
	Where results make sense

Topic: Clathrate compound

Related Topics

Clathrate

Bricktown Dubuque

Wall gun

Australian National Carillon

Pensford

London SW15

In the News (Wed 30 May 12)

EXECUTIVE POWER

Iran

ANALYSIS

Pakistan

Family compact

	Clathrate compound - Biocrawler (Site not responding. Last check: 2007-10-29)
		A clathrate or clathrate compound or cage compound is a chemical substance consisting of a lattice of one type of molecule trapping and containing a second type of molecule.
		Clathrate complex used to refer only to the inclusion complex of hydroquinone, but recently it has been adopted for many complexes which consist of a host molecule (forming the basic frame) and a guest molecule (set in the host molecule by interaction).
		The clathrate complexes are various and include, for example, strong interaction via chemical bonds between host molecules and guest molecules, or guest molecules set in the geometrical space of host molecules by weak intermolecular force.
	www.biocrawler.com /encyclopedia/Clathrate (480 words)

	Antimicrobial dispersion composition - Patent 5133969
		water for retaining the clathrate compound with a particle size of 200 mesh at maximum to be equally dispersed therein, said clathrate compound being retained in the water at 10-50 wt.
		The clathrate compound is dispersed in a dispersion medium to form an antimicrobial composition in the form of a suspension.
		Each clathrate compound was dispersed in an aqueous dispersion medium (water) to form a suspension, and it was examined for stability and antimicrobial activity.
	www.freepatentsonline.com /5133969.html (3091 words)

	Branched cyclodextrin clathrate compound of hinokitiols and composition containing the same - Patent 6355627
		A clathrate compound according to claim 1, wherein the hinokitiol is at least one compound selected from the group consisting of hinokitiol and a metal salt of hinokitiol.
		A clathrate compound according to claim 1 or 2, wherein the branched cyclodextrin is a branched.beta.-cyclodextrin.
		A clathrate compound according to claim 3, wherein the branched cyclodextrin is a branched.beta.-cyclodextrin selected from the group consisting of a glucosyl.beta.-cyclodextrin, a diglucosyl.beta.-cyclodextrin, a maltosyl.beta.-cyclodextrin, and a dimaltosyl.beta.-cyclodextrin.
	www.freepatentsonline.com /6355627.html (5194 words)

	Clathrate compound - Patent 5091400
		A clathrate compound as claimed in claim 1, wherein the host compound and the quest compound are mixed in a ratio of 1:1 in a molar ratio.
		The clathrate compound prepared by applying a microbicidal component to the new compound may be in the form of a solid.
		Accordingly, where the clathrate compound is put in water, the microbicidal component may gradually dissolve out from the clathrate compound into water so that the microbicidal activity of the compound may be maintained for an extremely long period of time.
	www.freepatentsonline.com /5091400.html (3448 words)

	Werner F. Kuhs: Clathrate Hydrates (Site not responding. Last check: 2007-10-29)
		Clathrate hydrates constitute a class of solids in which the guest molecules occupy, fully or partially, cages in host structures made up of H-bonded water molecules.
		These compounds are interesting for several reasons: much could be learned about water-water interactions in these topologically rather complex systems, especially if one could follow the pressure dependency of the host structure over a wide pressure range.
		Clathrates are believed to occur in large quantities on some outer planets binding gas at fairly high temperatures, which is an interesting issue for planetologists.
	kristall.uni-mki.gwdg.de /docs/Kuhs/clathrate_hydrates.html (2118 words)

