potash alum
Americannoun
noun
Etymology
Origin of potash alum
First recorded in 1830–40
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
This was the common potash alum and uncombined with any carbonated alkali, and it passed into the stomach unchanged.
It is quite a matter of indifference to the photographer whether he uses potash alum or ammonia alum.
From Scientific American Supplement, No. 401, September 8, 1883 by Various
Common alum is strictly potash alum; other two varieties are soda alum and ammonia alum, both similar in properties.
From The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide by Various
Nitrat of potash, oxygenated muriat of potash, alum, sulphat of soda, &c. are examples of this circumstance, as, to make these salts cristallize, refrigeration must be added to evaporation.
From Elements of Chemistry, In a New Systematic Order, Containing all the Modern Discoveries by Lavoisier, Antoine
Portions of the gum solutions were mixed with small quantities of menthol, thymol, salol, and saccharin in alkaline solution, also with boric acid, sodium phosphate, and potash alum in aqueous solution.
From Scientific American Supplement, No. 821, September 26, 1891 by Various
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
