News tagged with ammonia
New Images Indicate Object Hits Jupiter
(PhysOrg.com) -- Scientists have found evidence that another object has bombarded Jupiter, exactly 15 years after the first impacts by the comet Shoemaker-Levy 9.
Space & Earth / Space Exploration
Jul 21, 2009 |
4.8 / 5 (24) |
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A water ocean on Titan?
Oddities in the rotation of Saturn's largest moon Titan might add to growing evidence that it harbors an underground ocean, researchers suggest.
Space & Earth / Space Exploration
May 05, 2011 |
5 / 5 (23) |
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New way to break some of the strongest chemical bonds
(PhysOrg.com) -- Scientists at Cornell University in the U.S. have found a new way of breaking two of the strongest chemical bonds, at ambient temperature and pressure, and this breakthrough could lead to ...
Dec 16, 2009 |
4.6 / 5 (24) |
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Replace cattle? Edible insects produce smaller quantities of greenhouse gases
(PhysOrg.com) -- Insects produce much smaller quantities of greenhouse gases per kilogram of meat than cattle and pigs. This is the conclusion of Dutch team of scientists at Wageningen University, who have joined forces with ...
Jan 11, 2011 |
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Pair claim they can make ammonia to fuel cars for just 20 cents per liter
(PhysOrg.com) -- John Fleming of SilverEagles Energy and Tim Maxwell from Texas Tech University, say they have developed a way to make ammonia that is cheap enough so that it could be used as fuel for cars. If th ...
Sep 05, 2011 |
4.1 / 5 (22) |
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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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New process is promising for hydrogen fuel cell cars
A new process for storing and generating hydrogen to run fuel cells in cars has been invented by chemical engineers at Purdue University.
Jun 16, 2010 |
4.3 / 5 (20) |
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What's Smelly But Can Fuel a Car?
Driving home from a seminar on fuel cell technology, Gerardine Botte was struck with a notion. Her idea was based on water electrolysis, a process used to produce hydrogen energy from water. Botte, an associate ...
Technology / Energy & Green Tech
Sep 02, 2009 |
4.6 / 5 (18) |
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Hydrogen Storage Gets New Hope from Rechargeable 'Chemical Fuel Tank'
(PhysOrg.com) -- A new method for "recycling" hydrogen-containing fuel materials could open the door to economically viable hydrogen-based vehicles.
Sep 01, 2009 |
3.9 / 5 (18) |
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Kansas scientists probe mysterious possible comet strikes on Earth
It's the stuff of a Hollywood disaster epic: A comet plunges from outer space into the Earth's atmosphere, splitting the sky with a devastating shock wave that flattens forests and shakes the countryside.
Space & Earth / Space Exploration
Dec 14, 2009 |
4.3 / 5 (16) |
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Alien world is blacker than coal
(PhysOrg.com) -- Astronomers have discovered the darkest known exoplanet - a distant, Jupiter-sized gas giant known as TrES-2b. Their measurements show that TrES-2b reflects less than one percent of the sunlight ...
Aug 11, 2011 |
4.9 / 5 (14) |
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Planet's nitrogen cycle overturned by 'tiny ammonia eater of the seas'
(PhysOrg.com) -- It's not every day you find clues to the planet's inner workings in aquarium scum. But that's what happened a few years ago when University of Washington researchers cultured a tiny organism from the bottom ...
Sep 30, 2009 |
5 / 5 (13) |
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Chemists develop liquid-based hydrogen storage material
University of Oregon chemists have developed a boron-nitrogen-based liquid-phase storage material for hydrogen that works safely at room temperature and is both air- and moisture-stable -- an accomplishment ...
Nov 22, 2011 |
4.4 / 5 (14) |
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Highlight: Biochemists discover that enzyme converts CO to propane
(PhysOrg.com) -- UC Irvine researchers were exploring vanadium nitrogenase's ability to form ammonia when they stumbled onto its other ability, which could be exploited for the cost-efficient production of fuels.
Aug 06, 2010 |
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Meteorites may have delivered first ammonia for life on earth: new study
Researchers have teased ammonia of a carbon-containing meteorite from Antarctica, and propose that meteorites may have delivered that essential ingredient for life to an early Earth.
Space & Earth / Space Exploration
Feb 28, 2011 |
4.6 / 5 (9) |
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Ammonia
Ammonia is a compound of nitrogen and hydrogen with the formula NH3. It is a colourless gas with a characteristic pungent odour. Ammonia contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to food and fertilizers. Ammonia, either directly or indirectly, is also a building-block for the synthesis of many pharmaceuticals. Although in wide use, ammonia is both caustic and hazardous. In 2006, worldwide production was estimated at 146.5 million tonnes. It is used in commercial cleaning products.
Ammonia, as used commercially, is often called anhydrous ammonia. This term emphasizes the absence of water in the material. Because NH3 boils at -33.34 °C (-28.012 °F) at a pressure of 1 atmosphere, the liquid must be stored under high pressure or at low temperature. Its heat of vapourization is sufficiently high so that NH3 can be readily handled in ordinary beakers, in a fume hood (i.e., if it is already a liquid it will not boil readily). "Household ammonia" or "ammonium hydroxide" is a solution of NH3 in water. The concentration of such solutions is measured in units of baume (density), with 26 degrees baume (about 30% w/w ammonia at 15.5 °C) being the typical high concentration commercial product. Household ammonia ranges in concentration from 5 to 10 weight percent ammonia.
For more information about Ammonia, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
