What type of intermolecular forces operate for hexane and water individually?
Q. What type of intermolecular forces operate for hexane and water individually? When they are mixed are there stronger or weaker forces operating between the two components of the mixture than within each pure liquid? And which operate for 1-butanol and water, and acetone and water.
Asked by Chelsey - Tue Feb 2 16:15:53 2010 - - 3 Answers - 0 Comments
A. Hexane C6H14 - has London dispersion forces Water-H2O has hydrogen bonds when hexane and water are mixed the intermolecular force is weak London dispersion forces When 1-butanol and water are mixed the intermolecular force is H-bonding( both have -OH groups) When acetone and water are mixed the intermolecular force is dipole-dipole attraction
Answered by halogen - Tue Feb 2 16:23:29 2010
Q. What type of intermolecular forces operate for hexane and water individually? When they are mixed are there stronger or weaker forces operating between the two components of the mixture than within each pure liquid? And which operate for 1-butanol and water, and acetone and water.
Asked by Chelsey - Tue Feb 2 16:15:53 2010 - - 3 Answers - 0 Comments
A. Hexane C6H14 - has London dispersion forces Water-H2O has hydrogen bonds when hexane and water are mixed the intermolecular force is weak London dispersion forces When 1-butanol and water are mixed the intermolecular force is H-bonding( both have -OH groups) When acetone and water are mixed the intermolecular force is dipole-dipole attraction
Answered by halogen - Tue Feb 2 16:23:29 2010
What happens when hexane is ignited in an evaporating basin?
Q. What happens when you add bromine water to hexane? What is the reaction type for the reaction with bromine? Also what would happen if you did the same experiments with cyclohexane? Please help! Thanks =)
Asked by Janey - Wed May 27 09:32:04 2009 - - 2 Answers - 0 Comments
A. This is a topic in organic chemistry under qualitative analysis of organic compounds. Hexane is a good example of saturated hydrocarbon which means that all carbons have either four or three hydrogens bonded to them and there are no double bonds, triple bonds or rings. Saturated hydrocarbons are also grouped together because they react more or less the same way. These two procedures (igniting and adding bromine water) that you've mentioned in fact tests for the unsaturation of compounds. The first one--called the ignition test (for unsaturation)--is where you ignite a substance in the evaporating dish and you observe the smoke above the flame. The darker or sootier the smoke, the more unsaturated the compound. On the other hand if… [cont.]
Answered by happyman - Wed May 27 10:53:23 2009
Q. What happens when you add bromine water to hexane? What is the reaction type for the reaction with bromine? Also what would happen if you did the same experiments with cyclohexane? Please help! Thanks =)
Asked by Janey - Wed May 27 09:32:04 2009 - - 2 Answers - 0 Comments
A. This is a topic in organic chemistry under qualitative analysis of organic compounds. Hexane is a good example of saturated hydrocarbon which means that all carbons have either four or three hydrogens bonded to them and there are no double bonds, triple bonds or rings. Saturated hydrocarbons are also grouped together because they react more or less the same way. These two procedures (igniting and adding bromine water) that you've mentioned in fact tests for the unsaturation of compounds. The first one--called the ignition test (for unsaturation)--is where you ignite a substance in the evaporating dish and you observe the smoke above the flame. The darker or sootier the smoke, the more unsaturated the compound. On the other hand if… [cont.]
Answered by happyman - Wed May 27 10:53:23 2009
Why is it better or more healthful to buy cooking oil or even vitamins that say cold-pressed, hexane free?
Q. What is hexane, why is it harmful, and what does being cold-pressed mean? To buy items that are cold-pressed and hexane free, is that a health benefit, and why?
Asked by phantom8000 - Wed Jul 2 22:27:14 2008 - - 2 Answers - 0 Comments
A. I know that there is info on it in saving dinner dot com. Leanne explains it...
Answered by charisma - Wed Jul 2 22:31:53 2008
Q. What is hexane, why is it harmful, and what does being cold-pressed mean? To buy items that are cold-pressed and hexane free, is that a health benefit, and why?
Asked by phantom8000 - Wed Jul 2 22:27:14 2008 - - 2 Answers - 0 Comments
A. I know that there is info on it in saving dinner dot com. Leanne explains it...
Answered by charisma - Wed Jul 2 22:31:53 2008
How many grams of hexane must be burned to produce one million kj of heat?
Q. How many grams of hexane must be burned to produce one million kj of heat? the heat of combusion of hexane is 4163 kJ/mole...
