deuterium

Home > ... > Science and Technology > Chemistry > Compounds and Elements > ...

Essential reading Compare
side-by-side A Dictionary of Astronomy The Concise Oxford Dictionary ... The Columbia Encyclopedia, ...

deuterium

deuterium , isotope of hydrogen with mass no. 2. The deuterium nucleus, called a deuteron, contains one proton and one neutron. Deuterium is also called heavy hydrogen, and water in which the hydrogen atoms are deuterium is called heavy water (deuterium oxide, D ₂ O). Deuterons are sometimes used in particle accelerators, and heavy water is used in "swimming pool" nuclear reactors as a moderator.

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1E1-deuteriu" title="Facts and information about deuterium">deuterium</a>

Give this article a thumbs-up on StumbleUpon

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"deuterium." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 30 Nov. 2009 <http://www.encyclopedia.com>.

"deuterium." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. (November 30, 2009). http://www.encyclopedia.com/doc/1E1-deuteriu.html

"deuterium." The Columbia Encyclopedia, Sixth Edition. 2008. Retrieved November 30, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-deuteriu.html

Learn more about citation styles

deuterium

The Concise Oxford Dictionary of English Etymology | 1996 | | Â© The Concise Oxford Dictionary of English Etymology 1996, originally published by Oxford University Press 1996. (Hide copyright information) Copyright

deuterium (chem.) an isotope of hydrogen. symbol D. XX. f. Gr. deúteros (cf. next) + -IUM.

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1O27-deuterium" title="Facts and information about deuterium">deuterium</a>

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

T. F. HOAD. "deuterium." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 30 Nov. 2009 <http://www.encyclopedia.com>.

T. F. HOAD. "deuterium." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (November 30, 2009). http://www.encyclopedia.com/doc/1O27-deuterium.html

T. F. HOAD. "deuterium." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved November 30, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-deuterium.html

Learn more about citation styles

deuterium

A Dictionary of Astronomy | 1997 | Â© A Dictionary of Astronomy 1997, originally published by Oxford University Press 1997. (Hide copyright information) Copyright

deuterium An isotope of hydrogen, the nucleus of which is composed of one proton and one neutron. Deuterium is expected to have been produced in the Big Bang as a by-product of the nuclear reactions that produce helium. This makes it potentially important as a test of the Big Bang model, because deuterium cannot easily be made in stars, and any significant quantity of deuterium observed today is therefore presumably of primordial origin.

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1O80-deuterium" title="Facts and information about deuterium">deuterium</a>

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"deuterium." A Dictionary of Astronomy. 1997. Encyclopedia.com. 30 Nov. 2009 <http://www.encyclopedia.com>.

"deuterium." A Dictionary of Astronomy. 1997. Encyclopedia.com. (November 30, 2009). http://www.encyclopedia.com/doc/1O80-deuterium.html

"deuterium." A Dictionary of Astronomy. 1997. Retrieved November 30, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-deuterium.html

Learn more about citation styles

Related entries from encyclopedias, dictionaries and thesauruses

Rate these entries|See all related entries

Free newspaper and magazine articles

	Concert Pharmaceuticals and GlaxoSmithKline Form Alliance to Develop Novel Deuterium Modified Drugs. Business Wire; 6/2/2009
	BOC's High-Purity Deuterium Gas Lights the Way for Low Water Peak Fiber Manufacture. Business Wire; 7/16/2003
	Concert Pharmaceuticals Presents Clinical Results Demonstrating Reduced Drug-Drug Interactions with a Deuterium-Modified Compound. Business Wire; 9/14/2009

Facts and information from other sites

Related articles from newspapers, magazines, and more

	Deuterium showers Milky Way center. News Wire article from: United Press International; 7/5/2000; 700+ words ; ...surprise, astronomers have observed deuterium -- heavy hydrogen thought to have formed...center of the Milky Way Galaxy. Since deuterium is easily destroyed in stars, its presence...to contain only negligible amounts of deuterium, kept a round-the-clock surveillance...
	Deuterium: The Secret Ingredient for Gate Oxides? Magazine article from: Semiconductor International; 1/1/2001; ; 700+ words ; ...optimizing gate oxide reliability. By adding deuterium through a process called deuterium pyrogenic oxidation, they have been able to...studies had confirmed the effectiveness of deuterium annealing in reducing interface-defect generation...
	Hubble measures deuterium on Jupiter.(Hubble Space Telescope) Magazine article from: Science News; 10/5/1996; 700+ words ; ...along with its much rarer isotope, deuterium), helium, and lithium-were forged...seconds after the birth of the cosmos. Deuterium plays a special role because the amount...the universe began. Because stars burn deuterium into helium, the abundance of this isotope...
	Too much deuterium? A chemical mystery in the Milky Way. Magazine article from: Science News; 9/9/2006; ; 700+ words ; ...Milky Way and how the galaxy was built. Deuterium is a heavy isotope of hydrogen. Because...it in significant amounts, the amount of deuterium in the universe declines steadily. The deuterium abundance in the Milky Way is therefore...
	'Hidden' Milky Way Deuterium Found; 'Heavy Hydrogen' Abundance Will Force Astronomers to Revise Theories. News Wire article from: Ascribe Higher Education News Service; 8/15/2006; 700+ words ; ...formation. This form of hydrogen, called deuterium, was created a few minutes after the...Journal, the FUSE teamAEs new large deuterium survey solves a 35-year-old mystery...explain the widely varying levels of deuterium," said Warren Moos, principal investigator...
	'HIDDEN' MILKY WAY DEUTERIUM FOUND News Wire article from: US Fed News Service, Including US State News; 8/14/2006; 700+ words ; ...formation. This form of hydrogen, called deuterium, was created a few minutes after the...Journal, the FUSE team's new large deuterium survey solves a 35-year-old mystery concerning deuterium's uneven distribution in the Milky...
	THE INFLUENCE OF SELF-STRESSES ON THE DEUTERIUM DIFFUSION IN Pd^sub 77^Ag^sub 23^ MEMBRANE Magazine article from: Collection of Czechoslovak Chemical Communications; 1/1/2005; ; 700+ words ; The permeation of deuterium through the palladium-silver Pd...investigated. The diffusion coefficients of deuterium were determined at four temperatures...stresses, created after introduction of deuterium into membrane with some initial deuterium...
	Effect of dislocation trapping on deuterium diffusion in deformed, single-crystal Pd Magazine article from: Metallurgical and Materials Transactions; 6/1/1998; ; 700+ words ; ...SANS) has been used to characterize deuterium trapping at dislocations in deformed...in Pd. The reduction of the trapped deuterium concentration at dislocations during...dislocation trapping interaction. The deuterium concentration reduction proceeded 1...
	Concert Pharmaceuticals and GlaxoSmithKline Form Alliance to Develop Novel Deuterium Modified Drugs. Business Wire; 6/2/2009; 700+ words ; ...collaborate to develop and commercialize deuterium-containing medicines. The deal includes...Concert will also provide GSK with deuterium-modified versions of three GSK pipeline...tiered, double-digit royalties based on deuterium-containing products arising from the...
	BOC's High-Purity Deuterium Gas Lights the Way for Low Water Peak Fiber Manufacture. Business Wire; 7/16/2003; 700+ words ; ...and reliable supply of high-purity deuterium gas for use in producing low water peak...1 ppb. One process exposes fiber to deuterium gas at elevated temperature and pressure. Concentrated deuterium, dilute deuterium (Less than 10 percent...