How To Use Hexane In A Sentence
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It turns out that the reactivity of an alkyl hydrocarbon like butane, pentane, hexane, et. al. goes up with increasing molecular weight, primarily because there are more carbon groups.
Taking Your Lumps
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The emissions involved elevated releases of cyclohexane, a material similar to gasoline used at the plant to make caprolactam-a raw material for nylon.
The Augusta Chronicle
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Catalytic hydrogenation adds six hydrogen atoms to produce cyclohexane, a colorless liquid with the properties of an alkane.
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The article brief the origin of hexane and stress the method of industrial separation.
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Solvents permitted in the UK for extraction include acetone, hexane, ethyl acetate, ethyl alcohol, and carbon dioxide.
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INGENIO RIOPAILA Location: La Paila, Colombia Year: 1990 Scope of the job: "Turn key" project Name of project: Anhydrous ethanol plant using cyclohexane as entrainer Capacity:
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The residue was redissolved in 0.5 ml of hexane and analysed by gas-liquid chromatography.
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Benzene from which every trace of thiophene has not been eliminated cannot be transformed into cyclohexane.
Paul Sabatier - Nobel Lecture
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A physical and distillation method was applied to the separation of an isopropanol - cyclohexane andisopropanol liquids.
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Cornucopia, an organic industry watchdog, first investigated the use of these "novel" nutritional oils, derived from soil fungus and algae, in infant formula, because they are extracted using a neurotoxic chemical, hexane, which is explicitly banned in organic production.
Foodconsumer.org
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Benzene from which every trace of thiophene has not been eliminated cannot be transformed into cyclohexane.
Paul Sabatier - Nobel Lecture
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We do know that the liquid gas, actually, the chemical that was being carried, cyclohexane, which was burning, going up to the air.
CNN Transcript Jan 16, 2007
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Surprisingly, the company claims that it does no longer use n-hexane, which is a banned substance that workers stated caused death and paralysis of employees.
Softpedia - Windows - All
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He was an outstanding young organic chemist, and I was glad to have him as a supervisor of my work on cyclohexane diols.
Michael Smith - Autobiography
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The results indicate that the molar fraction of the comonomer 1-hexene of 1-hexane LLDPE is lower than that of 1-butene of its counterpart with similar density and melt flow rate.
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Industrially, benzene is used in the manufacture of nylon, phenol, styrene (and by polymerization polystyrene), and cyclohexane.
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Industrially, benzene is used in the manufacture of nylon, phenol, styrene (and by polymerization polystyrene), and cyclohexane.
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Also playing a role is the recession-linked drop in demand for benzene's downstream products such as styrene, cumene, cyclohexane and aniline.
Purchasing - Top Stories
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The supposed formula for "phthalates" was instead for an organic phosphate, while the formulas for PBA and PBDE showed cyclohexane rings instead of the correct benzene rings.
Subprime Woes and Wall Street’s Tumble
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Iodine is virtually insoluble in water but it will readily dissolve in cyclohexane.
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In summary, the sample was denatured with aqueous ammonium sulfate and ethanol and was extracted with hexane.
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Photolysis rate of OCDD and OCDF in n - hexane solvent fit a first - order reaction.
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Many workers have contributed to the development, but in our opinion your work on the cyclohexane system is of outstanding importance.
Nobel Prize in Chemistry 1969 - Presentation Speech
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Wintek has said it used hexyl hydride, also called n-hexane, from May 2008 to August 2009, but stopped after discovering it was making workers ill.
Reuters: Top News
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The hexane fraction ( AH ) of dehulled adlay also showed a hypolipidemic effect.
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Solvents permitted in the UK for extraction include acetone, hexane, ethyl acetate, ethyl alcohol, and carbon dioxide.
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Its solubility is very high in polar organic solvents as well as in benzene but it is only sparingly soluble in aliphatic or alicyclic organic solvents like hexane and cyclohexane.
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After evaporating the chloroform under a stream of nitrogen, the samples were redissolved in cyclohexane and lyophilized.
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The letter specially mentioned the poisonous N-Hexane is inherently toxic and Chinese law prohibits its use.
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The initial story about the strike mentioned the dispute over pay but also the workers 'outrage over alleged deaths suffered by their coworkers due to prolonged exposure to a chemical called hexane, which is used for cleaning touch panels.
The Unofficial Apple Weblog (TUAW)
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They then adopt a more rational approach for the rest, with pentane, hexane, heptane, octane and onwards in Greek.
On twoth
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Therefore it would be best to remove the oil with solvents such as hexane or by cold pressing with an oil expeller.
2. Survey of neem-processing methods
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They can contain chemicals such as acrylate, peroxides, bisphenol, formaldehyde, hexane, hydroquinone, phenol, polyurethane, silane, toluene, and xylene, some of which have been suspected of toxicity.
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China, has said it used hexyl hydride, also called n-hexane, from May 2008 to August 2009, but stopped after discovering it was making workers ill.
The Guardian World News
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Solvents permitted in the UK for extraction include acetone, hexane, ethyl acetate, ethyl alcohol, and carbon dioxide.
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Some manufacturers use toxic chemicals like hexane or acetone and are not required by the Food and Drug Administration to list them on the label if they account for less than 2 percent of ingredients.