Asked by ruflubber - Sat Feb 7 14:36:03 2009 - - 1 Answers - 0 Comments
A. 1 mole hexane weights 86 g 86 g : 4163 = x : 1000 x = 20658 g
Answered by Dr.A - Sat Feb 7 15:01:27 2009
Q. How many grams of hexane must be burned to produce one million kj of heat? the heat of combusion of hexane is 4163 kJ/mole...
Asked by ruflubber - Sat Feb 7 14:36:03 2009 - - 1 Answers - 0 Comments
A. 1 mole hexane weights 86 g 86 g : 4163 = x : 1000 x = 20658 g
Answered by Dr.A - Sat Feb 7 15:01:27 2009
what is the significance of performing SOLVENT PARTITIONING using hexane and ethyl acetate?
Q. if you have a source, id very much appreciate it. im performing solvent partitioning (using hexane and ethyl acetate) from an ethanolic plant extract. i need sources! :) ill be using hexane and ethyl acetate separately. hexane first, then ethyl acetate. my extract was soaked in ethanol.
Asked by marketer - Tue Feb 10 04:30:49 2009 - - 2 Answers - 0 Comments
Q. if you have a source, id very much appreciate it. im performing solvent partitioning (using hexane and ethyl acetate) from an ethanolic plant extract. i need sources! :) ill be using hexane and ethyl acetate separately. hexane first, then ethyl acetate. my extract was soaked in ethanol.
Asked by marketer - Tue Feb 10 04:30:49 2009 - - 2 Answers - 0 Comments
Question about differences between hexane and octane?
Q. Suppose that you have a bottle of hexane and a bottle of octane, but the labels have fallen off. Suggest two physical properties that you could use to distinguish between these two compounds and identify the contents of each bottle. Explain your reasoning.
Asked by Chem C - Thu Mar 6 12:19:39 2008 - - 4 Answers - 0 Comments
A. Both these products are straight chain saturated hydrocarbons with single bonds only. The most significant difference that could be exploited to identify which is which is the difference in boiling point. Hexane boils at 69 C and octane at 125 C. A small sample of one of them is put into a test tube and dipped into boiling water, watch what happens. If the liquid rapidly evaporates (boils away) then it is hexane. If it remains with only slow evaporation then it is octane. Be careful, vapours are explosive. Their densities are quite similar, hexane 0.655 and octane 0.703 so with careful measurement this could also be used.
Answered by Trevor H - Thu Mar 6 13:02:47 2008
Q. Suppose that you have a bottle of hexane and a bottle of octane, but the labels have fallen off. Suggest two physical properties that you could use to distinguish between these two compounds and identify the contents of each bottle. Explain your reasoning.
Asked by Chem C - Thu Mar 6 12:19:39 2008 - - 4 Answers - 0 Comments
A. Both these products are straight chain saturated hydrocarbons with single bonds only. The most significant difference that could be exploited to identify which is which is the difference in boiling point. Hexane boils at 69 C and octane at 125 C. A small sample of one of them is put into a test tube and dipped into boiling water, watch what happens. If the liquid rapidly evaporates (boils away) then it is hexane. If it remains with only slow evaporation then it is octane. Be careful, vapours are explosive. Their densities are quite similar, hexane 0.655 and octane 0.703 so with careful measurement this could also be used.
Answered by Trevor H - Thu Mar 6 13:02:47 2008
knowing that H2O and hexane are immiscible how can we explain that they are miscible when done in lab?
Q. How can you explain these results given that water and hexane are immiscible?
Asked by Pauleta Pitche - Thu Jan 22 12:44:53 2009 - - 2 Answers - 0 Comments
A. Water and hexane are immiscible - this is a scientific fact. This should be especially true in the laboratory. When things do not work in accordance with science, there is usually only 1 reason - This is not that the science is wrong, as many students conclude, But that there has been operator error. If the solutions mix, then you are not mixing water and hexane
Answered by Trevor H - Thu Jan 22 14:28:35 2009
Q. How can you explain these results given that water and hexane are immiscible?
Asked by Pauleta Pitche - Thu Jan 22 12:44:53 2009 - - 2 Answers - 0 Comments
A. Water and hexane are immiscible - this is a scientific fact. This should be especially true in the laboratory. When things do not work in accordance with science, there is usually only 1 reason - This is not that the science is wrong, as many students conclude, But that there has been operator error. If the solutions mix, then you are not mixing water and hexane
Answered by Trevor H - Thu Jan 22 14:28:35 2009
can hexane be used in place of toluene for extraction of the same substance?
