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Ammonia - History | A Wisdom Archive on Ammonia - History | | Ammonia - History A selection of articles related to Ammonia - History | |
| We recommend this article: Ammonia - History - 1, and also this: Ammonia - History - 2. |
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Ammonia, Ammonia - Acidity, Ammonia - Ammonia as a ligand, Ammonia - Bibliography, Ammonia - Detection and determination, Ammonia - Formation of other compounds, Ammonia - Formation of salts, Ammonia - History, Ammonia - Household use, Ammonia - Laboratory use of ammonia solutions, Ammonia - Laboratory use of anhydrous ammonia gas or liquid, Ammonia - Liquid ammonia as a solvent, Ammonia - Production, Ammonia - Properties, Ammonia - Redox properties of liquid ammonia, Ammonia - Reference, Ammonia - Safety precautions, Ammonia - Solubility of salts, Ammonia - Solutions of metals, Ammonia - Toxicity, Ammonia - Uses, Chlorination, Water purification, Nitrogen metabolism
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ARTICLES RELATED TO Ammonia - History | |
| | |  Ammonia - History: Encyclopedia II - Ammonia - History
Salts of ammonia have been known from very early times; thus the term Hammoniacus sal appears in the writings of Pliny, although it is not known whether the term is identical with the more modern sal-ammoniac.
In the form of sal-ammoniac, ammonia was known to the alchemists as early as the 13th century, being mentioned by Albertus Magnus. It was also used by dyers in the Middle Ages in the form of fermented urine to alter the colour of vegetable dyes. In the 15th century, Basilius Valentinus showed that ammonia could be ...
See also:Ammonia, Ammonia - History, Ammonia - Production, Ammonia - Properties, Ammonia - Formation of salts, Ammonia - Acidity, Ammonia - Formation of other compounds, Ammonia - Ammonia as a ligand, Ammonia - Uses, Ammonia - Liquid ammonia as a solvent, Ammonia - Solubility of salts, Ammonia - Solutions of metals, Ammonia - Redox properties of liquid ammonia, Ammonia - Detection and determination, Ammonia - Safety precautions, Ammonia - Toxicity, Ammonia - Household use, Ammonia - Laboratory use of ammonia solutions, Ammonia - Laboratory use of anhydrous ammonia gas or liquid, Ammonia - Reference, Ammonia - Bibliography Read more here: » Ammonia: Encyclopedia II - Ammonia - History |
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| | | | Ammonia - History: Encyclopedia II - Ammonia - Safety precautions
Ammonia - Toxicity.
The toxicity of ammonia solutions does not usually cause problems for humans and other mammals, as a specific mechanism exists to prevent its build-up in the bloodstream. Ammonia is converted to carbamoyl phosphate by the enzyme carbamoyl phosphate synthase, and then enters the urea cycle to be either incorporated into amino acids or excreted in the urine. However fish and amphibians lack this mechanism, as they can usually eliminate ammonia from their bodies by direct excretion. Ammonia even at dilute concentrations is highly toxic to aquatic animals, and for this reason it is class ...
See also:Ammonia, Ammonia - History, Ammonia - Production, Ammonia - Properties, Ammonia - Formation of salts, Ammonia - Acidity, Ammonia - Formation of other compounds, Ammonia - Ammonia as a ligand, Ammonia - Uses, Ammonia - Liquid ammonia as a solvent, Ammonia - Solubility of salts, Ammonia - Solutions of metals, Ammonia - Redox properties of liquid ammonia, Ammonia - Detection and determination, Ammonia - Safety precautions, Ammonia - Toxicity, Ammonia - Household use, Ammonia - Laboratory use of ammonia solutions, Ammonia - Laboratory use of anhydrous ammonia gas or liquid, Ammonia - Reference, Ammonia - Bibliography Read more here: » Ammonia: Encyclopedia II - Ammonia - Safety precautions |
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| | | | Ammonia - History: Encyclopedia - August Wilhelm von Hofmann August Wilhelm von Hofmann (April 8, 1818 – May 5, 1892) was a German chemist.
Hofmann was born at Giessen. Not intending originally to devote himself to physical science, he first took up the study of law and philology at Göttingen, and the general culture he thus gained stood him in good stead when he turned to chemistry, the study of which he began under Justus von Liebig. When, in 1845, a school of practical chemistry was started in London, under the style of the Royal College of Chemistry, Hofmann, largely through the i ...
Read more here: » August Wilhelm von Hofmann: Encyclopedia - August Wilhelm von Hofmann |
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| | | | Ammonia - History: Encyclopedia - Alum Alum, in chemistry, is a term given to the crystallized double sulfates of the typical formula M+2SO4·M3+2(SO4)3·24H2O, where M+ is the sign of an alkali metal (lithium, sodium, potassium, rubidium, or caesium), and M3+ denotes one of the trivalent metals (typically aluminium, chromium, or iron (III)). The ammonium ion (NH4+) also occurs in the M+ position.
These salts are employed in ...
Including:
Read more here: » Alum: Encyclopedia - Alum |
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