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Topic: Ytterbium

Related Topics

Lutetium

Lutetium

Thulium

Erbium

Thulium

Dysprosium

Fermium

Yttrium

Praseodymium

Technetium

Europium

Gadolinium

Holmium

Samarium

Terbium

	Ytterbium
		Ytterbium is a chemical element with atomic number 70, and is represented by the symbol Yb.
		Ytterbium is not as well understood as many other elements, largely because it is a rare earth element, generally found with other rare earth elements like monazite sands, euxenite, and xenotime.
		Ytterbium compounds should be treated as highly toxic; the danger is likely limited, but they do pose eye and skin irritation hazards and may be teratogenic, as well as posing fire and explosion hazards when in dust form.
	www.iscid.org /encyclopedia/Ytterbium (280 words)

	Ytterbium - Wikipedia, the free encyclopedia
		A soft silvery metallic element, ytterbium is a rare earth of the lanthanide series and is found in the minerals gadolinite, monazite, and xenotime.
		Ytterbium is a soft, malleable and rather ductile element that exhibits a bright silvery luster.
		Ytterbium compounds are, however, known to cause skin and eye irritation and may be teratogenic.
	en.wikipedia.org /wiki/Ytterbium (791 words)

	Ytterbium
		Ytterbium was originally called neoytterbia because once scientists separated the compound they called ytterbia they decided to name one of he elements(Ytterbium) a almost ytterbia jr.
		Ytterbium is also found in yttria, gadolinite, xenotime and of course erbia which contains ytterbia and which then in turn contains ytterbium and lutecia.
		Ytterbium is a solid metal, but must be stored in air tight containers because if it isn't it will react chemically with the oxygen in the air and rust.
	www.mvschools.org /ms/projects/html/black/ytterbium.htm (702 words)

	Ytterbium (Yb) (Site not responding. Last check: 2007-09-18)
		Ytterbium, one of the rare earth elements, is a soft, malleable, ductile metallic element.
		Ytterbium can be found in combination with minerals such as xenotime, euxenite, monazite and gadolinite.
		Ytterbium metal is used to improve the grain refinement, strength and other mechanical properties of stainless steel.
	www.bayerus.com /msms/fun/pages/periodic/ytterbium/index.html (166 words)

	Ytterbium (Yb) - Chemical properties, Health and Environmental effects
		Ytterbium is sometimes associated with yttrium or other related elements and is used in certain steels.
		Ytterbium is a skin and eye irritant and it is also a suspected teratogen.
		Ytterbium poses no threat to plants and animals and its salts are being introduced into the chemical industry as catalysts in place of ones that are regarded as toxic and polluting.
	www.lenntech.com /Periodic-chart-elements/Yb-en.htm (346 words)

	CRCPress Periodic Table Online: Cadmium
		Ytterbium has a bright silvery luster, is soft, malleable, and quite ductile.
		Ytterbium is readily attacked and dissolved by dilute and concentrated mineral acids and reacts slowly with water.
		Ytterbium has three allotropic forms with transformation points at –13° and 795°C. The beta form is a room-temperature, face-centered, cubic modification, while the high-temperature gamma form is a body-centered cubic form.
	chemnetbase.com /periodic_table/elements/ytterbium.htm (369 words)

	ytterbium (Site not responding. Last check: 2007-09-18)
		Ytterbium - (Ytterby, village in Sweden), Yb; at.
		Ytterbium has three allotropic forms with transformation points at -13 deg and 795 deg C. The beta form is a room-temperature, face-centered, cubic modification, while the high-temperature gamma form is a body-centered cubic form.
		Ytterbium metal is commercially available with a purity of about 99.9% for about $5/g.
	www.speclab.com /elements/ytterbium.htm (402 words)

	Principal Metals-Ytterbium
		Ytterbium has three allotropic forms with transformation points at -13C and 795C.
		The electrical resistance increases tenfold as the pressure is increased to 39,000 atm and drops to about 10% of its standard temperature-pressure resistivity at a pressure of 40,000 atm.
		Ytterbium metal is commercially available with a purity of about 99+% for about $875/kg.
	www.principalmetals.com /utilities/70.htm (363 words)

	Ytterbium
		Ytterbium has three allotropes which are called alpha, beta and gamma and whose transformation points are at -13 ° C and 795 °C. The beta form exists at room temperature and has a face-centered crystal structure while the high-temperature gamma form has a body-centered crystal structure.
		He suspected that ytterbia was a compound of a new element he called ytterbium (which was in fact the first rare earth to be discovered).
		Metallic ytterbium dust posses a fire and explosion hazard.
	www.askfactmaster.com /Yb (760 words)

	Periodic Table : Scholar edition: ytterbium : The Essentials
		This sample is from The Elements Collection, an attractive and safely packaged collection of the 92 naturally occurring elements that is available for sale.
		Ytterbium has a bright silvery lustre, is soft, malleable, and quite ductile.
		Ytterbium is readily attacked and dissolved by mineral acids and reacts slowly with water.
	www.webelements.com /webelements/scholar/elements/ytterbium/key.html (145 words)

	It's Elemental - The Element Ytterbium
		Marignac believed that ytterbia was a compound of a new element, which he named ytterbium.
		Today, ytterbium is primarily obtained through an ion exchange process from monazite sand ((Ce, La, Th, Nd, Y)PO), a material rich in rare earth elements.
		One of ytterbium's isotopes is being considered as a radiation source for portable X-ray machines.
	education.jlab.org /itselemental/ele070.html (332 words)