Q. I want to know whether they are same enough so that if toluene extracts something out from a solution, will hexane do it? I only have hexane in my lab right now... I am trying to extract a secondary plant product-a terpene
Asked by rubens gates - Mon Jan 11 06:49:59 2010 - - 3 Answers - 0 Comments
A. quite likely, but without you telling us exactly what you are trying to extract, people answering can only guess!
Answered by Colin - Mon Jan 11 07:19:33 2010
Q. I want to know whether they are same enough so that if toluene extracts something out from a solution, will hexane do it? I only have hexane in my lab right now... I am trying to extract a secondary plant product-a terpene
Asked by rubens gates - Mon Jan 11 06:49:59 2010 - - 3 Answers - 0 Comments
A. quite likely, but without you telling us exactly what you are trying to extract, people answering can only guess!
Answered by Colin - Mon Jan 11 07:19:33 2010
How is n-Hexane used in the extraction of soybean oil?
Q. Basicly what im asking is; how is soybean oil extracted using n-Hexane? I mean the process. An answer or a good link would be great. thanks
Asked by Algae is the future. Look it up. - Thu May 8 19:28:34 2008 - - 1 Answers - 0 Comments
A. The soybeans are ground to a meal and rolled into flakes. The flaked meal is treated with n-Hexane (as a solvent) to extract the oil. The n-Hexane is separated from the meal by filtration or centrifugation. The solvent is then remove by evaporation at a reduced pressure and re-cycled into a new batch of meal. The soybean oil is then purified. Some methods extract the n-Hexane solution with water based chemicals to help purify the product. Some soybean oil extraction methods do not use n-Hexane, but instead use physical means to crush the beans and "press" the oil for separation.
Answered by Richard - Sat May 10 00:46:21 2008
Q. Basicly what im asking is; how is soybean oil extracted using n-Hexane? I mean the process. An answer or a good link would be great. thanks
Asked by Algae is the future. Look it up. - Thu May 8 19:28:34 2008 - - 1 Answers - 0 Comments
A. The soybeans are ground to a meal and rolled into flakes. The flaked meal is treated with n-Hexane (as a solvent) to extract the oil. The n-Hexane is separated from the meal by filtration or centrifugation. The solvent is then remove by evaporation at a reduced pressure and re-cycled into a new batch of meal. The soybean oil is then purified. Some methods extract the n-Hexane solution with water based chemicals to help purify the product. Some soybean oil extraction methods do not use n-Hexane, but instead use physical means to crush the beans and "press" the oil for separation.
Answered by Richard - Sat May 10 00:46:21 2008
what is the molecular formula of iodine and hexane?
Q. I now that iodine dissolves into hexane and i know about the inter/intramolecular forces but i dont know what the heck the formula would be for that i need to know what the formula is when iodine is dissolved into the hexane
Asked by sisterinlaw358 - Sun Jan 3 12:37:49 2010 - - 4 Answers - 0 Comments
A. You only have a "formula" if there has been a reaction and I don't think Iodine (diatomic molecule - I2) and Hexane (C6H14) will react spontaneously. The lighter halogens react with alkanes, particularly in sunlight, but as you move down the periodic table it is harder to get halogens to substitute a hydrogen on the chain. In the absence of a reaction you simply have the two separate species, Iodine and Hexane.
Answered by RobA - Sun Jan 3 15:59:36 2010
Q. I now that iodine dissolves into hexane and i know about the inter/intramolecular forces but i dont know what the heck the formula would be for that i need to know what the formula is when iodine is dissolved into the hexane
Asked by sisterinlaw358 - Sun Jan 3 12:37:49 2010 - - 4 Answers - 0 Comments
A. You only have a "formula" if there has been a reaction and I don't think Iodine (diatomic molecule - I2) and Hexane (C6H14) will react spontaneously. The lighter halogens react with alkanes, particularly in sunlight, but as you move down the periodic table it is harder to get halogens to substitute a hydrogen on the chain. In the absence of a reaction you simply have the two separate species, Iodine and Hexane.
Answered by RobA - Sun Jan 3 15:59:36 2010
What is ethanol and hexane: nonpolar or polar covalent?
