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Topic: Propionaldehyde

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	Propionaldehyde [factsheet]
		* Exposure to propionaldehyde may occur from ambient air, where it is released from manufacturing facilities, from municipal waste incinerators, and from the combustion of wood, gasoline, diesel fuel, and polyethylenes.
		* The odor threshold for propionaldehyde is 1 ppm.
		* Propionaldehyde is used in the manufacture of plastics, in the synthesis of rubber chemicals, and as a disinfectant and preservative.
	www.lakes-environmental.com /toxic/PROPIONALDEHYDE.HTML (405 words)

	Propionaldehyde \| Technology Transfer Network Air Toxics Web site \| US EPA
		Propionaldehyde is used in the manufacture of plastics, in the synthesis of rubber chemicals, and as a disinfectant and preservative.
		Exposure to propionaldehyde may occur from ambient air, where it is released from manufacturing facilities, from municipal waste incinerators, and from the combustion of wood, gasoline, diesel fuel, and polyethylenes.
		Acute animal tests in rats and mice have shown propionaldehyde to have moderate acute toxicity from inhalation, oral, and dermal exposures.
	www.epa.gov /ttn/atw/hlthef/propiona.html (473 words)

	Spectrum Laboratories : Chemical Fact Sheet - Cas # 123386
		Propionaldehyde is a highly volatile compound that is emitted to air from arboreous
		Koc (4 to 50), propionaldehyde is not expected to bioconcentrate or partition from the water
		Propionaldehyde was detected in the gaseous phase among the atmospheric
	www.speclab.com /compound/c123386.htm (897 words)

	Propan-1-ol - Wikipedia, the free encyclopedia
		gives only a 36% yield of propionaldehyde, and therefore for this type of reaction higher yielding methods using PCC or the Swern oxidation are recommended.
		1-Propanol is manufactured by catalytic hydrogenation of propionaldehyde.
		The propionaldehyde is itself produced via the oxo process, by hydroformylation of ethylene using carbon monoxide and hydrogen in the presence of a catalyst such as cobalt octacarbonyl or a rhodium complex.
	en.wikipedia.org /wiki/Propan-1-ol (347 words)

	The health- and addictive effectes due to exposure to aldehydes of cigarette smoke. Part 1; Acetaldehyde, Formaldehyde, ...
		In the desk study presented here, health effects and possible addictive effects of aldehyde exposure due to cigarette smoking are discussed.
		In the light of currently available literature the health effects of exposure to acetaldehyde, formaldehyde, acrolein and propionaldehyde were assessed.
		All aldehydes cause pathological damage to the respiratory tract and reach high peak concentrations in the respiratory tract during smoking.
	www.rivm.nl /bibliotheek/rapporten/650270003.html (379 words)

	Heterogeneous reactions of volatile organic compounds on oxide particles of the most abundant crustal elements: Surface ...
		Oxide particles composed of the most abundant elements present in the Earth’s crust were used to identify potentially important reactions of VOCs on mineral dust.
		However, on the more basic and acidic oxides investigated, the data show that these carbonyl compounds irreversibly adsorb and can, in part, react on the surface to form larger molecular weight compounds.
		The kinetics of the heterogeneous reaction of acetaldehyde, acetone, and propionaldehyde on α-Al
	www.agu.org /pubs/crossref/2001/2000JD900573.shtml (395 words)

	Chemistry 245 Home Page - Answers: Problem 3 (Site not responding. Last check: 2007-11-02)
		Since the reaction reqiures a 1:1 ratio of propionaldehyde and methyllithium, you need equal amounts of each to make the reaction go to completion.
		However, there is a smaller amount of propionaldehyde than methyllithium, so the propionaldehyde is the limiting reagent.
		Part B: Since the limiting reagent in this reaction is propionaldehyde, and there is one mole of 2-butanol produced for each propionaldehyde used, the number of moles of 2-butanol produced will be equal to the number of moles of propionaldehyde.
	www.chem.arizona.edu /courses/chem245/set3q3an.html (180 words)

