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Topic: Cyclohexanol

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	Process for manufacture of cyclohexanol from phenol - Patent 4410741
		In the process of phenol hydrogenation to cyclohexanol, improved yields of cyclohexanol are obtained by maintaining a hydrogen atmosphere throughout the entire operation.
		In the batch-type method of manufacture of cyclohexanol by the hydrogenation of phenol in the presence of a nickel catalyst in an amount of about 2 to 10 percent by weight catalyst, at a temperature of from about 100.degree.
		This invention is an improvement in the method of manufacture of cyclohexanol by hydrogenation of phenol in the presence of a nickel catalyst in an amount of about 2-10 percent by weight catalyst at a temperature of from about 100.degree.-200.degree.
	www.freepatentsonline.com /4410741.html (843 words)

	Genetic Analysis of a Gene Cluster for Cyclohexanol Oxidation in Acinetobacter sp. Strain SE19 by In Vitro ...
		the cyclohexanol oxidation pathway and is needed for the expression
		for the induction of the cyclohexanol oxidation pathway.
		Cyclohexanol was added to the culture medium as the substrate for the cloned pathway.
	jb.asm.org /cgi/content/full/182/17/4744 (5517 words)

	Amino Acid Decarboxylation Catalyzed by 2-Cyclohexen-1-One - [www.rhodium.ws]
		Strangely, the decarboxylation rate gradually decreased in proportion to increase in the purity of the cyclohexanol.
		However, with 98.1% purity cyclohexanol, the reaction was completed in 7 h by the addition of only 3% peroxide.
		The solubility of the α-amino acid to cyclohexanol is an important factor affecting the rate of decarboxylation.
	www.erowid.org /archive/rhodium/chemistry/trp.decarbox.enone.html (1063 words)

	[No title] (Site not responding. Last check: 2007-10-24)
		The overall idea was to remove the hydrozide ion from the cyclohexanol and create an oily (and very smelly) cyclohexene.
		When this was performed in lab I started with 7.40 grams of cyclohexanol and after running two distillations I gained a final product of 2.5231 grams of product for a percent yield of 41.5%.
		If cyclohexanol were present in the solution one would expect to find OH bonds; most likely one will see them in the form of O2.
	gladstone.uoregon.edu /~jrhea/Labreports/lab_Report03.doc (709 words)

	Permanganate Oxidation of Cyclohexane, Cyclohexene, and Cyclohexanol (Site not responding. Last check: 2007-10-24)
		Purple alkaline potassium permanganate is treated with cyclohexane, cyclohexene, and cyclohexanol.
		Oxidation of cyclohexene and cyclohexanol is revealed by the formation of the green manganate ion.
		The secondary alcohol cyclohexanol is oxidized by permanganate to give the ketone cyclohexanone.
	jchemed.chem.wisc.edu /JCESoft/CCA/CCA5/MAIN/1ORGANIC/ORG05/TRAM05/A/0171503/THUMBS.HTM (90 words)

	[No title] (Site not responding. Last check: 2007-10-24)
		The dehydration of alcohols using strong mineral acids, such as sulfuric acid or phosphoric acid, as catalysts is a general laboratory method for preparing alkenes.
		Any unreacted cyclohexanol (the starting material) and phosphoric acid (the catalyst) are left in the distilling flask because of their high boiling points (161°C and 213°C, respectively).
		Using graduated pipets, place 2.0g (2.1 mL, 0.020 mole) of cyclohexanol and 0.8 mL of 85% phosphoric acid along with 1 or 2 boiling chips in the distillation flask and mix thoroughly.
	chemlab.pc.maricopa.edu /labbooks/cyclohexene.html (755 words)

	Cyclohexanol - Environmental Monitoring Technology
		EMT's Cyclohexanol Monitoring Kit includes one monitoring badge, detailed instructions, a monitoring information form, and a shipping label.
		They are designed to provide you with the ability to check exposure levels to Cyclohexanol.
		OSHA Permissible exposure limit (PEL) for cyclohexanol is 50 ppm, 200 mg/m3
	www.emt-online.com /ProductPages/Cyclohexanol.htm (137 words)

