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ammonia
ammonia
ammonia A colourless gas, NH
3, with a strong pungent odour. Ammonia is produced by the
deamination of excess amino acids in the liver. Industrially it is made from its constituent elements by the Haber process for use in the manufacture of nitric acid, ammonium nitrate, ammonium phosphate, and urea (the last three as fertilizers), explosives, dyestuffs, and resins. The participation of ammonia in the
nitrogen cycle is a most important natural process. By means of
nitrogenase enzymes, nitrogen-fixing bacteria are able to achieve similar reactions to those of the Haber process, but under normal conditions of temperature and pressure. The reactions release ammonium ions, which are converted by nitrifying bacteria into nitrite and nitrate ions.
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Ammonia Sulphate World Market Outlook 2009 Report.
M2 Presswire; 9/18/2009; 700+ words
; ...September 2009-Research and Markets: Ammonia Sulphate World Market Outlook 2009 Report...researchandmarkets.com/research/019d80/ammonia_sulphate_w) has announced the addition of the "Ammonia Sulphate World Market Outlook 2009" report...
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Ammonia, stalwart of industrial refrigeration, expands its vision. (ammonia being considered as replacement for chlorofluorocarbon refrigerants)
Magazine article from: Air Conditioning, Heating & Refrigeration News; 11/2/1992; ; 700+ words
; ...of the myths and misconceptions about ammonia as a refrigerant, it might be a good...industrial spectrum. In fact, the sale of ammonia refrigeration systems has continued to...of all poultry processing plants employ ammonia as a refrigerant. Those operating the...
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Ammonia Safety Symposium: A Half Century of Progress
Magazine article from: Chemical Engineering Progress; 6/1/2005; ; 700+ words
; ...run more safely. Shortly thereafter, ammonia and hydrogen production became the focal...symposium to discuss safety in air and ammonia plants, "Safe Design and Operation of...000 papers have been presented at AIChE Ammonia Safety Symposia over the years, and untold...
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Ammonia Sulphate: 2009 World Market Outlook And Forecast Through to 2015.
M2 Presswire; 8/18/2009; 700+ words
; ...18 August 2009-Research and Markets: Ammonia Sulphate: 2009 World Market Outlook And...researchandmarkets.com/research/24e8b0/ammonia_sulphate) has announced the addition of the "Ammonia Sulphate: 2009 World Market Outlook And...
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Ammonia's Advantages.
Magazine article from: Air Conditioning, Heating & Refrigeration News; 7/31/2000; 700+ words
; ...industries have predominantly been built for ammonia refrigerant. Today, this is still the case. It is a fact that ammonia in comparison to other substances can...slaughterhouses, and large freezing plants, ammonia has been used for many decades. It...
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Ammonia water chillers: take another look. (ammonia could replace chlorofluorocarbon refrigerants in some applications)
Magazine article from: Air Conditioning, Heating & Refrigeration News; 7/13/1992; ; 700+ words
; ...been in service more than 100 years: Ammonia is its name; NH,,3 is its chemical...is R-717. Nothing has changed with ammonia. It's still a Class 2, toxic refrigerant...are denser than air and odorless. While ammonia can displace oxygen or be considered toxic...
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Reportlinker Adds Ammonia World Market Outlook 2009.
PR Newswire; 10/29/2009; 700+ words
; ...report is available in its catalogue. Ammonia World Market Outlook 2009 http://www.reportlinker.com/p0152043/Ammonia-World-Market-Outlook-2009...report analyzes worldwide markets for Ammonia, including Europe, Asia, North...
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Ammonia Nitrate: 2009 World Market Outlook And Forecast.
M2 Presswire; 8/26/2009; 700+ words
; ...26 August 2009-Research and Markets: Ammonia Nitrate: 2009 World Market Outlook And...researchandmarkets.com/research/b3f9c9/ammonia_nitrate_2) has announced the addition of the "Ammonia Nitrate: 2009 World Market Outlook And...
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Ammonia booklet aims to spread the word on pollution.
M2 Presswire; 10/18/2002; 700+ words
; ...PRESSWIRE-18 October 2002-UK Government: Ammonia booklet aims to spread the word on pollution...the widespread environmental damage caused by ammonia emissions was published today. Ammonia in the UK, a booklet from Defra, will help...
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Ammonia plants still suffering despite falling gas prices.
Magazine article from: Natural Gas Week; 8/11/2003; ; 700+ words
; ...still not be enough to end the ongoing pain of the ammonia industry. While 11 ammonia plants representing about 20% of US capacity have...gas." In May and early June, more than a dozen ammonia and urea facilities either shut down or curtailed...
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ammonia
Book article from: The Columbia Encyclopedia, Sixth Edition
ammonia chemical compound, NH 3 , colorless gas...characteristic pungent, penetrating odor. Ammonia forms a minute proportion of the atmosphere...of animal and vegetable matter. Because ammonia was formerly obtained by destructive distillation...
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Ammonia
Encyclopedia entry from: The Gale Encyclopedia of Science
Ammonia Ammonia, composed of three parts hydrogen and one part nitrogen, is a sharp...soluble in water, where it acts as a base in its chemical reactions. Ammonia was present in the primordial atmosphere of Earth, and may have been...
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Equilibrium
Book article from: Chemistry: Foundations and Applications
...nitrogen and hydrogen gases react to form gaseous ammonia, NH 3 . When nitrogen and hydrogen are first...into the reaction chamber, they begin to form ammonia molecules. As the concentration of ammonia increases, ammonia molecules start to decompose...
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Kraus, Charles August
Dictionary entry from: Complete Dictionary of Scientific Biography
...Franklin became interested in liquid ammonia solutions. Kraus was attracted by the...the solubility of substances in liquid ammonia, the molecular rise in the boiling point of a solution of a solute in liquid ammonia as the molal concentration of the solution...
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Equilibrium, Chemical
Encyclopedia entry from: UXL Encyclopedia of Science
...example, consider the reaction in which ammonia gas (NH 3 ) is made from the elements...nitrogen and hydrogen combine to form ammonia: N 2 + 3 H 2 → 2 NH 3 In the second reaction, ammonia breaks down to form nitrogen and hydrogen...
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