Aluminium containers

There is a noticeable difference between the appearance of the aluminium-containing magnesium-rich alloys on the one hand and the zinc/zirconium-containing magnesium alloys on the other. In the former the microscopic pits in the surface which has been exposed to the weather tend to be narrow and relatively deep, while in the latter they are wider and tend to overlap, leading to a slightly wavy appearance. 

Silver, brass, aluminium, steel, copper, nickel can cause decomposition at elevated temperatures. Magnesium alloys and aluminium containing >2% magnesium. Natural rubber... 

With carbon dioxide in the solid state the mixture detonates on impact. Therefore, with graphite, carbon dioxide cannot be used as an extinguishing agent for potassium fires. The slow reaction of potassium with gaseous carbon dioxide at ambient temperature gave rise to an accident. Potassium was stored in an aluminium container in a laboratory in contact with carbon dioxide the formation of potassium carbonate caused the corrosion of the container, which caused potassium to combust on contact with air. 

V. R. Negomedzyanov, V. P. Bortsov, V. S. Denisov, V. V. Slepov, and S. S. Volkova. Plugging composition for use in oil and gas extraction industry—contains Portland cement and aluminium-containing additive in form of slag dust waste from aluminium production process. Patent RU 2029067-C, 1995. 

Konturek, S.J., Brzozowski, T., Majka, J., Szlachcic, A., Slo-miany, B. and Nauert, C. (1992a). Role of nitric oxide and prostag ndins in gastroprotection by aluminium containing antacid. Gastroenterology 102, AlOl. 

SCHEME 6. Enantioselective Diels-Alder reaction induced by a chiral aluminium-containing Lewis acid88... 

Preparation.—1. By decomposing dilate sulphuric acid by a feeble electric current passing from electrodes of aluminium containing silicon, vrhen the silicic hydride is erolred at the negative pole. 

In Fig. 2.18 we show MAS NMR spectra of solids with different NMR nuclei some of the other possible nuclei are Na, P, Fe, Cd and Sn. In Fig. 2.19, MAS NMR spectra of aluminium-containing materials are shown to indicate how octahedral and tetrahedral coordination of AI are readily distinguished. In Fig. 2.20, Si spectra of several zeolites are shown to point out how silicon atoms coordinated differently (by aluminium atoms) exhibit widely different chemical shifts the numbers above the peaks represent n in Si(nAl) with five possible values (0 to 4). Si, AI ordering... 

Aluminium-containing antacids exhibit cytoprotective activity or enhancement of natural mucosal defence mechanisms. 

Experiments have shown that the best construction material for the storage of hydrogen peroxide is high purity (99.6%) aluminium. Aluminium containers should be thoroughly cleaned to remove any traces of organic impurities, and washed first with a solution of caustic soda and then with water and 10% sulphuric acid, over a period of several hours. Finally the acid is washed out with distilled water, after which it is desirable to re-wash the container with hydrogen peroxide. Tanks and containers for hydrogen peroxide should be provided with safety valves, that are ruptured by the excessive pressure produced if the peroxide decomposes. 

The authors [48] numerical data are collected in Table 67. They are valuable indications of the safety measures which should be observed in the storage, transportation and handling of hydrazine. It can be contained in vessels of glass and stainless steel, but under no circumstances in those made of iron. Aluminium containers are also acceptable. 

For a same pore size of 35 A, an aluminium-containing MTS was found as stable as a pure siliceous MTS, as shown in Table 2. Aluminium does not seem to weaken the structure as suggested in literature [5]. 

Uranium Arsenide, U3As4, may be obtained i by passing hydrogen over a fused mixture of sodium uranous chloride and sodium arsenide. It is a greyish powder which readily burns in the air. Sometimes it is obtained in a pyrophoric condition. An aluminium-containing product results when the aluminothermic process, using an oxide of uranium and arsenious oxide, is employed. The purest arsenide is obtained, in the crystalline form, when a mixture of hydrogen and arsenic vapour is passed over sodium uranium chloride. It is rapidly decomposed by nitric acid. 

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