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Alum   /ˈæləm/  /əlˈəm/   Listen
Alum

noun
1.
A white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum.  Synonyms: ammonia alum, ammonium alum.
2.
A white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum.  Synonyms: potash alum, potassium alum.
3.
A person who has received a degree from a school (high school or college or university).  Synonyms: alumna, alumnus, grad, graduate.
4.
A double sulphate of aluminum and potassium that is used as an astringent (among other things).



Related searches:
aluminium
aluminum
ammonia alum
ammonium alum
chrome alum
potash alum
potassium alum


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"Alum" Quotes from Famous Books



... 2: Prepared as follows: Shake up powdered commercial alum with water at ordinary temperature until a saturated solution is obtained. Set aside a little of the solution, and to the residue add ammonia, little by little, stirring between additions, until the mixture is alkaline to litmus paper. Then drop in additions of the portion left aside, until ...
— Scientific American Supplement No. 822 - Volume XXXII, Number 822. Issue Date October 3, 1891 • Various
... combines with the sulphates of the alkali metals to form double sulphates, which correspond to the alums. Chrome alum, K2SO4.Cr2(SO4)3.24H2O, is best prepared by passing sulphur dioxide through a solution of potassium bichromate containing the calculated ...
— Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 - "Chitral" to "Cincinnati" • Various
... a double-and twisted idiot would ask such a fool question. I was paying so much attention to your dumbed story that I chewed up a green persimmon—one that hadn't been touched by the frost. It's puckered my mouth so that I will never get it straight again. It's worse than a pound of alum and a gallon of tanbark juice mixed together. O, laugh, if you want to—that's just what I'd expect from you. That's about all ...
— The Red Acorn • John McElroy
... one-quart jars; wash and sprinkle over them one cupful of table salt; let them remain over night; in the morning, wash and pack in the jars. Add one teaspoonful of whole cloves, one teaspoonful of whole allspice, one teaspoonful of white mustard seed, and two pieces of alum, as large as a pea, to each jar. Fill the jars with boiling ...
— Things Mother Used To Make • Lydia Maria Gurney
... we were idling around camp, June Tucker sounded the assembly, and we were ordered aboard the cars. We pulled out for Millboro; from there we had to foot it to Bath Alum and Warm Springs. We ...
— "Co. Aytch" - Maury Grays, First Tennessee Regiment - or, A Side Show of the Big Show • Sam R. Watkins


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