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Topic: Methyl acetylene

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Acetylene

Carbide

Oligomer

Dimer

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	Dual bed process using two different catalysts for selective hydrogenation of acetylene and dienes - Patent 7038097
		The method of claim 1 where the feedstock comprises acetylene and the acetylene conversion of the first hydrogenation catalyst is at least 50%.
		The method of claim 1 where the feedstock comprises methyl acetylene and the methyl acetylene conversion of the first hydrogenation catalyst is at least 50%.
		In another non-limiting embodiment of the invention, the conversion of the unsaturated compound (acetylene, methyl acetylene, propadiene, 1,2-butadiene, 1,3-butadiene, dimethyl acetylene, ethyl acetylene and mixtures thereof by this first hydrogenation catalyst is at least 50%, preferably at least 90%.
	www.patentmonkey.com /PM/patentid/7038097.aspx (9786 words)

	Methane - Wikipedia, the free encyclopedia
		O ⇌ CO Less significant methane-derived chemicals include acetylene, prepared by passing methane through an electric arc, and the chloromethanes (chloromethane, dichloromethane, chloroform, and carbon tetrachloride), produced by reacting methane with chlorine gas.
		However, the use of these chemicals is declining, acetylene as it is replaced by less costly substitutes, and the chloromethanes due to health and environmental concerns.
		Methyl group, a functional group similar to methane.
	en.wikipedia.org /wiki/Methane (1719 words)

	NIOSH Document: Pocket Guide to Chemical Hazards (2005-149) : Methyl acetylene-propadiene mixture \| CDC/NIOSH
		NIOSH Document: Pocket Guide to Chemical Hazards (2005-149) : Methyl acetylene-propadiene mixture
		MAPP gas, Methyl acetylene-allene mixture, Methyl acetylene-propadiene mixture (stabilized), Propadiene-methyl acetylene, Propyne-allene mixture, Propyne-propadiene mixture
		Colorless gas with a strong, characteristic, foul odor.
	www.cdc.gov /niosh/npg/npgd0393.html (176 words)

	Multifunctional Catalyst. Aldolization, Dehydration and Hydrogenation : Methyl Isobutyl Ketone (Site not responding. Last check: 2007-09-22)
		Aldolization, Dehydration and Hydrogenation : Methyl Isobutyl Ketone
		As a chemical intermediate, MIBK is used in the manufacture of rubber antiozonants, mainly N-(1,3-dimethylbutyl)-N -phenyl-p-phenylenediamine (6PPD) and reacts with acetylene to produce acetylenic diol nonionic surfactant used in inks, paints/coatings, adhesives, dyes/pigments and pesticides.
		MIBK is historically produced by a three-step process using acetone and hydrogen as feeds and proceeding via diacetone alcohol and mesityl oxide intermediates.
	www.rohmhaas.com /ionexchange/IP/mibk.htm (263 words)

	Dr. Robert E. Samuelson (Site not responding. Last check: 2007-09-22)
		Samuelson has been involved principally with the fields of radiative transfer, anisotropic multiple scattering, analysis of thermal infrared spectra of planetary atmospheres, and theoretical radiative equilibrium and cloud microphysics studies.
		He has been directly connected with the discovery of several molecules in various planetary atmospheres, including the molecular hydrogen dimer on Jupiter, methyl acetylene and propane on Saturn, and carbon dioxide and molecular hydrogen on Titan.
		He has initiated early investigations of the greenhouse effect on Venus and of methane supersaturation in the atmosphere of Titan, and has done extensive radiative transfer modeling of aerosol and cloud systems.
	www-lep.gsfc.nasa.gov /vitae/samuelson.html (330 words)

	Documentation for Immediately Dangerous to Life or Health Concentrations (IDLHs) - 74997
		Animal data: None relevant for use in determining the revised IDLH.
		Human data: It has been stated that methyl acetylene appears to be a general anesthetic with comparatively low toxicity [ACGIH 1991].
		Basis for revised IDLH: Since methyl acetylene appears to have relatively low toxicity [ACGIH 1991], the revised IDLH is 1,700 ppm based strictly on safety considerations (i.e., being 10% of the lower explosive limit of 1.7%).
	www.cdc.gov /niosh/idlh/74997.html (147 words)

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