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ALUM

ălˈəm, any one of a series of isomorphous double salts that are hydrated sulfates of a univalent cation (e.g., potassium, sodium, ammonium, cesium, or thallium) and a trivalent cation (e.g., aluminum, chromium, iron, manganese, cobalt, or titanium). The name alum commonly refers to potassium aluminum sulfate dodecahydrate, or potash alum, KAl(SO₄)₂·12H₂O, a colorless-to-white, crystalline compound. It is used in water purification, leather tanning, mordant dyeing, as an astringent, and in baking powder; it occurs in nature as the mineral kalunite. Sodium aluminum sulfate, or soda alum, NaAl(SO₄)₂·12H₂O, is also used in baking powder. Ammonium aluminum sulfate, or ammonia alum, NH₄Al(SO₄)₂·12H₂O, is used in tanning, in dyeing and fireproofing textiles, in vegetable glues and porcelain cements, and in water purification. Chromium potassium sulfate, or chrome alum, KCr(SO₄)₂·12H₂O, is used as a mordant in dyeing, in tanning, and in photographic fixing baths to harden gelatin films and plates. Aluminum sulfate, Al₂(SO₄)₃·18H₂O, is also called alum. A pseudoalum is a double sulfate salt of a divalent cation (e.g., magnesium or calcium) and a trivalent cation (e.g., aluminum).

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Questia Books and Articles on: Alum

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4201 results

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1635

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210

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505

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1839

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12

books on: Alum - 1635 results

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European and Islamic Trade in the Early Ottoman State: The Merchants of Genoa and Turkey
Book by Kate Fleet; Cambridge University Press, 1999
Subjects:	Europe--Commerce--Islamic Countries, Islamic Countries--Commerce--Europe, Turkey--History--Ottoman Empire, 1288-1918
...compounded by the fact that alums from different regions...considerable increase in alum prices in the eastern...243 4. In a list of alum values in Bruges the various alums are said to be 2 soldi...price is given. The alums listed are Cyzicus alum, Ulubat alum, second...

Medieval Trade in the Mediterranean World: Illustrative Documents
Book by Robert S. Lopez, Irving W. Raymond; Columbia University Press, 1955
Subjects:	Commerce--History
alum--for cord and pit mean the...Genoa of it every year. Cyzican alum comes from and is manufactured...for anything else. And many alums are named Cyzican because they...of it every year. Diaschilo alum and cord alum--that is...

Wandering Significance: An Essay on Conceptual Behavior
Book by Mark Wilson; Oxford University Press, 2006
Subjects:	Concepts, Philosophy Of Mind, Psycholinguistics, Thought And Thinking
...large and will actually resemble those of alum (potassium aluminum sulphate) and thus...need to recognize that he did not apply alum and similar words as we might. In particular...not recognized as the same stuff as his alum and that he did not actually regain all...

Economic and Social History of Europe in the Later Middle Ages (1300-1530)
Book by James Westfall Thompson; Century, 1931
Subjects:	Europe--Economic Conditions, Europe--Social Conditions, Middle Ages--History
...items of Florentine trade with the East. Alum was so necessary to the dyeing industry...necessary. Until the fifteenth century, when alum was first discovered in Europe, the Italian...absolutely dependent upon importation of alum from other lands, and all these were in...

Madder Red: A History of Luxury and Trade : Plant Dyes and Pigments in World Commerce and Art
Book by Robert Chenciner; Curzon, 2000
Subjects:	Dye Industry--History, Madder, Madder--History
of clay. Alum is a kind of corrosive substance which if...on the Indus in India, the presence of alum mordant in cotton fabrics of about 2000...Durer (Leix, CIBA Review) manual mentions alum as a mordant. 95 In Egypt where alum was...

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journal articles on: Alum - 210 results

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A Novel Technology to Improve Drinking Water Quality Using Natural Treatment Methods in Rural Tanzania
Journal article by Shaaban Aman Mbogo; Journal of Environmental Health, Vol. 70, 2008
Subjects:	Alum--Comparative analysis, Coagulants (Materials)--Usage, Drinking water--Chemical properties, Water quality management--Methods, Water treatment--Methods, Water--Methods, Water--Purification
...relies on the addition of chemicals such as alum (aluminium sulfate) as coagulants and...percent natural coagulant + 20 percent alum); residual turbidity of clarified water...WHO standards for drinking water. When alum (Al.sub.2SO.sub.4) was used...