	Light-sensitive lithographic printing plate utilizing o-quinone diazide light-sensitive layer containing cyclic ...
		The o-quinonediazide compound to be used in a layer of a positive type light-sensitive composition of the present invention is a compound having a o-quinonediazide group in a molecule.
		The o-quinonediazide compound to be used in the present invention is not particularly limited and may include, for example, an ester compound of a polycondensed resin having a o-quinonediazide group, for example, a polycondensed resin of o-naphthoquinonediazidesulfonic acid, a phenol and an aldehyde or a ketone.
		The clathrate compound which can be used in the present invention is not particularly limited so long as it is a compound which can include water or an organic molecule, but it is preferably an organic compound which can be solved in a solvent used for preparing the composition.
	www.freepatentsonline.com /5635328.html (6744 words)

	clathrate - Hutchinson encyclopedia article about clathrate
		Compound formed when the small molecules of one substance fill in the holes in the structural lattice of another, solid, substance – for example, sulphur dioxide molecules in ice crystals.
		Clathrates are therefore intermediate between mixtures and true compounds (which are held together by ionic or covalent chemical bonds).
		This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
	encyclopedia.farlex.com /clathrate (101 words)

	Clathrate compound - Wikipedia, the free encyclopedia
		A much studied host molecule is Dianin's compound.
		The structure of Clathrates is also related to the structure of foams (see Weaire-Phelan structure).
		For a theory regarding the sudden release of methane clathrate from ocean sediments see global warming.
	en.wikipedia.org /wiki/Clathrate (463 words)

	Detergent composition containing clathrate granules of a perfume-clathrate compound - Patent 4992198
		A clathrate granule comprising 20 to 80 parts by weight of a perfume clathrated with cyclodextrin or a derivation thereof, 5 to 35 parts by weight of a binder and 15 to 50 parts by weight of an extender.
		In general, the inclusion compound of the perfume can be prepared by gradually adding a perfume to a slurry or an aqueous solution of an inclusion compound while stirring the slurry or aqueous solution, collecting a perfume inclusion material by filtration and drying the perfume inclusion material.
		The perfume and the inclusion compound are used in a molar ratio of 0.8 to 1.2.
	freepatentsonline.com /4992198.html (3866 words)

	Physical Chemical Stability of Warfarin Sodium
		The crystalline clathrate form is warfarin sodium-isopropyl alcohol complex, which is prepared either from warfarin or amorphous warfarin sodium to eliminate impurities in warfarin sodium.
		The pharmacologic function of the compound is an anticoagulant that inhibits the synthesis of vitamin K-dependent coagulation factors.
		On storage at 68% RH, the intensity of the peaks in the X-ray powder diffraction pattern of the clathrate warfarin sodium decreased gradually and the peak resolution decreased.
	www.aapspharmsci.org /view.asp?art=ps030103 (3262 words)

	Oral cyclodextrin and mobenzoxamine preparation (US4608366)
		Disclosed herein is an oral mobenzoxamine preparation which comprises a clathrate compound of mobenzoxamine or a salt thereof and cyclodextrin.
		Since the clathrate compound remains extremely stable even when stored for a long period of time and its absorption through the digestive tract is good upon its oral administration, the clathrate compound can be used advantageously as an orally-dosable preparation.
		An orally administratable mobenzoxamine complex comprising a clathrate compound of mobenzoxamine or a salt thereof and cyclodextrin, wherein the ratio of mobenzoxamine or the salt thereof to cyclodextrin ranges from 1:1 to 1:4 by molar ratio.
	www.delphion.com /details?pn10=US04608366 (156 words)

	National Synchrotron Light Source
		Hydrogen molecules are considered to be too small to be enclosed in one of four possible structures of clathrate hydrates, compounds in which molecules of a substance are completely enclosed within the crystal structure of water.
		This high ratio shows that, unlike most clathrate hydrates, where only one molecule of a gas can be trapped inside the clathrate cage, many hydrogen molecules are entrapped in two types of cages (a small and a large one) within each clathrate compound.
		But this clathrate could be grown epitaxially (growth upon the surface of another crystal) on substrates of other sII clathrates or by annealing (heating to remove or prevent internal stress) hydrogen in amorphous ice.
	www.nsls.bnl.gov /newsroom/science/2003/02-Mao.htm (734 words)