	ChemVip-Product-Propionaldehyde (Site not responding. Last check: 2007-11-02)
		Propionaldehyde is a colorless liquid with a pungest characteristic "aldehyde" odor.
		Propionaldehyde is a raw material for n-propanol, propionic acid and trimethylolethane.
		Consumption for trimethylolethane is small compared to that for the other two products.
	info.chemvip.com /chemvip-product-propionaldehyde.htm (51 words)

	Propionaldehyde - toxicity, ecologicial toxicity and regulatory information
		Propionaldehyde - Identification, toxicity, use, water pollution potential, ecological toxicity and regulatory information
		There may be other diseases and chemicals that have similar symptoms.
		If the victim has collapsed or is unconscious, call 911.
	www.pesticideinfo.org /Detail_Chemical.jsp?Rec_Id=PC37607 (718 words)

	Excitation and decay spectra of core-excited resonances in acetaldehyde, propionaldehyde and acetone
		Excitation and decay spectra of core-excited resonances in acetaldehyde, propionaldehyde and acetone
		Monochromatic synchrotron radiation was used to selectively excite core electrons of the carbon and oxygen atoms in acetaldehyde, propionaldehyde and acetone, creating neutral core-excited resonance states.
		Electron energy spectra associated with autoionization of the strong resonances in these molecules were collected.
	stacks.iop.org /0953-4075/32/5711 (277 words)

	Protein Content of Polyhedral Organelles Involved in Coenzyme B12-Dependent Degradation of 1,2-Propanediol in ...
		with the conversion of 1,2-PD to propionaldehyde by Ado-B
		diol dehydratase catalyzes the conversion of 1,2-PD to propionaldehyde,
		The proposed function of the organelles is to protect cytoplasmic components from the cytotoxic effects of propionaldehyde.
	jb.asm.org /cgi/content/full/185/17/5086 (5139 words)

	PROPIONALDEHYDE
		Carbon dioxide and carbon monoxide may form when heated to decomposition.
		When released into the soil, this material may evaporate to a moderate extent.
		This MSDS has been prepared according to the hazard criteria of the Controlled Products Regulations (CPR) and the MSDS contains all of the information required by the CPR.
	www.jtbaker.com /msds/englishhtml/p6621.htm (1169 words)

	Cosmetic fragrances inventory by chemical name: A
		Inventory of fragrance ingredients (perfume and aromatic raw materials) by chemical name, starting with: A
		a - methyl - 1,3 - benzodioxole - 5 - propionaldehyde
		a,a,6,6 - tetramethylbicyclo(3.1.1)hept - 2 - ene - 2 - propionaldehyde
	www.fpinva.org /Composition/EU.fragalfa.htm (839 words)

	Harvard Center for Neurodegeneration & Repair (Site not responding. Last check: 2007-11-02)
		Okamoto S, Teng X, Fujii S, Takayama Y, Sato F. An Allyltitanium Derived from Acrolein 1,2-Dicyclohexylethylene Acetal and (h2-Propene)Ti(O-i-Pr)2 as a Chiral Propionaldehyde Homoenolate equivalent that Reacts with Imines with Excellent Stereoselectivity.
		Teng X, Takayama Y, Okamoto S, Sato F. Development of a Chiral Propionaldehyde Homoenolate Equivalent Which Reacts with Imines with Excellent Stereoselectivity.
		Development of a Chiral Propionaldehyde Homoenolate Equivalent Which Reacts with Imines with Excellent Stereoselectivity.
	www.hcnr.med.harvard.edu /programs/lddn/tony.php (221 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations
		Energy Citations Database (ECD) Document #5204007 - Reaction of propionaldehyde over Rh-Y zeolite
		Availability information may be found in the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or via the "Full-text Availability" link.
		During the desorption of propionaldehyde from the Rh-Y zeolite into a He-CO(10%) stream, the concentration of propionaldehyde decreased with desorption time.
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=5204007 (151 words)

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