Rethinking the Cuban Adjustment Act and the U.S. National Interest
Journal article by Joyce A. Hughes, Alexander L. Alum; St. Thomas Law Review, Vol. 23, 2011
Subjects:	Aliens--Laws, regulations and rules, Asylum, Right of--Laws, regulations and rules, Cuban Refugee Adjustment Act of 1966, National security--Laws, regulations and rules, Refugees--Laws, regulations and rules, Right of asylum--Laws, regulations and rules
...S. National Interest. by Joyce A. Hughes , Alexander L. Alum I. Introduction / II. Fidel Castros Rise to Power and Cubas...interest of the United States. JOYCE A. HUGHES (1) ALEXANDER L. ALUM (2) (1.) Professor of Law, Northwestern University School...

Adena Mortuary Patterns in Central Ohio
Journal article by Christopher T. Hays; Southeastern Archaeology, Vol. 29, 2010
Subjects:	Construction contracts, Creeks & streams, Investigations, Ohio Valley
...of the region, which I refer to as the Alum Lake area, are the Bagley, James, La Moreaux, White, and Alum Creek mounds, and the Bagley and Pierce...of Dr. Raymond Baby. The sites in the Alum Lake area were investigated in 1969 and...

Glaucony from the Eocene of the Isle of Wight (Southern Uk): Implications for Basin Analysis and Sequence-stratigraphic Interpretation
Journal article by Alessandro Amorosi, Maria Carla Centineo; Journal of the Geological Society, Vol. 154, 1997
Subjects:	Geology, Isle of Wight, Mineralogy, United Kingdom
...two major locations (Whitecliff Bay and Alum Bay), 30 km apart (Fig. 1). These...Bartonian deposits at Whitecliff Bay and Alum Bay (Fig. 1), in order to document...from Whitecliff Bay and 9 samples from Alum Bay). In order to characterize fully...

Construction of a Palaeogene Tide-dominated Shelf: Influence of Top Chalk Topography and Sediment Supply (Wessex Basin, Uk)
Journal article by Andrew J. Newell; Journal of the Geological Society, Vol. 158, 2001
Subjects:	Cartography, Geology, Plate tectonics, Prehistoric era, Sediments
...located at Whitecliff Bay SZ 639 860 and Alum Bay SZ 305 854 on the IOW with borehole...London Clay between Whitecliff Bay and Alum Bay (Fig. 9). This interpretation is...interval of the Wittering Formation as used at Alum Bay (unit 3) is correlated with the previously...

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magazine articles on: Alum - 505 results

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Honored Alum
Magazine article; Islamic Horizons, Vol. 37, May/Jun 2008
Subjects:	Alumni, Awards & honors, College professors, Ghazanfar, Shaikh M, Pullman Washington, Washington State University
Honored Alum* Washington State University recognized Or. Shaikh M. Ghazanfars professional achievements with its highest honor: the Distinguished...*

Kyle Sonnenberg: MPA Alum Returns to Delaware as Newark City Manager
Magazine article by Mark Deshon; Public Management, Vol. 91, December 2009
Subjects:	City managers--Practice, Local government--Appreciation, Local government--Delaware, Newark, Delaware, Sonnenberg, Kyle--Practice
Kyle Sonnenberg: MPA Alum* Returns to Delaware as Newark City Manager. by Mark Deshon When the Newark, Delaware, city manager retired from his position...*

Southern University Alum Claims Coaching Honors on Way to Playoffs
Magazine article by Frank J. Matthews; Diverse Issues in Higher Education, Vol. 23, June 15, 2006
Subjects:	Athletes, Awards & honors, Coaches & managers, Professional basketball
Southern University Alum* Claims Coaching Honors on Way to Playoffs by Frank J. Matthews A very Johnson, who played his final two collegiate seasons at...*

Potty Mouth: Seinfeld Alum Julia Louis-Dreyfus Loves Bad Words and Gay Marriage
Magazine article by Brandon Voss; The Advocate, November 4, 2008
Subjects:	Actors--Interviews, Actresses--Interviews, Louis-Dreyfus, Julia--Interviews
Potty Mouth: Seinfeld Alum* Julia Louis-Dreyfus Loves Bad Words and Gay Marriage. by Brandon Voss THE FOURTH SEASON of the CBS sitcom The New Adventures...*