	Detection of Leaks
		For controlled detection of imperfect seals and moisture entry openings in hermetically sealed components such as transistor casings, it is desirable to enclose a clathrate compound containing an inert radioactive gas and later heat and sense the outer casing areas for radioactivity denoting escaping gas.
		A clathrate compound is one in which gases (usually inert, or noble gases) are physically trapped in a crystal lattice.
		In cases where it is not possible to use a radioactive gas, the use of clathrate compounds in conjunction with mass spectrometry also offers the advantage of having a controllable source of gas within the component.
	www.priorartdatabase.com /IPCOM/000097512 (327 words)

	Compound clathrate hydrate on Titan's surface
		Large-scale multicomponent (compound) clathrate hydrate formation is stable relative to water ice on the surface of Titan.
		Compound clathrate hydrates are nonstoichiometric crystal of guest molecules trapped inside cages of varying sizes formed by latticeworks of water molecules.
		Compound hydrate is a likely sink for many chemicals occurring on Titan's surface, including ethane, xenon, and other preferred clathrate formers.
	www.agu.org /pubs/crossref/2005/2005JE002435.shtml (194 words)

	Compound could make hydrogen fuel storage more efficient, practical
		The father-daughter team synthesized compounds made of hydrogen and water, hydrogen and methane, and hydrogen and octane in a diamond-anvil cell, which researchers often use to simulate the high pressures found far beneath Earth’s surface.
		The compound that holds the most promise for hydrogen storage, called a hydrogen clathrate hydrate, was synthesized at pressures between 20,000 and 30,000 atmospheres and temperatures of minus 207 degrees Fahrenheit.
		The hydrogen clathrates that the Maos synthesized in the laboratory could have formed naturally under the temperature and pressure conditions expected to prevail inside these Jovian moons, Wendy Mao said.
	chronicle.uchicago.edu /040122/hydrogen.shtml (572 words)

	Natural Gas Hydrates: Overview
		Natural gas hydrates are a curious kind of chemical compound called a clathrate.
		Clathrates consist of two dissimilar molecules mechanically intermingled but not truly chemically bonded.
		Smelik, Eugene A.; King, H. Jr., 1997; Crystal-growth studies of natural gas clathrate hydrates using a pressurized optical cell.
	www.uwgb.edu /dutchs/PETROLGY/Clathrate-0.HTM (728 words)

	Sciencemadness Discussion Board - Powered by XMB
		The compounds described by the patent are truly exceptional energetic materials, quite unlike the ordinary picrate salts which are poor initiators by comparison.
		The molecular weight for the clathrate compound of example 5 is 9311.85, while the variation I made has a molecular weight of 9603.08.
		The clathrate complex has a very low solubility and so its crystal development is a bit sluggish, and requires the very gradual, steadily maintained and controlled reaction conditions be followed as described for best results.
	www.sciencemadness.org /talk/viewthread.php?tid=501 (2702 words)

	section1.htm
		The methane clathrate remained a laboratory oddity until in the early 1980’s the Russians became aware of just how much of this material was present in Northern Siberia and started to develop methods of extracting it.
		At the moment, exploitation is restricted to land based extraction – either, the pressure is deliberately reduced by drilling and the methane is released or heated water or steam is injected and raises the temperature.
		Methane hydrate is a crystalline clathrate compound in which methane gas molecules are trapped in water cages which form part of a distorted ice matrix.
	www.ijvs.com /volume6/edition1/section1.html (5777 words)

	Experimental Mineralogy on the Sea Floor
		Clathrate hydrates are considered to be one possible answer to the question of how humans could benignly re-package (sequester) the CO that we now dump in such huge abundance into the atmosphere due to the burning of carbon-based fossil fuels.
		Clathrate hydrates are minerals that occur naturally on the sea floor, most commonly as methane (i.e., CH, natural gas) clathrate hydrate.
		These data will provide a means of evaluating the long-term stability of the clathrate and its rate of conversion to dissolved CO in seawater.
	www.brynmawr.edu /Acads/Geo/geology/alumnae/JDP.html (873 words)