Q. What is ethanol and hexane: nonpolar or polar covalent?
Asked by THat girl - Thu Dec 13 21:25:47 2007 - - 2 Answers - 0 Comments
A. actually ethanol and hexane while both may be considered non polar, ethanol has a polar OH group in it. The oxygen has a d- charge while the H has a d+ charge
Answered by Shivum P - Thu Dec 13 21:46:39 2007
Q. What is ethanol and hexane: nonpolar or polar covalent?
Asked by THat girl - Thu Dec 13 21:25:47 2007 - - 2 Answers - 0 Comments
A. actually ethanol and hexane while both may be considered non polar, ethanol has a polar OH group in it. The oxygen has a d- charge while the H has a d+ charge
Answered by Shivum P - Thu Dec 13 21:46:39 2007
Why is salicylic acid soluble in hexane and not water?
Q. Please help! I thought that non-polar dissolve in non-polar and polar dissolve in polar...but salicylic acid is polar and water is polar but everywhere says it doesn't dissolve in water! And I don't even know about hexane!
Asked by GirlieChica - Thu Nov 5 18:13:18 2009 - - 1 Answers - 0 Comments
A. Not all acids are necessary highly polar. Some organic acids such as this are more nonpolar and don't freely give up the proton to be water soluble. That benzene or phenyl group on it makes it hydrophobic instead of hydrophilic.
Answered by Chris G - Thu Nov 5 18:18:08 2009
Q. Please help! I thought that non-polar dissolve in non-polar and polar dissolve in polar...but salicylic acid is polar and water is polar but everywhere says it doesn't dissolve in water! And I don't even know about hexane!
Asked by GirlieChica - Thu Nov 5 18:13:18 2009 - - 1 Answers - 0 Comments
A. Not all acids are necessary highly polar. Some organic acids such as this are more nonpolar and don't freely give up the proton to be water soluble. That benzene or phenyl group on it makes it hydrophobic instead of hydrophilic.
Answered by Chris G - Thu Nov 5 18:18:08 2009
When using hexane on a water sample to extract oil and grease-what techniques have the best recovery rate?
Q. why hexane? the epa requires it.
Asked by 13Mintcar - Thu Feb 28 19:08:38 2008 - - 3 Answers - 0 Comments
A. EPA requires it because hexane is pretty clean and its relatively non-toxic. Recover rate depends on many factors. In general, multiple extractions usually work better than single large volume extractions. Meaning, rather than extracting with 60mL of hexane over your sample, using 20mL of hexane and extract samples 3 times usually works better. Also, the volume of hexane compared to the volume of sample/water is important as well. If you have a 100mL sample, extracting with 20mL of hexane 3 times probably won't give you a good recovery. I would use the same volume as the sample to extract or more. Next, what are other processes involved to determine the recovery rate? Is there a drying step involved? Sometimes the drying step can… [cont.]
Answered by Amoeba - Sat Mar 1 15:15:19 2008
Q. why hexane? the epa requires it.
Asked by 13Mintcar - Thu Feb 28 19:08:38 2008 - - 3 Answers - 0 Comments
A. EPA requires it because hexane is pretty clean and its relatively non-toxic. Recover rate depends on many factors. In general, multiple extractions usually work better than single large volume extractions. Meaning, rather than extracting with 60mL of hexane over your sample, using 20mL of hexane and extract samples 3 times usually works better. Also, the volume of hexane compared to the volume of sample/water is important as well. If you have a 100mL sample, extracting with 20mL of hexane 3 times probably won't give you a good recovery. I would use the same volume as the sample to extract or more. Next, what are other processes involved to determine the recovery rate? Is there a drying step involved? Sometimes the drying step can… [cont.]
Answered by Amoeba - Sat Mar 1 15:15:19 2008
What is the boiling point of hexane at 600 mm Hg?
Q. What is the boiling point of hexane at 600 mm Hg?
Asked by behappy94 - Sat Dec 12 15:03:36 2009 - - 1 Answers - 0 Comments
A. 61.6 C or 334.7 K
Answered by C K - Sat Dec 12 15:30:21 2009
Q. What is the boiling point of hexane at 600 mm Hg?
Asked by behappy94 - Sat Dec 12 15:03:36 2009 - - 1 Answers - 0 Comments
A. 61.6 C or 334.7 K
Answered by C K - Sat Dec 12 15:30:21 2009
What is the equation of hexane and benzene in baeyer's test?
