News tagged with ammonium
New methods for better purification of wastewater
Before wastewater reaches recipient waters, nutrients must be removed in order to avoid eutrophication and large algal blooms, which may result in serious damage to animal and plant life. Robert Almstrand at the University ...
Mar 05, 2012 |
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Mock atoms prove attractive: Researchers added first pseudo atoms to electronegativity scale
(PhysOrg.com) -- When studying an atom's ability to attract nearby electrons, scientists rely on electronegativity scales, which describe each atom's ability to pull in these negatively charged particles. ...
Jan 06, 2012 |
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A dance of aerosols: Study shows plant-sourced particles pick and choose their partners
(PhysOrg.com) -- In the complex molecular mixer that is the atmosphere, some molecules dance with others and some are wallflowers, according to scientists at Pacific Northwest National Laboratory. Using a ...
Space & Earth / Earth Sciences
Dec 20, 2011 |
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How ammonia affects city's air
(PhysOrg.com) -- Motor vehicles and industry are primary producers of ammonia in Houston's atmosphere, and cars and trucks appear to boost their output during the winter, according to a new study by researchers at Rice University ...
Space & Earth / Earth Sciences
Oct 11, 2011 |
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Pee power: Urine-loving bug churns out space fuel
Scientists on Sunday said they had gained insights into a remarkable bacterium that lives without oxygen and transforms ammonium, the ingredient of urine, into hydrazine, a rocket fuel.
Oct 02, 2011 |
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Nitrogen in the soil cleans the air
Eutrophication harms the environment in many ways. Unexpectedly, nitrogen fertilizer may also be positive for the environment. And even acidic soils, promoting the destruction of forests, can have a positive ...
Aug 19, 2011 |
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New technology could capture ammonia from liquid manure
Though it may not sound very glamorous, a new method of extracting ammonium from liquid animal manure could be exciting news for both confined animal operations and environmental groups, according to a Texas AgriLife Extension ...
Aug 11, 2011 |
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Team makes discoveries about major event in history of complex life
(PhysOrg.com) -- A team of scientists led by Montana State University has discovered the "when" of a major event that led to the evolution of complex life on Earth.
Space & Earth / Earth Sciences
Jun 21, 2011 |
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Nitrate fertiliser wasted on sugarcane
(PhysOrg.com) -- Rising nitrogen fertiliser application to sugarcane crops globally and the potential for this fertiliser to be leached from soil and lost to the atmosphere have been highlighted in a new study led by The ...
May 09, 2011 |
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Bacteria shown to 'smell' ammonia
(PhysOrg.com) -- A new study provides the first evidence that bacteria respond to odors, which according to one of the researchers may be the earliest evolutionary example of olfaction.
Aug 18, 2010 |
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'Super socks' help stem pollution runoff
Agricultural Research Service (ARS) scientists and their collaborators have improved on an existing method for removing contaminants from storm water runoff. These findings could provide surface waters additional protection ...
Jul 23, 2010 |
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Better Way to Measure Particle Shape Proves Popular
Tiny particles are pivotal to climate change, public health, and nanotechnology. A significant fraction of these particles are aspherical, yet scientists must routinely assume the particles are spherical to ...
Sep 08, 2009 |
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Ammonium
The ammonium (more obscurely: aminium) cation is a positively charged polyatomic cation with the chemical formula NH+ 4. It is formed by the protonation of ammonia (NH3). Ammonium is also a general name for positively charged or protonated substituted amines and quaternary ammonium cations (N+R4), where one or more hydrogen atoms are replaced by organic radical groups (indicated by R).
In the substitutive nomenclature NH4+ is denoted by the name azanium instead of ammonium.
For more information about Ammonium, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