	Methane Hydrate
		The compound decomposed to ice and gas as expected in all experiments except those that involved rapid depressurization at temperatures from 240 to 270 K (Figure 3).
		Even after the pressure drop, the methane hydrate was "preserved" as a compound for as long as 25 hours before it decomposed.
		Although methane hydrate is not as strong as rock, the data may be good news for the stability of the deposits.
	www.llnl.gov /str/Durham.html (1276 words)

	Noble gas compound - Wikipedia, the free encyclopedia
		This results in an ionization energy low enough to form stable compounds with the most electronegative elements, fluorine and oxygen.
		Prior to 1962, the only isolated compounds of noble gases were clathrates (including clathrate hydrates).
		The range of compounds is impressive, running into the thousands and involving bonds between xenon and oxygen, nitrogen, carbon, and even gold, as well as perxenic acid, several halides, and complex ions; a range of compounds seen in the neighbouring element Iodine.
	en.wikipedia.org /wiki/Noble_gas_compound (955 words)

	Institut für Mineralogie
		Gies, H., H. Gerke, F. Liebau: Chemical composition and synthesis of melanophlogite, a clathrate compound of silica.
		Gerke, H., H. Gies: Studies on Clathrasils IV: Crystal structure of dodecasil 1H, a synthetic clathrate compound of silica.
		Gies, H.: Studies on clathrasils VII: A new clathrate compound of silica: Synthesis, crystallographic, and thermal properties.
	www.ruhr-uni-bochum.de /mineralogie/homepage/gies/gies.htm (1913 words)

	Fish Attractant Patents
		PURPOSE: To enable prolongation of a useful period of a fishattractant material, by pelletizing powder of a cyclodextrin clathrate compound of thefishattractant material using metallic soap, liquid paraffin, etc.
		CONSTITUTION: Thisfish attractant material is formed by granulating powder of a cyclodextrin clathrate compound of afish attractant material with any of (1) metallic soap and liquid paraffin, (2) metallic soap and polyethylene wax or (3) metallic soap, liquid paraffin and polyethylene wax into the form of pellets.
		PURPOSE: To obtain an excellentfish attractant, by compounding a fish bait component with fiber powder and a carboxymethylcellulose alkali metal salt.
	www.fishingpatents.com /japan-fish-attractant-patents.shtml (1231 words)

	Synthesis and Characterization of Fullerene-like Ba_xGe_46 Clathrate Compounds (Site not responding. Last check: 2007-10-29)
		A new fullerene-like binary Ba_xGe_46 clathrate compound has been synthesized by RF induction heating of Ba and Ge.
		X-ray and electron diffraction studies show that the compound is composed of face-sharing Ge_20 dodecahedra and Ge_24 tetrakaidecahedra, with the Ba atoms encapsulated by the Ge cages.
		A dodecahedron with 12 pentagons is the smallest fullerene structure and has not been observed in the carbon fullerenes.
	flux.aps.org /meetings/YR97/BAPSMAR97/abs/S2250011.html (168 words)

	Structural, Chemical, and Transport Properties of a New Clathrate Compound: Cs8Zn4Sn42 (Site not responding. Last check: 2007-10-29)
		The synthesis and structural, chemical, and transport properties of a new clathrate compound with elemental composition Cs Zn
		This "rattling" of the Cs contributes to the low thermal conductivity of this compound, obtained on a polycrystalline pellet.
		Electronic properties and the potential of this type of Sn-clathrate for thermoelectric applications are also discussed.
	pubs.acs.org /cgi-bin/jtext?cmatex/11/i09/abs/cm990164i (201 words)

Try your search on: Qwika (all wikis)