Q. we pour 1 mL of hexane with 3 drops of KMnO4 and cover with cork and then shake... we do the same test with Benzene. but our assignment is about the equation.but we haven't yet discuss about equation...i hope you can help me...thank you
Asked by may ann - Fri Jan 18 23:59:52 2008 - - 1 Answers - 0 Comments
A. Hexane is not going to react with the oxidizing agent, KMnO4. Hexene will however to form a vicinal diol (two hydroxy substituents on adjacent carbons). This is confirmed by the loss of purple permangante color and the formation of a brown precipitate, MnO2. Benzene however will not react with the permanganate since the resonance of the benzene ring (aromaticity, specifically) renders it more stable, and less prone to oxidation. The equation would depend on what alkene was used and the position of the double bond, but you will end up with a vicinal diol and manganese (IV) oxide.
Answered by gestralt - Sat Jan 19 20:12:05 2008
Q. we pour 1 mL of hexane with 3 drops of KMnO4 and cover with cork and then shake... we do the same test with Benzene. but our assignment is about the equation.but we haven't yet discuss about equation...i hope you can help me...thank you
Asked by may ann - Fri Jan 18 23:59:52 2008 - - 1 Answers - 0 Comments
A. Hexane is not going to react with the oxidizing agent, KMnO4. Hexene will however to form a vicinal diol (two hydroxy substituents on adjacent carbons). This is confirmed by the loss of purple permangante color and the formation of a brown precipitate, MnO2. Benzene however will not react with the permanganate since the resonance of the benzene ring (aromaticity, specifically) renders it more stable, and less prone to oxidation. The equation would depend on what alkene was used and the position of the double bond, but you will end up with a vicinal diol and manganese (IV) oxide.
Answered by gestralt - Sat Jan 19 20:12:05 2008
What is the proper way to dispose of a 2 millimiilter sample fo Hexane after completing experiments with it?
Q. a. return it to the solvent bottle b. place it in a waste bottle with compatible organic c. flush it down the drain with large quantities of water d pour it on a solid absorbent so it can be thrown away with solid waster
Asked by Mailan - Thu Aug 28 19:53:41 2008 - - 1 Answers - 0 Comments
A. B.
Answered by larue.josph - Thu Aug 28 20:06:15 2008
Q. a. return it to the solvent bottle b. place it in a waste bottle with compatible organic c. flush it down the drain with large quantities of water d pour it on a solid absorbent so it can be thrown away with solid waster
Asked by Mailan - Thu Aug 28 19:53:41 2008 - - 1 Answers - 0 Comments
A. B.
Answered by larue.josph - Thu Aug 28 20:06:15 2008
What is the order of increasing boiling points for water, hexane, isopropyl alcohol, and acetone?
Q. Does it have to do with polarity? or intermolecular forces? or what?
Asked by :) - Sun Dec 20 21:27:44 2009 - - 1 Answers - 0 Comments
A. water>iso propyl alcohol>acetone>hexane.. both isopropyl alcohol and water has hydrogen bonding...but hydrogen bonding in isopropyl alcohol is hindered because of the the two methyl groups...so boiling point is lower than water... acetone has only dipole -dipole interaction and no hydrogen bonding...so its boiling point is lower than both water and isopropyl alcohol... hexane is a non-polar compound so its boiling point will be less than water,iso propyl alcohol,and acetone... see this link for details about hydrogen bonding --- answer mine--
Answered by ashish sinha - Mon Dec 21 07:21:09 2009
Q. Does it have to do with polarity? or intermolecular forces? or what?
Asked by :) - Sun Dec 20 21:27:44 2009 - - 1 Answers - 0 Comments
A. water>iso propyl alcohol>acetone>hexane.. both isopropyl alcohol and water has hydrogen bonding...but hydrogen bonding in isopropyl alcohol is hindered because of the the two methyl groups...so boiling point is lower than water... acetone has only dipole -dipole interaction and no hydrogen bonding...so its boiling point is lower than both water and isopropyl alcohol... hexane is a non-polar compound so its boiling point will be less than water,iso propyl alcohol,and acetone... see this link for details about hydrogen bonding --- answer mine--
Answered by ashish sinha - Mon Dec 21 07:21:09 2009
How do you tell if a substance (such as n-hexane or ethanol etc.) has hydrogen bonding or not?
Q. How do you figure out what type of bonding it has?
Asked by BioMajor - Tue Jan 27 23:58:58 2009 - - 2 Answers - 0 Comments
A. In order for hydrogen bonding to occur, an uneven charge distribution must be present on the hydrogen--meaning the hydrogen must be bonded to an electronegative element such as N or O. Thus ethanol exhibits hydrogen bonding, n-hexane does not.