Rider of the Storm: As Reality TV Alum Jim Morrison Takes Stab at Public Office, a Contest He Won in a New York City Gay Bar Becomes an Issue in the Campaign
Magazine article by Dan Allen; The Advocate, September 2, 2003
Rider of the Storm: As Reality TV Alum* Jim Morrison Takes Stab at Public Office, a Contest He Won in a New York City Gay Bar Becomes an Issue in the Campaign. by Dan...*

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newspaper articles on: Alum - 1839 results

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Bartlett Alum Paladino Making an Impact at Harper
Newspaper article by Mike Miazga; Daily Herald (Arlington Heights, IL), September 29, 2006
Subjects:	College football, Football (College), Football teams
...Central: Burlington Central alum Bobbie Lamothe is now a member...Also at Stevens Point, Huntley alum Brad Kalsow has caught 6 passes...Conference action. Cary-Grove alums honored: A pair of Cary-Grove...Also, fellow Cary-Grove alum Jessica Wise received the performer...

Wave Alum Eby Reaps Football Award
Newspaper article by Mike Miazga; Daily Herald (Arlington Heights, IL), January 27, 2006
Wave Alum Eby Reaps Football Award. by Mike Miazga...up some football hardware. Eby, a 2004 alum of the Perry Street school in Elgin, was...in the country. Pucci at Loras: Jacobs alum Natalie Pucci is the leading scorer on the...

Larkin Alum Allison Earns Another Player of Week Award
Newspaper article by Mike Miazga; Daily Herald (Arlington Heights, IL), February 25, 2005
Subjects:	Northern Illinois University
Larkin Alum Allison Earns Another Player of Week Award...start the week. Sikora at Augustana: Elgin alum Kelly Sikora is now a sophomore forward for...start the week. Mohney at Elmhurst: Huntley alum Andrew Mohney is a 6-7 junior center on...

D-C Alum Rynders Earns Volleyball Honor at Beloit
Newspaper article by Mike Miazga; Daily Herald (Arlington Heights, IL), October 13, 2006
...loss to Michigan. Cary-Grove alum Cassie McLaughlin had 5 kills...Mills at Bowling Green: Larkin alum Corrie Mills is part of a Bowling...volleyball: A pair of local alums are members of the Murray State...Shepherd at Penn: Jacobs alum Sam Shepherd saw action in Penns...

Jacobs Alum Zimka Helps NIU Soccer to National Ranking
Newspaper article by Mike Miazga; Daily Herald (Arlington Heights, IL), October 20, 2006
Subjects:	Northern Illinois University, Soccer
Jacobs Alum Zimka Helps NIU Soccer to National Ranking...Miazga Daily Herald Correspondent Jacobs alum Joe Zimka has played a major role in the...midfielder Jose Alvarado, a Burlington Central alum. Alvarado is a two-time all-conference...

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encyclopedia articles on: Alum - 12 results

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Alum
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
ALUM al m, any one of a series of isomorphous double...iron, manganese, cobalt, or titanium). The name alum commonly refers to potassium aluminum sulfate dodecahydrate, or potash alum, KAl(SO 4 ) 2 12H 2 O, a colorless-to-white...

Potassium
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...12H 2 O, is a compound used in tanning, in water purification, and in baking powder; usually called alum , it is also called potash alum to distinguish it from other alkali aluminum sulfates. Potassium permanganate, KMnO 4 , a purple-black...

Mordant
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...acidic or basic. Acid mordants (e.g., tannic acid) are employed with basic dyes; basic mordants (e.g., alum, chrome alum, and certain salts of aluminum, chromium, copper, iron, potassium, and tin) are employed with acid dyes...

Aluminum
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...many minerals, including clay, bauxite , mica, feldspar, alum, cryolite , and the several forms of aluminum oxide (alumina...various aluminum compounds as astringents; they called these alum. Sir Humphry Davy and other chemists in the early 19th cent...

Cornflower
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...long-stemmed blue heads of the flowers, having radiating bottle- or vase-shaped florets, yield a juice which, mixed with alum, has been used as a dye. Cornflowers are classified in the division Magnoliophyta , class Magnoliopsida, order Asterales...

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