Definitions
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) Alum.
Etymologies
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Examples
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Occasionally he confounds this salt with a mixture of sulphate of alumina and iron, which, in all probability, was alum containing iron, the process of separation not being perfect; and he mentions that this kind of alumen blackens on the application of nut-galls, showing that iron was in it.
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SOund ob hoomans chin hittin teh alumin.. alumen… teh metal rungs ub teh ladder on the wai down …
Didn’t mean to - Lolcats 'n' Funny Pictures of Cats - I Can Has Cheezburger? 2009
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The name aluminum was derived from alumen, the Latin name for alum (an aluminum sulfate mineral).
Aluminum 2008
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He also mentions that this dark alumen was used for purifying gold.
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Probably the alumen referred to by Pliny, as exuding from the earth, was sulphate of alumina, without potash or soda, a salt not easily crystallized, but as effective, in many cases more effective, in the operations of dyeing, as alum, which is attested by the preference given to this salt over alum for many purposes at the present day.
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The liquid of this iron alumen, if put upon light-colored gold, and heated over a fire, gives it a very rich tint; a process practiced still for the same purpose.
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Pliny says that alumen was a product of Spain, Egypt, Armenia,
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The metal originally got its name from the Latin alumen.
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In Schifto aluminari non numquam plumarum inftar efflorefcit: num vcterum alumen plumofum?
Torberni Bergman, ... sciagraphia regni mineralis: secundum principia proxima digesti Torbern Bergman 1783
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Sed eius terra non eft met&llica, cum acido fulphuris alumen non conftitult, hec cuprutn tingit colbre luteo '.
Joan. Ant. Scopoli ... Fvndamenta Chemiae praelectionibvs pvblicis accomodata Giovanni Antonio Scopoli 1777
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