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Topic: Dodecanol

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	Dodecanol - Wikipedia, the free encyclopedia
		Dodecanol, also known by its IUPAC name 1-dodecanol or dodecan-1-ol, and by its trivial name dodecyl alcohol and lauryl alcohol, is a fatty alcohol.
		(CH Dodecanol is a colourless, water insoluble solid of melting point 24-27 °C and boiling point 260-262 °C. It has a floral odor.
		Dodecanol is used to make surfactants, lubricating oils, and pharmaceuticals.
	en.wikipedia.org /wiki/Dodecanol (106 words)

	Coadsorption of Tri-chain Surfactants and Dodecanol at a Hydrophobic Surface Studied by Sum-Frequency Spectroscopy (Site not responding. Last check: 2007-10-12)
		As the tri-chain concentration increases, adsorbed dodecanol is gradually displaced by the tri-chain surfactant.
		At a concentration of one third of the tri-chain critical micelle concentration (cmc), when the dodecanol coverage is approximately two-thirds of a full monolayer, the tri-chain has the same packing density as in the absence of dodecanol.
		The structure of the tri-chain and dodecanol surfactants in the mixed film is similar to that in the pure tri-chain and dodecanol monolayers, with the tri-chain showing significant conformational disorder in contrast to the highly orientated dodecanol.
	pubs.acs.org /cgi-bin/abstract.cgi/jpchax/1996/100/i01/abs/jp951607i.html (272 words)

	Experiment 7 - Procedure
		Determine the mass of the dodecanol burner by weighing it on a balance.
		Quickly re-light the dodecanol burner and place it under the flask centering the flame under the bottom of the flask.
		Determine the heat given off by the combustion of the vegetable oil twice, using the same procedure used to calibrate the calorimeter, except that the dodecanol burner should be replaced by the vegetable oil burner.
	science.csustan.edu /perona/2000/Exp7/proc.htm (613 words)

	Patent 6,344,211
		This deficiency restricts the use of dodecanol in polymeric matrices because the release rate of a substance from polymer matrices is the higher, easier it can diffuse, in as the matrix.
		Accordingly it is the object of the present invention to improve the release of auxiliary agents which are solid at room temperature from a matrix.
		In the present case, an auxiliary agent must be introduced that increases the absorption of medicinal agents by the skin, is solid at room temperature, and forms subcooled melts, for example, dodecanol or levulic acid.
	www.pharmcast.com /Patents/Yr2002/Feb2002/020502/6344211_Transdermal020502.htm (811 words)

	Ointment for concealing skin blemishes and scars - Patent 4853222
		An ointment according to claim 1, which comprises from 20 to 40% of greasy-waxy vehicles, from 55 and 75% of a powder and from 1.2.-3.1.% of additives.
		In its turn the term octyl dodecanol is used to indicate 2-octyl dodecanol (CAS 5333-42-6).
		As already indicated above, the amount of the greasy-waxy vehicle is preferably comprised from 20 to 40%, the powder percent is preferably from 55 to 75 and the additives are from 1.2 to 3.1.
	www.freepatentsonline.com /4853222.html (1584 words)

	The Enthalpy of Combustion of Vegetable Oil
		Determine the mass of the dodecanol lamp by weighing it on a balance.
		Determine the heat given off by the combustion of the vegetable oil twice, using the same procedure used to calibrate the calorimeter, except that the dodecanol lamp should be replaced by the vegetable oil lamp.
		Calibration: For each trial, calculate the heat liberated by the combustion of dodecanol, the heat absorbed by the water, and q in equation (7) which represents the heat liberated by the combustion of dodecanol, but not absorbed by the water.
	wwwchem.csustan.edu /chem1102/vegoil.htm (1261 words)

	Phase Transitions in Mixed Monolayers of Sodium Dodecyl Sulfate and Dodecanol at the Air/Water Interface (Site not responding. Last check: 2007-10-12)
		A two-dimensional phase transition has been studied in a mixed monolayer of sodium dodecyl sulfate (SDS) and dodecanol at the air/water interface by sum-frequency spectroscopy and ellipsometry.
		At low temperatures, a monolayer at the surface of a 6 mM solution containing 99.9% SDS and 0.1% dodecanol (w/w) is conformationally ordered and has a surface coverage comparable to that of a monolayer of pure dodecanol at the same temperature.
		The solid phase contains equimolar amounts of SDS and dodecanol while the liquid phase contains SDS and dodecanol in a ratio of approximately 3:2.
	pubs.acs.org /cgi-bin/abstract.cgi/jpcbfk/1998/102/i38/abs/jp9819689.html (218 words)

	EFFECT OF DODECANOL CONTENT ON THE COMBUSTION OF METHANOL SPRAY FLAMES - Begell House Inc. (Site not responding. Last check: 2007-10-12)
		The relatively large volatility difference between methanol and dodecanol provided an opportunity to examine the occurrence of microexplosions within spray flames.
		Evidence of microexploded droplets was revealed by a sudden decrease in droplet size and velocity, and an increase in number density at different spatial positions within the flame.
		On this basis, results were obtained that indicated the occurrence of microexplosions in the 75/25 mixture flame, but at a reduced extent as compared to prior results reported for methanol flames containing a larger fraction of dodecanol.
	www.begellhouse.com /journals/6a7c7e10642258cc,3f77f2ea2fc074eb,5e5a88d00e6154d6.html (281 words)