Answered by supastremph - Wed Jan 28 00:05:50 2009
Q. How do you figure out what type of bonding it has?
Asked by BioMajor - Tue Jan 27 23:58:58 2009 - - 2 Answers - 0 Comments
A. In order for hydrogen bonding to occur, an uneven charge distribution must be present on the hydrogen--meaning the hydrogen must be bonded to an electronegative element such as N or O. Thus ethanol exhibits hydrogen bonding, n-hexane does not.
Answered by supastremph - Wed Jan 28 00:05:50 2009
When Hexane (C6H14) is burned completely in Oxygen gas, carbon dioxide and water vapour form?
Q. 1. Write a balanced equation for this re-action including states 2. Calculate the moles of Hexane required to form 150g of Carbon Dioxide 3. Determine the grams of Hexane that will react exactly with 22g of Oxygen.
Asked by Georgie G - Wed Jan 21 19:28:16 2009 - - 2 Answers - 0 Comments
A. 1. 2C6H14 + 19O2 -> 12C02 + 14H0H 2. Start with the given, convert it to mols, use the mol-to-mol ratio from the balanced equation to convert CO2 to mols of Hexane for your answer. 150gCO2x(1molCO2 / 48gCO2)x(2MolC6H14 / 12molCO2). If you rewrite this out so that the denominators of the fractions are on bottom, you then multiply across the top and divide the top by the product of the bottom. So: 150x1x2 = 300 --- 48x12 = 576 Divide 300 by 576 to get 0.52mols of Hexane required to form 150g of CO2. 3. Hexang has 86g/mol. Using the same method as above, I start with my given, convert it to mols, use the mol-to-mol ratio from the balanced equation to convert O2 to mols of Hexane, and then convert mols to grams. 22gO2x(1molO2 / 32gO2)x(2g [cont.]
Answered by Sean W - Wed Jan 21 19:51:34 2009
Q. 1. Write a balanced equation for this re-action including states 2. Calculate the moles of Hexane required to form 150g of Carbon Dioxide 3. Determine the grams of Hexane that will react exactly with 22g of Oxygen.
Asked by Georgie G - Wed Jan 21 19:28:16 2009 - - 2 Answers - 0 Comments
A. 1. 2C6H14 + 19O2 -> 12C02 + 14H0H 2. Start with the given, convert it to mols, use the mol-to-mol ratio from the balanced equation to convert CO2 to mols of Hexane for your answer. 150gCO2x(1molCO2 / 48gCO2)x(2MolC6H14 / 12molCO2). If you rewrite this out so that the denominators of the fractions are on bottom, you then multiply across the top and divide the top by the product of the bottom. So: 150x1x2 = 300 --- 48x12 = 576 Divide 300 by 576 to get 0.52mols of Hexane required to form 150g of CO2. 3. Hexang has 86g/mol. Using the same method as above, I start with my given, convert it to mols, use the mol-to-mol ratio from the balanced equation to convert O2 to mols of Hexane, and then convert mols to grams. 22gO2x(1molO2 / 32gO2)x(2g [cont.]
Answered by Sean W - Wed Jan 21 19:51:34 2009
how does a granduated cylinder affect the volume of a 50 mL hexane sample?
Q. im working on a chemistry assignment and my book doesnt seem to explain alot about the subject.
Asked by dinah r - Fri Aug 22 16:18:52 2008 - - 3 Answers - 0 Comments
Q. im working on a chemistry assignment and my book doesnt seem to explain alot about the subject.
Asked by dinah r - Fri Aug 22 16:18:52 2008 - - 3 Answers - 0 Comments
From Yahoo Answer Search: 'hexane'
Tue Mar 9 13:09:42 2010 [ refresh local cache ]
[Hide]▼
news.google.com
Le Monde
... contact avec de l' hexane , un produit interdit en Europe et aux Etats-Unis mais parfois utilise en Chine pour nettoyer les ecrans a cristaux liquides. ...
Apple: au moins 11 mineurs travaillaient indirectement pour elle l'annee derniere BRANCHEZ-VOUS.com
Apple fait le menage chez ses sous-traitants ITRmobiles.com
all 4 news articles »
d.hatena.ne.jp
Hexane
Wed, 25 Nov 2009 08:00:00 GM
@. Hexane. · Twitter 10 : .net · Classic: between / beyond readers · one piece ...
[Hide]▲
