantitatively recovered and the procedure is not considered entirely satisfactory for these elements. 

Solid metal sulfates show, in general, various acid strengths (see Figs. 1 and 2). They have many acid centers of moderate acid strength, compared with silica-alumina, aluminum chloride, etc., which have high acid strength, and with titanium oxide and zinc sulfide whose acid strengths are low. 

This causes the hydro complex to change into a soluble ammonia complex, the tetramminezincate(II) ion. If the observations in step one and two were caused by Be + or Al, adding ammonium chloride would cause it to reprecipitate as hydroxides due to a lowering of the OH concentrahon (see 3.4. Aluminum). The last step is to add 0.1 ml sodium sulfide solution R, which causes the formation of a white flocculent precipitate of zinc sulfide. 

Inorganic colorants listed in 21CFR 178.3297 include aluminum, aluminum hydrate, potassium silicate, aluminum silicate, barium sulfate, bentonite, calcium carbonate, calcium silicate, calcium sulfate, carbon black (channel process, prepared by the impingement process from stripped natural gas), chromium oxide green Cr203, cobalt aluminate (with restrictions), diatomaceous earth, iron oxides, kaolin (modified for use in olefin polymers in amounts up to 40%), magnesium oxides, magnesium silicate (talc), sienna, silica, titanium dioxide, titanium dioxide-barium sulfate, ultramarines, zinc carbonate (limited use), zinc chromate (less than 10%), zinc oxide (limited use), and zinc sulfide (less than 10%). 

Aluminum hydroxide Aluminum silicate Asbestos Barium sulfate Carbon black Cotton (Gossypium herbaceum) Mica Titanium dioxide Zinc carbonate Zinc sulfide filler, rubber prods. 

Tetrakis (2-chloroethyl) ethylene diphosphate flame retardant, paper Aluminum hydroxide Ammonium bromide Ammonium phosphate, dibasic Ammonium polyphosphate Antimony trioxide Barium metaborate Bis (P-chloroethyl) vinyl phosphonate Boric acid Dimelamine phosphate Melamine phosphate Paraffin, chlorinated Perchloropentacyclodecane Zinc sulfide flame retardant, PBT... 

In mineralogy, the technique of separating particles of minerals from water media are of great interest. In only rare cases does one find minerals or metals in pure form (such as gold). The earth surface consists of a variety of minerals (major components are iron-silica-oxides-calcium-magnesium-aluminum-chromium-cobalt-titanium). Minerals as found in nature are always mixed with different kinds (e.g., zinc sulfide and felspar minerals). In order to separate zinc sulfide, one suspends the mixture in water and air bubbles are made to achieve separation. This process is caWeAflotation (ore [heavier than water] is floated by bubbles). 

In 1874 the Erench chemist Paul-Emile Lecoq de Boisbaudran found two previously unidentified lines in the atomic spectrum of a sample of sphalerite (a zinc sulfide, ZnS, mineral). Realizing he was on the verge of a discovery, Lecoq de Boisbaudran quickly prepared a large batch of the zinc mineral, from which he isolated a gram of a new element. He called this new element gallium. The properties of gallium were remarkably close to those Mendeleev predicted for eka-aluminum. 

Aluminum hydroxide Barium carbonate Barium fluoride Barium sulfate Bismuth sulfide Cadmium sulfide Calcium carbonate Calcium fluoride Calcium hydroxide Calcium phosphate Chromium(III) hydroxide Cobah(U) sulfide Copper(I) bromide Copper(I) iodide CopperfU) hydroxide Copper(II) sulfide Iron(II) hydroxide Iron(III) hydroxide Iron(II) sulfide Lead(II) carbonate Lead(II) chloride Leadfll) chromate Lead(II) fluoride Lead(II) iodide Lead (II) sulfide Magnesium carbonate Magnesium hydroxide Manganese(II) sulfide Mercury(l) chloride Mercury(U) sulfide Nickel(II) sulfide Silver bromide Silver carbonate Silver chloride Silver iodide Silver sulfide Strontium carbonate Strontium sulfate Tin(II) sulfide Zinc hydroxide Zinc sulfide... 

UTHOPONE. A mixture of zinc sulfide, barium sulfate and some zinc oxide. Solid lithopone caused mild attack ( 1 mpy) of 3003 and 5154 alloys in laboratory tests conducted under conditions of 100% relative humidity at ambient temperature. Aluminum alloys have been used for pipe lines and driers in the manufacture of lithopone. See also Ref (1) p. 135. (2) p. 433. (3) p. 238, (7) p. 115. 

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