industrial preparation of dimethyl_terephtalale and it's flow chart?
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Please check the following website for details\n\nhttp://www.scientificconsultingcompany.com/products.html
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http://www.hydrocarbons-technology.com/projects/snohvit/snohvit1.html
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For the plastic bottles: \n98-99% PET or PETE, polyethylene teraphthalate. The remainder consists of additives, mostly antioxidants and anti-clouding agents, used during PETE production.\n\nFor the glass bottles:\n0% in the glass, but 85-90% of the paint is petro-based.  And most glass manufacturers get 100% of the energy used to melt and form the glass from petroleum.
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http://www.eia.doe.gov/neic/infosheets/petroleumproducts.htm
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Although the economics would never qualify for an industrial process, there are a number of ways that this could be accomplished.   \n\nSince alkanes themselves are not very reactive, the first step would be to halogenate the methane.  This could be accomplished by reacting the methane with elemental bromine (Br2) with light to initate free radical halogenation.\n\nThere are a number of ways that the methyl bromide produced could be coupled.  \n\nReaction with elemental sodium, the "Wurtz reaction", would be the simplest.\n\nAnother method would be to prepare (CH3)2CuLi by first reacting the methyl bromide with Li to convert it into methyl lithium (CH3Li).   The methyl lithium could be converted into  \n(CH3)2CuLi by reaction with CuI.\n\n(CH3)2CuLi will react with methyl bromide to produce ethane.
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Could the bromine react with the iron to form FeBr3?  If I remember right, the Febr3 should make it easier to react with toluene (hence the iron catalyst).  I'm not sure about the math, but it seems like toluene was the excess reagent so FeBr3 shouldnt be leftover...\n\nDo you know if either of the distillation products are a bromotoluene?  From what you said, dibromotoluene could have come out.  Also, the methyl group has activating properties, so there will likely be more than one substitution, possibly even 3
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I would need more information about the chemicals in the factory, but...\n\nThis would include a regular check of temp charts, against approved limits and stock rotation etc.
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Hello,\n\nThe idea behind Job's method is to prepare a series of reaction mixtures (for example solutions) in which the total number of moles of the reactants is fixed but with different ratio. One then plots the number of moles of product vs the ratio. The maximum of the curve will occur at the correct stoichiometric ratio.\n\nIn your case, one could prepare solutions containing a total number of moles (i.e. moles of Ni + moles EDA) equal to 1 with the following composition:\n\nmoles Ni     moles EDA Ratio Ni/EDA\n0.9                0.1           9        \n0.8                0.2           4\n0.6                0.4          1.5\n0.4                0.6          0.666\n0.2                0.8          0.25\n0.0                1.0          0.0\n\nOne then needs to measure the amount of Ni-EDA complex and plot that amount agains the ratio. The maximum will tell you which is the right stoichiometric ratio. Hope this helps. See the web site below for a more complete explanation.\n\nOne then measures the
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I think you'll need to go to a university library or get a subscription to some online chemistry journals. Emil White, D. Mead Johnson Professor of Chemistry and faculty member in the Krieger School of Arts and Sciences at John's Hopkins was the first to synthesize it. Here's one promising reference:\nWhite, E.H., F. McCapra, G.F. Field, and W.D. McElroy, J.Am.Chem.Soc., 83,2402 (1961).\n\nHere's some leads:\nhttp://www.modares.ac.ir/sci/saman_h/Pages/Firefly.htm\nhttp://cas.bellarmine.edu/chem117a/lab/luminol.htm\nhttp://www.jbc.org/cgi/reprint/233/6/1528\nhttp://phot.allenpress.com/photonline/?request=get-document&doi=10.1562%2F0031-8655(2002)076%3C0153:TTMFPP%3E2.0.CO%3B2\nhttp://www3.interscience.wiley.com/cgi-bin/jhome/10009400\nhttp://www3.interscience.wiley.com/cgi-bin/jhome/4087
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Starting material:\nCH3CH2CHBrCH2Br ?\n\nProduct wanted:\nCH3CH2CH2CH=CHCH3 ?  Cis or Trans?\n\nIf the starting material is 1,2 Dibromobutane, then treating it with base (eg. NaNH2) will give:\n\n CH3CH2CHBr–CH2Br   +   base   ——>  CH3CH2CH=CHBr   +   base   ——>  CH3CH2C≡CH\n\nIf this is done with excess NaNH2 in liquid ammonia or dry diethyl ether, then the sodium salt will be produced:\n\n(CH3CH2C≡C)- Na+\n\n(CH3CH2C≡C)- Na+ + BrCH2CH3  ——>  CH3CH2C≡CCH2CH3 \n\nCH3CH2C≡CCH2CH3 when heated gives the more stable compound CH3CH2CH2C≡CCH3  (this is 2-hexyne).  The path will be different from here depending on if you want a cis or trans product.  A controlled catalytic addition (Lindlar catalyst) of H2 will give the Cis form.  Na in liquid ammonia will give the Trans.\n\nThere might be an easier way, but this path is a classic.
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I would just recommend looking at a can and seeing what is the propellant.  We could guess all day, but as long as we don't work in a silly string factory we couldn't be absolute.  Alot of that kinf od informations i proprietary.  But how about this:\nPropellant\nSomething that dries fast (isopropyl)\nA plasticizer to keep the goo gooey\nsome other stuff
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Try Edmund Scientific on the web..but if you want to make your own try the link provided.\n\nGood luck!
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Links at\n\nhttp://www.itt.edu/staff/boyter/links/index.html#CHEMISTRY_CHROMATOGRAPHY
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Spend some tim browsing this search engine specific to chemical industry\nhttp://www.icissearch.com/\nThey have most of the answers you're looking for.
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Dow Chemical Co. makes the polymer...contact them for a list of suppliers.\nIt is also available from some chemical supply houses and specialty polymer distributors...try M2 Polymer Technologies, eg.
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Well number 10 is\n\n(Z)-3,4-dimethylhept-3-ene\n\n14,15 and 15 and 17.... Need to be drawn out.\n\nGood Luck!
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Spectrum Chemicals sells it.  I believe they sell to approved buyers.\n\nYou can request a catalog.\n\nBe very careful.  If Wikipedia can be believed, potassium permanganate is on the list of precursors to manufacture some methamphetamines.  That means the feds will be watching it closely.