Ammonium alum (NH₄Al(SO₄)₂·12H₂O) is a white crystalline double sulfate of aluminium, used in water purification, in vegetable glues, in porcelain cements, in natural deodorants and in tanning, dyeing and in fireproofing textiles.^[1] Fumes from hydrochloric acid and ammonia forming a white cloud of ammonium chloride Ammonium is also an old name for the Siwa oasis in western Egypt. ... A crystal of Alum Alum, in chemistry, is a term given to the crystallized double sulfates of the typical formula M+2SO4·M3+2(SO4)3·24H2O, where M+ is the sign of an alkali metal (lithium, sodium, potassium, rubidium, or caesium), and M3+ denotes one of the trivalent metal... Stick deodorant Roll-on deodorant Deodorants are cosmetic substances applied to the body, most frequently the armpits, to reduce the body odor caused by the bacterial breakdown of perspiration. ...

As a crystal deodorant, it has a bacteriostatic action, meaning that it inhibits bacterial growth (but without killing the bacteria) and allows the elimination of toxins without clogging the pores in the skin.^[2] Since it does not kill the bacteria, it has somewhat shorter effectiveness when compared to other commercial antiperspirant or deodorants. Unlike the molecules of Aluminum chloride used in antiperspirants that are designed to lodge themselves in sweat glands, Ammonium alum molecules are much too large to be absorbed by the skin. The pH of the solution resulting from the topical application of ammonium alum with perspiration is typically in the slightly acid range, from 4 to 5.^[3] It is a popular deodorant because of its high availability and low cost. A 120 gram stone lasts for at least a year of daily usage - much longer than other deodorants and antiperspirants. It is also hypoallergenic and non-staining. Subgroups Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular: bacterium) are microscopic, unicellular organisms. ... A pore, in general, is some form of opening, usually very small. ... In zootomy and dermatology, skin is an organ of the integumentary system made up of multiple layers of epithelial tissues that guard underlying muscles and organs. ... Deodorants are cosmetic substances applied to the body, most frequently the armpits, to reduce the odor of perspiration. ... Overview Aluminium chloride (AlCl3) is a compound of aluminium and chlorine. ... Look up hypoallergenic in Wiktionary, the free dictionary. ...

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