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The form aluminum is in common use in mining, manufacturing, and the trade in the United States; the form aluminium is used with practical uniformity in Great Britain and generally by chemists in the United States." In 1909, Webster's is emphatically stating that Aluminum is a manufacturing and trade term, while aluminium is the chemistry term.
CONCENTRATE YOURSELVES ON IMPROVING THE ARTICLE, NOT DISCUSSING WHETHER WE SHOULD USE THE CORRECT (-IUM) OR INCORRECT (-UM) SPELLING! Admins- I think that this page should be shut down immediately. I'm American. I call it aluminum. I don't care if you use aluminium in the article. It's nice that the article notes there is a spelling difference.
Aluminium (or aluminum in North American English) is a chemical element; it has symbol Al and atomic number 13. Aluminium has a density lower than that of other common metals, about one-third that of steel. It has a great affinity towards oxygen, forming a protective layer of oxide on the surface when exposed to air.
Alum in the form of potassium aluminium sulphate or ammonium aluminium sulfate in a concentrated bath of hot water is regularly used by jewelers and machinists to dissolve hardened steel drill bits that have broken off in items made of aluminum, copper, brass, gold (any karat), silver (both sterling and fine) and stainless steel. This is ...
The introduction of these methods for the mass production of aluminium led to extensive use of the light, corrosion-resistant metal in industry and everyday life. Aluminium began to be used in engineering and construction. In World Wars I and II, aluminium was a crucial strategic resource for aviation.
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The most recent is the use of ion-exchange resin. [18] Achievable extraction efficiencies critically depend on the original concentration in the feed bauxite. At a typical feed concentration of 50 ppm, about 15 percent of the contained gallium is extractable. [18] The remainder reports to the red mud and aluminium hydroxide streams. [19]
Because of the calendar, Social Security recipients who get Supplemental Security Income benefits get their first 2025 check on Dec. 31, 2024.