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A long list of volatile organic compounds, or VOCs [including benzene, xylene, hexane, heptane, octane, decane, trichloroethylene (TCE), and methylene chloride], have been shown to cause illnesses in people who are exposed to the compounds in indoor spaces.
THE MEDICAL NEWS
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Ligroin is a common solvent used in reactions which consist mostly of mixed hexanes.
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(pure) carbon monoxide ethyl acetate n-butene n-butyl alcohol gasoline n-hexane
8. Lighting Fittings
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In a preferred embodiment of the process of the present invention, the cycloparaffin is cyclohexane or cyclododecane.
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Which solvent would be best solvent (methylene chloride, acetone, or hexane) for bromobenzene and p-xylene?
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The methanol extract was evaporated and partitioned with n-hexane, benzene, trichloromethane, ethyl acetate and n-butanol, consecutively.
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The alcohol stream is next distilled, first to give a 95: 5 ethanol: water mix and, if required, redistilled with a water-entraining agent such as benzene or cyclohexane to give anhydrous ethanol.
1 Production and Use
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In the middle of the membrane, the acyl chains are in high disorder, resembling liquid hexane.
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Chloroform was removed from measured amounts of C6PS, C6PG, and C6PC stocks using a stream of nitrogen, and the lipid samples were dissolved in cyclohexane and lyophilized overnight.
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Hexane is listed as a hazardous air pollutant with the Environmental Protection Agency (EPA), according to the report, which called hexane the "dirty little secret of the 'natural' soy foods industry.
Democratic Underground Latest Breaking News
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Professor Jessop is trying to get rid of the use of volatile chemicals such as hexane by giving industries an option to use a manufacturing process that is both economically and environmentally friendly.
D Mag - News
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Incidentally, the term ‘pure essential oil’ (as claimed by the producers) is a misnomer because the highly toxic petrochemical solvent hexane is involved in the extraction process.
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The hexane extract was evaporated, redissolved in chloroform and passed through a short silica gel column.
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Although AVB has been shown to be relatively photostable in the polar protic solvent isopropanol it was relatively photolabile in the nonpolar solvent cyclohexane.
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But hexane is an air pollutant, and its release is regulated by the U.S. Environmental Protection Agency.
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It is supposed to be extra pure, but some believe that it is often adulterated with much cheaper, commercial, hexane, which is not pure and contains various hazardous substances such as the toxic benzene.
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The results indicate that the molar fraction of the comonomer 1-hexene of 1-hexane LLDPE is lower than that of 1-butene of its counterpart with similar density and melt flow rate.
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And so, Kelley knew just what to do as 128.3 tons of vaporized poisons - including sulfur dioxide, hexane, carbon monoxide, isobutane - began sifting earthward.
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The initial preparation uses a chemical solvent such as hexane, a by product of crude oil distillation, or super critical carbon dioxide SCCD.
Archive 2008-05-01
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Oslo dealt with inorganic chemistry, but from 1930 onwards his work was concentrated on problems connected with molecular structure, particularly the structure of cyclohexane and its derivatives and other substances containing six-membered rings related to that of cyclohexane.
Odd Hassel - Biography
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The bond angles in cyclohexane are 109.5 degrees, the regular unstrained tetrahedral angle.
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The tissue was homogenized in a mixture of acetone and hexane.
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My body also carries organochlorine pesticides, some with names you may recognize (DDT, Chlordane, Mirex) alongside others that are less familiar (including Hexachlorobenzene, beta-hexachlorocyclohexane, Oxychlordane, t-Nonachlor, Heptachlor epoxide).
THE STORY OF STUFF
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Decisive success came at the end of 1900 when, with Senderens, I found that benzene can be totally changed into cyclohexane in contact with nickel at a temperature of about
Paul Sabatier - Nobel Lecture
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The hexane was evaporated under a gentle stream of nitrogen gas before adding 0.1 ml of ethyl ether and 0.1 ml 0.1 M of KOH in methanol and heating the samples for 5 min at 50°.
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The article brief the origin of hexane and stress the method of industrial separation.
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The sceond hexane wash may be decanted off and the wet solid screened.
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After the plasma was treated in a water bath at 60 [degrees] C for 30 min, the lipid extraction was done with Hydromatrix, a diatomite, in isopropanol and n-hexane.
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Extra chemical agents are usually added to the solution: detergents such as octyl thioglucoside, octyl glucoside, octyl glucopyranoside, organic solvents such as pentane, hexane, or other chemicals such as glucose or glycerol.
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When nothing is known about the mixture being separated, the column is prepared in ligroin or hexane, the least polar of the eluting solvents.
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Examples of straight-chain molecules are methane, ethane, propane, and butane (gases containing from one to four carbon atoms), and pentane and hexane (liquids with five to six carbon atoms).
Hydrocarbon chemistry
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The researchers used methanol, chloroform, hexane, or water to extract residues from pot sherds.
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While I knew this kind of chemistry was much more difficult than the cyclohexane stereochemistry in which I was trained, I wrote to him and was awarded a fellowship after an interview in London with the Director of the British
Michael Smith - Autobiography
