alum


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alum

 [al´um]
a local astringent and styptic, prepared as an ammonium (ammonium a.) or potassium (potassium a.) compound; also used as an adjuvant in adsorbed vaccines and toxoids.

al·um

(al'ŭm),
A double sulfate of aluminum and of an alkaline earth element or ammonium; chemically, an alum is any one of the markedly astringent double salts formed by a combination of a sulfate of aluminum, iron, manganese, chromium, or gallium with a sulfate of lithium, sodium, potassium, ammonium, cesium, or rubidium; used locally as a styptic.
[L. alumen]

alum

(ăl′əm)
n.
Any of various double sulfates of a trivalent metal such as aluminum, chromium, or iron and a univalent metal such as potassium or sodium, especially hydrous aluminum potassium sulfate, AlK(SO4)2·12H2O, widely used in industry as clarifiers, hardeners, and purifiers and medicinally as topical astringents and styptics.

al·um

(al'ŭm)
Agent used locally as a styptic.
[L. alumen]
References in periodicals archive ?
Aftab Chughtai is the owner of babywear and accessories shop Aftabs in Alum Rock Road.
"He draws yearly from the Christians above three hundred thousand gold pieces for the alum with which we dye our wool....I have, however, found seven hills so stocked with alum as to be nigh sufficient for seven worlds.
According to Avalos, an Argentine court granted her full custody of Alum after she and Langone separated in 2011.
Erik Berglof, director of the LSE Institute of Global Affairs, talked about the concept behind ALUM as well as a new collaborative partnership called Universities Without Borders.
Authorities earlier indicated that the quantity of the recovered alum seemed to back rumors that some of the relieved DAID policemen might be involved in drug recycling, substituting the tawas for the drugs seized in legitimate operations.
Let it sit for a minute or two, and then add 20 drops of food coloring and a rounded 1/3 cup of alum powder.
I can assure you this is well worth your efforts and will quickly pay dividends (and could be a good volunteer opportunity for an active and interested alum).
In reply to a question, she said water for human consumption must be filtered, in case the required domestic gadget is not available then it must be boiled for at least 10 minutes and once it cools down should be sieved and subjected to alum treatment till all dirt or impurities settle down.
Tony Garcia, UO Law School alum, JAG Corp with National Guard
The same coagulants and its blended form were used for TSS removal and results are 278 to 7 mg/L, in blended form Alcl3+Alum show similar results but Alum + Fecl3 showed excellent results.
Earlier studies showed that adding alum to poultry litter, swine manure, and other agricultural byproducts substantially mitigates phosphorus release.