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ammonium sulphate

British  

noun

  1. a white soluble crystalline solid used mainly as a fertilizer and in water purification. Formula: (NH 4 ) 2 SO 4

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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He told Xinhua that the damaged factory has been producing ammonium sulphate, guanidine nitrate and nitro guanidine.

From BBC Feb. 28, 2012

The new process, by conducting the distillation of the coal at low temperature, sacrifices about half of the maximum obtainable illuminating gas, as well as ammonium sulphate.

From Time Magazine Archive

To do this, saturated ammoniacal liquor is decomposed by lime in the presence of steam, and the freed ammonia is passed into strong sulphuric acid, the saturated solution of ammonium sulphate being carefully crystallized.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" by Various

The ferrous ammonium sulphate solution is previously standardised by titration with a potassium bichromate solution of one-tenth the above strength, made by diluting 10 c.c. of the strong solution to 100 c.c. with water.

From The Handbook of Soap Manufacture by Simmons, W. H.

If pure ferrous ammonium sulphate is used as the standard, clear crystals only should be selected.

From An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes by Talbot, Henry P.

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