	Cyclohexane Degradation Pathway
		One gene cluster encodes enzymes involved in oxidation of cyclohexane to cyclohexanol.
		The enzyme catalyzing this reaction is found to be homologous to butane monooxygenase, encoded by the bmo gene operon, whose nucleotide sequence is reported (Sluis et al., 2002).
		The second larger cluster of genes encodes all the enzymes required for oxidation of cyclohexanol to adipate.
	umbbd.msi.umn.edu /chx/chx_map.html (251 words)

	Adipic Acid from Cyclohexanol (Site not responding. Last check: 2007-10-24)
		Adipic acid may be prepared directly from cyclohexanol by oxidation with nitric acid.
		This is a very exothermic reaction and care must be taken not to add the cyclohexanol too fast to the nitric acid.
		Add the cyclohexanol to the hot stirred nitric acid solution at a rate of only one drop every thirty seconds.
	acad.udallas.edu /chemdept/hendrickson/3121/adipic_acid_from_cyclohexanol.htm (221 words)

	Kinetics and Mechanism of Cyclohexanol Dehydration in High-Temperature Water
		We examined cyclohexanol dehydration in pure water at temperatures of 250, 275, 300, 350, and 380
		Under these conditions, cyclohexanol dehydrates readily in the absence of added catalysts to form cyclohexene as the major product.
		The experimental results implied a reaction mechanism that comprises two pathways: (1) reversible cyclohexanol dehydration to form cyclohexene through an E2 mechanism, and (2) subsequent cyclohexene protonation to form the cyclohexyl cation, which rapidly rearranges to form methyl cyclopentyl cations, which then lose a proton to form methyl cyclopentenes.
	pubs.acs.org /cgi-bin/abstract.cgi/iecred/2001/40/i08/abs/ie000964z.html (333 words)

	Lab 4: Dehydration of Cyclohexanol (Site not responding. Last check: 2007-10-24)
		In this lab, we were concerned with the acid-catalyzed dehydration of cyclohexanol to yield cyclohexene and water.
		Adding an excess of cyclohexanol isn't economically feasible, but it is relatively easy to remove the products by distillation.
		A consequence of this equilibrium in the particular case of dehydration is that the product cyclohexene must be kept as dry as possible, because any time that it comes in contact with water and even a trace of acid it will revert back to the starting material.
	tigger.uic.edu /~shevlin/academics/fall03/lab4.html (322 words)

	MOPAC-QM-SemiEmpirical
		Task: Optimize the geometry of cyclohexanol using PM5.
		The images in this lesson use the axial cyclohexanol built in an earlier module.
		Open the molecule of cyclohexanol with the OH group in the axial position, select FileOpen "
	chemed.chem.pitt.edu /cacc/CACheTutorial/MOPAC_QM_SemiEmpirical.htm (111 words)

	OPTIMIZATION OF THE OPERATION OF A CYCLOHEXANOL REACTOR (Site not responding. Last check: 2007-10-24)
		This work presents one part of an extensive study of Computer Aided Process Operation developed to a very complex multiphase industrial reactor that takes place an catalytic hydrogenation of phenol to cyclohexanol.
		The cyclohexanol is an intermediate to nylon production.
		The cyclohexanol is produced in Rhodia Brasil Ltda unit in Paulínia.
	www.unl.edu.ar /cepac/abstract/abmaciel.htm (432 words)

	Cyclohexanol Degradation Pathway (Site not responding. Last check: 2007-10-24)
		It can degrade cyclohexanol to adipate and utilize the energy generated in this process.
		A similar pathway is also illustrated in the KEGG database.
		The following is a text-format cyclohexanol degradation pathway map.
	dwb.unl.edu /Teacher/NSF/C11/C11Links/www.labmed.umn.edu/umbbd/chx/chx_map.html (125 words)

