Aluminium sulfate hydrates

When the poisoned catalysts are subjected to heat (c.g 773 K) in air, MS will change into S(VI) or S(IV) (or S02)t but the original S(VI) in the catalysts is essentially unchanged (Fig.4) As the temperature rises to ca 973 K, the decomposition of aluminium sulfate hydrate will lake place. When poisoned catalysts undergo a temperature programmed... 

Allylpropenoate) see Allyl acrylate Aluminium potassium sulfate dodecahydrate Aluminium sulfate hydrate... 

Aluminium potassium sulfate dodecahydrate Aluminium sulfate hydrate <30% aq. sol n Ammonium acetate sat d aq. sol n Ammonium bicarbonate Ammonium carbonate sat d aq sol n Ammonium chloride sat d aq. sol n Ammonium fluoride 30-70% aq. sol n Ammonium hydrogen fluoride Ammonium nitrate Arsenic trichloride Cadmium oxide solid Calcium chloride 30-70% sat d aq. sol n Cobalt sulfate heptahydrate... 

Govindarajan, S. and Patil, K.C. (1982) Thermal decomposition of hydrazinium aluminium sulfate hydrate and hydrazinate. Thermochimica Acta, 55, 373-376. 

Aluminium fluoride (anhydrous) [7784-18-4] M 84.0, m 250°. Technical material may contain up to 15% alumina, with minor impurities such as aluminium sulfate, cryolite, silica and iron oxide. Reagent grade AIF3 (hydrated) contains only traces of impurities but its water content is very variable (may be up to 40%). It can be dried by calcining at 600-800° in a stream of dry air (some hydrolysis occurs), followed by vacuum distn at low pressure in a graphite system, heated to approximately 925° (condenser at 900°) [Henry and Dreisbach J Am Chem Soc 81 5274 1959]. 

The production of a baking powder depended on a system where the reaction could be delayed until required. In 1864 a patent was taken out to use monocalcium phosphate hydrate in making a baking powder. In 1885 sodium aluminium sulfate came to be used. This compound has a low solubility in water at ambient temperatures so it does not start to act until the product has heated up. 

Composition given by the Colour Index (1971 Cl 77235/Pigment White 33) as 3Ca0.Al203.3CaS04.31H20 (calcium aluminium oxide sulfate hydrate). 

Tertiary and quaternary oxides (Al + Co, Sn Cu, Fe) chromium aluminium cobalt oxide chromium iron oxide ((Fe,Cr)203) chromium copper iron oxide (Cu0.Cr203.Fc203). Phosphates chromium phosphate hydrate (CrP04jcH20). Sulfates chromium sulfate (Cr2[S04]3) chromiimi sulfate hydrate (Cr2[S04]3.15H20 and Cr2[S04]3.18H20). 

Patton (1973i) equates lake white with light alumina hydrate. This latter term refers to a basic aluminium sulfate prepared as a precipitate from solutions of aluminium sulfate and sodium... 

Sulfuric acid, Toluenesulfonic acid, Phosphonic acid. Hydrochloric acid. Ferric sulfate hydrate. Methyl thiosulphate, Hydroiodic acid. Aluminium trichloride, Niobic acid Alkyl benzene sulfonic acid... 

Like most metals, aluminium, in contrast to the non-metal boron, forms an aqueous cation. Hydrates of aluminium sulfate, Al2(S04)3, for example, can be made by dissolving bauxite in sulfuric acid and evaporating the solution. When such sulfates are dissolved in water, AP+(aq) is formed ... 

Aluminium-hydrat, n. aluminum hydroxide, -iodat, n. aluminum iodate.. -jodid, n. aluminum iodide, -kaliumsulfat, n. aluminum potassium sulfate, -leglerung,/. aluminum alloy, -messing, n. aluminum brass, -oxydhydrat, n. aluminum hydroxide, -pul-ver, n. aluminum powder, -rhodanid, n. aluminum thiocyanate, -rohr, n., -rbhre, /. 

Urokinase utilized medically is generally purified directly from human urine. It binds to a range of adsorbents, such as silica gel and, especially, kaolin (hydrated aluminium silicate), which can be used initially to concentrate and partially purify the product. It may also be concentrated and partially purified by precipitation using sodium chloride, ammonium sulfate or ethanol as precipi-tants. 

Pechiney H+ A process for extracting aluminum from clays and other aluminous ores and wastes by hydrochloric acid. The ore is first attacked by sulfuric acid and a hydrated aluminum chloride sulfate is isolated. Sparging a solution of this with hydrogen chloride precipitates aluminum trichloride hexahydrate, which is pyrohydrolyzed in two stages. Invented in 1977 by J. Cohen and A. Adjemian at Aluminium Pechiney, France, and subsequently developed in association with Alcan. Piloted in France but not yet commercialized. 

Arsenic, barium, benzene, carbon tetrachloride, chromium, 1,2-dichloroethane, dichloromethane, ethylbenzene, toluene, trichloroethene Aluminium, antimony, arsenic, barium, boron, cadmium, chloral hydrate, chromium, copper, dichloroacetate, iron, mercury, zinc Ammonia, sulfate... 

Mayer s hemalum 1 g of hematoxylin, 50 g of aluminium potassium sulfate, 0.2 g of sodium iodate, 1 g of citric acid, 50 g of chloral hydrate, and 1 L distilled water. Dissolve the hematoxylin in distilled water, using gentle heat if necessary. Add the alum, heat if necessary. Add the sodium iodate, mix well and leave overnight. Then add citric acid, mix well and add the chloral hydrate. 

---