	Tim Davey: Surfactant chemist
		Above the cmc, dodecanol has little influence on the surface aggregate structure, probably because dodecanol is partitioned into the bulk micelles.
		Below the cmc, dodecanol causes a transition from hemicylindrical aggregates to a two-phase mixture in which flat sheets coexist with swollen hemicylindrical aggregates.
		Under conditions where hemicylinders and flat sheets coexist, an increase in bulk dodecanol concentration results in an increase in surface coverage by nat sheets.
	users.bigpond.net.au /timdavey/timwork/abstracts.htm (1735 words)

	Nonanesthetic Alcohols Dissolve in Synaptic Membranes without Perturbing Their Lipids -- Miller et al. 86 (3): 1084 -- ... (Site not responding. Last check: 2007-10-12)
		Here we show that both the anesthetic dodecanol and the nonanesthetic tetradecanol are taken up equally well into the tissues of animals and into isolated postsynaptic membranes.
		When a group of Rana pipiens tadpoles were treated with dodecanol, half were anesthetized by 4.7 µ M (free aqueous concentration), and the corresponding concentration in the tissues was found to be 0.4 mmol per kg wet weight.
		The lipid order parameter it reported was decreased by the anesthetic alcohols (octanol, decanol, and dodecanol), whereas the nonanesthetic alcohols either did not change it significantly (tetradecanol) or actually increased it (hexadecanol and octadecanol).
	intl.pnas.org /cgi/content/abstract/86/3/1084 (475 words)

	Fatty acid salt pesticidal composition - Patent 5631290
		an adjuvant selected from the group consisting of decanol, dodecanol and tetradecanol, the adjuvant being present ar a concentration ranging from about 0.02 to 0.1% by weight.
		Tobacco aphids, M. nicotianae, were obtained from a rearing facility and treated using the standardized aphid plate glass bioassay described in Example 8, and the data are illustrated in Table 10.
		It is understood that various modifications may be made to the invention described herein without departing from the intended scope of the claims.
	www.freepatentsonline.com /5631290.html (4266 words)

	Essential Oil of Astrodaucus persicus (Boiss.) Drude. from Iran Journal of Essential Oil Research: JEOR - Find Articles (Site not responding. Last check: 2007-10-12)
		The major components found in the oil were decanal (34.8%), dodecanal (15.5%) and dodecanol (14.3%).
		Aerial parts of the plant were collected from northeast of Tehran, around Khojir Park, in July 2000, at flowering stage.
		The list of compounds identified in the oil samples is presented in Table I. The oil was dominated by decanal (34.8%), dodecanal (15.5%) and dodecanol (14.3%), with lesser amount of decanol (9.3%) and carvacrol (8.6%).
	www.findarticles.com /p/articles/mi_qa4091/is_200409/ai_n9432471 (403 words)

	Zenitech - ZeniCare Systems for Skin Page
		Octyl Dodecanol is derived from colonut oil, and all waxes used in our process are USP quality and 100% pure.
		Oils derived from fruit, and nut oils, are cold-pressed to retain naturally occuring antioxidant and other attributes.
		Naturally-derived Octyl Dodecanol and wax react to form a product that melts at body temperature, has superb barrier qualities, outstanding skin feel, and excellent emolliency.
	www.zenitech.com /zenicare_skin.html (524 words)

	Analysis Programs for Neutron Reflection Studies
		where now 5, d, and w refer to sds, dodecanol and solvent, and in combination with (2) gives,
		If there are n components then there will be ½n(n +1) partial structure factors, (h1~) if sufficient reflectivity profiles are measured, using isotopic substitution to obtain the different values of b, then the different partial structure factors, ~ can be obtained.
		Table 2 0.0067M SDSIO.5% dodecanol, parameters determined from 2 layer model.
	www.isis.rl.ac.uk /largescale/crisp/documents/datareduction.htm (2169 words)

	Safety (MSDS) data for 1-dodecanol (Site not responding. Last check: 2007-10-12)
		Synonyms: dodecyl alcohol, 1-dodecyl alcohol, dodecyl-1-ol, lauryl alcohol, dodecanol
		Vapour pressure: 0.5 mm Hg at 20 C
		We have not verified this information, and cannot guarantee that it is up-to-date.
	physchem.ox.ac.uk /MSDS/DO/1-dodecanol.html (103 words)

	Salsa's super spice shows promise easing food posioning
		According to a recent study that compound could eventually become a tasteless food additive preventing infection.
		Researchers from University of California, Berkeley, and Mexico’s Autonomous University of Guadalajara found that coriander contains a chemical called dodecanol that is potent in fighting against several salmonella species.
		The authors of the study published in the Journal of Agricultural Food Chemistry said the amount of coriander consumed to protect against bacteria needed to be high but that salsa contains at least a dozen other less potent antibacterial compounds that may be beneficial
	www.newfarm.org /international/news/060104/060904/super_spice.shtml (244 words)

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