	[No title]
		It is believed that the adsorption equilibrium constant for cyclohexanol is around 1 and is roughly one or two orders of magnitude greater than the adsorption equilibrium constants for the other compounds.
		From runs 4-5, we see that when the partial pressures of cyclohexanol and steam are held constant, and the partial pressure of cyclohexene increase, the reaction rate decreases.
		From runs 6-7, we see that when the partial pressures of cyclohexanol and cyclohexene are held constant, and the partial pressure of steam increases, the reaction rate decreases.
	www.eden.rutgers.edu /~benson/davidson's/problem10.doc (1622 words)

	Cyclohexanol - toxicity, ecologicial toxicity and regulatory information
		Cyclohexanol - 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=PC33513 (691 words)

	making alkenes in the lab
		The fact that the carbon atoms happen to be joined in a ring makes no difference whatever to the chemistry of the reaction.
		Cyclohexanol is heated with concentrated phosphoric(V) acid and the liquid cyclohexene distils off and can be collected and purified.
		Phosphoric(V) acid tends to be used in place of sulphuric acid because it is safer and produces a less messy reaction.
	www.chemguide.co.uk /organicprops/alkenes/making.html (442 words)

	Quiz
		Answer: a-Explanation: According to the Tables in the Handbook for Organic Chemistry Lab, cyclohexanol is an irritant and hygroscopic.
		The organic layer in this case is methylene chloride, which is more dense than water (look up the density in the Tables) and thus on the bottom in a separatory funnel.
		Answer: a-Explanation: The NMR spectra of cyclohexanol and cyclohexanone do not have protons at a ppm of greater than 4, and the given NMR has a singlet at 5.3 ppm, so the NMR shows that there is something in the sample that is neither cyclohexanone or cyclohexanol.
	orgchem.colorado.edu /labquizzes/oxal/oxalquizans.html (957 words)

	Isocamphyl cyclohexanol / Isobornyl cyclohexanol - Cas No. 3407-42-9 - (Sandalwood Aroma Chemical) made in Germany ...
		The ideal synthetic solution providing price advantage and stability as well as constant availability in standardized quality independent from naturally occurring fluctuations such as to be coped with in terms of natural sandalwood oil.
		An Isbornyl cyclohexanol similar to IBCH commonly found in the market but its approximate 7% active sandalwood isomers makes it feature the typical sandalwood odor paired with a stronger odoriferous and longer-lasting impact making it a superior material.
		Saminol P diluted in Isopropylmyristate to reduce viscosity and easing handling.
	www.tramaico.com /isobornylcyclohexanol.htm (231 words)

	Adipic Acid - Market Size, Market Share and Demand Forecast;
		Currently operating commercial production processes for adipic acid depend on the production or purchase of KA oil (a mixture of cyclohexanone, the ketone or K component, and cyclohexanol, the alcohol or A component), or of pure cyclohexanol, and its subsequent oxidation in solution to adipic acid using an excess of strong nitric acid.
		This report deals with KA oil/cyclohexanol production by various routes, followed by the common step of nitric acid oxidation.
		Production of KA oil from phenol is also covered, as is the Asahi process for cyclohexanol production from benzene via cyclohexene.
	nexant.ecnext.com /coms2/summary_0255-182_ITM (328 words)

	Excess Enthalpies for the Systems o-Xylene + Cyclohexanol + Phenol and o-Xylene + Cyclohexanol + 1,3-Butanediol at ... (Site not responding. Last check: 2007-10-24)
		Excess Enthalpies for the Systems o-Xylene + Cyclohexanol + Phenol and o-Xylene + Cyclohexanol + 1,3-Butanediol at 318.15 K
		) at 318.15 K are reported for two ternary systems, o-xylene + cyclohexanol + phenol and o-xylene + cyclohexanol + 1,3-butanediol, and for two constituent binaries formed by o-xylene with phenol and 1,3-butanediol.
		data for the o-xylene + cyclohexanol + 1,3-butanediol system.
	pubs.acs.org /cgi-bin/abstract.cgi/jceaax/1998/43/i03/abs/je970267m.html (161 words)

