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Crystal of potassium alum, KAl(SO 4) 2 ·12H 2 O. An alum (/ ˈ æ l ə m /) is a type of chemical compound, usually a hydrated double sulfate salt of aluminium with the general formula X Al(SO 4) 2 ·12 H 2 O, such that X is a monovalent cation such as potassium or ammonium. [1] By itself, "alum" often refers to potassium alum, with the ...
The English name alum does not come directly from Latin, whereas alumine/alumina comes from the Latin word alumen (upon declension, alumen changes to alumin-). One example was Essai sur la Nomenclature chimique (July 1811), written in French by a Swedish chemist, Jöns Jacob Berzelius , in which the name aluminium is given to the element that ...
After the Crusades, alum was a commodity of international commerce; [9] it was indispensable in the European fabric industry. [10] Small alum mines were worked in Catholic Europe but most alum came from the Middle East. [11]
Country Production in thousand tonnes Year World 70,000 2023 China 41,500: 2023 India 4,100: 2023 Russia 3,800: 2023 Canada 3,000: 2023 United Arab Emirates 2,700: 2023 Bahrain
Aluminium sulfate is sometimes called alum or papermaker's alum in certain industries. However, the name " alum " is more commonly and properly used for any double sulfate salt with the generic formula X Al(SO 4 ) 2 ·12H 2 O , where X is a monovalent cation such as potassium or ammonium .
Aluminum can prices vary by region and are based on weight. The average recycling value per pound of cans in the U.S. is currently $0.56. How many aluminum cans are in a pound?
This foil is made with 100% recycled aluminum and has a much smaller carbon footprint than its brethren. It uses 90% less energy than developing a brand-new foil. It uses 90% less energy than ...
The Indian bauxite industry is interested in developing this land for aluminum production, which poses great risk to the terrestrial and aquatic ecosystems. Historically, the Indigenous peoples living on these lands have shown resistance to development, and oppose any new bauxite mining projects in the area.