	YTTERBIUM in West Virginia Coals (Site not responding. Last check: 2007-09-18)
		Ytterbium is one of the rare earth elements (REE) present in West Virginia coals with little environmental impact.
		Ytterbium is a REE that correlated poorly with ash yield, but correlated well with several of the other REE, especially lutetium (Lu), europium (Eu), samarium (Sm), cerium (Ce), terbium (Tb), lanthanum (La) and erbium (Er).
		Ytterbium displays no stratigraphic or areal trends except for a low average abundance in the Pittsburgh and Redstone coals.
	www.wvgs.wvnet.edu /www/datastat/te/YbHome.htm (264 words)

	70 Ytterbium
		The story of discovery and naming of the rare earth element Ytterbium began with Carl Gustav Mosander splitting old yttria into three new elements, yttria proper, erbia, and terbia (cf.
		In the report of the International Commission on Atomic Weights of 1906 it was mentioned that Urbain and Auer had independently proved that the old Ytterbium was a mixture of two elements, for one of which Urbain had suggested, and the Commission approved, the name Lutecium.
		In 1989 the mine was voted the "Historical Landmark of the year" by the American Society of Metals, which annually awards a place, building etc. having a historical significance within the metal or metalworking industry.
	www.vanderkrogt.net /elements/elem/yb.html (703 words)

	American Elements: Ytterbium Fluoride Supplier & Tech Info (Site not responding. Last check: 2007-09-18)
		Ytterbium Fluoride is a water insoluble Ytterbium source for use in oxygen-sensitive applications, such as metal production.
		Ytterbium is applied to fiber amplifier and fiber optic technologies and in lasing applications.
		Ytterbium Fluoride is generally immediately available in most volumes.
	www.americanelements.com /ybf.html (651 words)

	Experimental atomic clock uses ytterbium 'pancakes'
		Scientists at the National Institute of Standards and Technology (NIST) working with Russian colleagues have significantly improved the design of optical atomic clocks that hold thousands of atoms in a lattice made of intersecting laser beams.
		The design, in which ytterbium atoms oscillate or "tick" at optical frequencies, has the potential to be more stable and accurate than today's best time standards, which are based on microwaves at much lower frequencies.
		The lattice of laser beams traps small numbers of ytterbium atoms in pancake-shaped "wells." A yellow laser excites the atoms so that they switch between lower (blue) and higher (yellow) energy levels.
	www.eurekalert.org /pub_releases/2006-03/nios-eac030606.php (537 words)

	Ytterbium - Products - HEFA Rare Earth Canada Ltd.
		Ytterbium, atomic no. 70, symbol Yb, weight at 173.04, is being applied to numerous fiber amplifier and fiber optic technologies and in various lasing applications.
		It has a single dominant absorption band at 985 in the infra-red making it useful in silicon photocells to directly convert radiant energy to electricity.
		Ytterbium metal increases its electrical resistance when subjected to very high stresses.
	www.baotou-rareearth.com /yb.html (167 words)

	Chemistry : Periodic Table : ytterbium : key information
		Here is a brief summary of the isolation of ytterbium.
		Ytterbium metal is available commercially so it is not normally necessary to make it in the laboratory, which is just as well as it is difficult to isolate as the pure metal.
		Pure ytterbium is available through the electrolysis of a mixture of molten YbCl
	www.webelements.com /webelements/elements/text/Yb/key.html (380 words)

	Ytterbium (Site not responding. Last check: 2007-09-18)
		Ytterbium, Yb, is a metallic element, which is found in the lanthanide series of inner transition metals in Group IIIa of the periodic table.
		Ytterbium was discovered by Marignac in 1878 AD.
		Ytterbium has one radioactive isotope which is used as a radiation source in portable X-Ray machines.
	www.ucc.ie /ucc/depts/chem/dolchem/html/elem/elem070.html (57 words)

	Ytterbium : The Poetic Table of the Elements at everypoet.com
		Ytterbium : The Poetic Table of the Elements at everypoet.com
		Ytterbium has 70 protons and a mass of 173
		My mind was telling me no, but my body was telling me yes.
	www.everypoet.net /element/display.php?symbol=Yb (241 words)

	Ytterbium
		Sheet is cut to order and sold by the square inch or square foot.
		Ytterbium Powder -40 Mesh, Ampoules Under Dry Argon
		Powder, shot, pellets, and ingots are packaged to order and sold by the gram or kilogram.
	www.espi-metals.com /metals/catytterbium.htm (104 words)

	70 Ytterbium
		Ytterbium is one of four, yes four, elements named after the same small village in Sweden: Terbium, Ytterbium, Yttrium, and Erbium.
		This sample arrived with a full set of lanthanides at a time when I was missing europium, terbium, holmium, ytterbium, and of course lutetium.
		He donated this beautiful chunk of ytterbium as a sample to show the sorts of things he can supply: If you need some rare earths, contact him or check out his eBay auctions.
	www.theodoregray.com /PeriodicTable/Elements/070/index.s7.html (763 words)

	Chemical & Engineering News: Latest News - Ytterbium Catalyst for Asymmetric Biginelli Reaction
		A new chiral catalyst based on ytterbium enables the room-temperature formation of optically active dihydropyrimidines through multicomponent Biginelli condensation with good to excellent enantioselectivities.
		In the Biginelli reaction, an aldehyde, a 1,3-ketoester, and a urea or thiourea condense in one pot to form polyfunctionalized dihydropyrimidines.
		Many of these heterocyclic compounds possess potent biological activities, and researchers have long sought an asymmetric version of the atom-economical reaction.
	pubs.acs.org /cen/news/83/i47/8347catalyst.html (280 words)

	ytterbium - OneLook Dictionary Search
		Tip: Click on the first link on a line below to go directly to a page where "ytterbium" is defined.
		Ytterbium, ytterbium : WebElements Periodic Table of the Elements [home, info]
		Words similar to ytterbium: yb, atomic number 70, more...
	www.onelook.com /?loc=pub&w=ytterbium (218 words)

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