	CYCLOHEXANOL
		Ingredient CAS No Percent Hazardous --------------------------------------- ------------ ------------ --------- Cyclohexanol 108-93-0 100% Yes
		When released into the soil, this material is expected to readily biodegrade.
		----------------------------------------------- ----- --- ---- ----- Cyclohexanol (108-93-0) Yes Yes No Yes --------\Federal, State & International Regulations - Part 1\---------------- -SARA 302- ------SARA 313------ Ingredient RQ TPQ List Chemical Catg.
	www.jtbaker.com /msds/englishhtml/c7040.htm (1155 words)

	3,3,5-trimethyl cyclohexanol Registration
		3,3,5-trimethyl cyclohexanol - Registration, import consent and bans
		For detailed chemical information see the chemical detail page.
		03493 (CA DPR Chem Code), 116-02-9 (CAS Number), 116029 (CAS Number), 3,3,5-trimethyl cyclohexanol, 335trimethylcyclohexanol, 3493 (CA DPR Chem Code)
	www.pesticideinfo.org /Detail_ChemReg.jsp?Rec_Id=PC34669 (341 words)

	HIC-Up files for compound HOP (1s,2s,5s)2-(4-glutaridylbenzyl)-5-phenyl-1- cyclohexanol; oxy-cope-hapten
		HIC-Up files for compound HOP (1s,2s,5s)2-(4-glutaridylbenzyl)-5-phenyl-1- cyclohexanol; oxy-cope-hapten
		Search for "(1s,2s,5s)2-(4-glutaridylbenzyl)-5-phenyl-1- cyclohexanol" in the ChemDB compound database
		This page was created on Thu Aug 03 10:37:11 2006.
	xray.bmc.uu.se /hicup/HOP (335 words)

	[No title]
		Isobaric Vapor-Liquid Equilibria of the Ternary System Methylbutyl Ketone + Nonane + Cyclohexanol
		Isobaric vapor-liquid equilibria (VLE) were measured for the ternary system methylbutyl ketone + nonane + cyclohexanol and for the binary methylbutyl ketone + cyclohexanol.
		The modified Wilson model was used to correlate the binary T-x data and to predict VLE in the ternary system.
	www.boulder.nist.gov /div838/trc/journals/jced/2005v50/i02/je040002p.xml (75 words)

	Dehydrating Cyclohexanol
		Characterize cyclohexene by using ammonium cerium (IV) nitrate test, bromine test, infrared spectroscopy and/or refractive index.
		Add cyclohexanol, sulfuric acid, and phosphoric acid to the flask
		Distill the reaction mixture and collect the distillated in a receiver
	www.neiu.edu /~jhramire/cyclohexanol/prelab.htm (45 words)

	CHE 24 Lab - Dehydration of Cyclohexanol (Site not responding. Last check: 2007-10-24)
		C while the reaction apparatus is being set up.
		Place 2.0 g of cyclohexanol in a 5-mL conical vial.
		First Partner: Add 0.25 mL of 85% H
	web.centre.edu /muzyka/organic/lab/24_dehydration.htm (374 words)

	NTP: Testing Status: CYCLOHEXANOL 10529-L (Site not responding. Last check: 2007-10-24)
		Home >> Testing Information >> Testing Status of Agents at NTP >> Testing Status: CYCLOHEXANOL 10529-L
		Link to Data Search (Data are not available for all studies.)
		The National Toxicology Program is headquartered on the NIEHS campus in Research Triangle Park, NC.
	ntp-server.niehs.nih.gov /index.cfm?objectid=6DE01087-F1F6-975E-79375CFB13A2068E (76 words)

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