Xylene b&q. Flash point 81-115°F. Xylene b&q

 
 Flash point 81-115°FXylene b&q  Mineral spirits are a petroleum-based product that is commonly used to thin and clean up oil-based paints

The V 2 O 5 – TiO 2 system is commonly used as a catalyst. For this ideal system, vapor-liquid equilibrium data can be computed using Raoult's law, , where is the vapor pressure of component given by Antoine's equation, is the total pressure, and and are the liquid and vapor phase mole fraction of component . - VM&P Naptha. After injection of 10 ppm xylene, the resistance was decreased sharply (5 s) from 150. Order online or check stock in store. 292 (−1. 36 Mounting jobs available in Peaster, TX on Indeed. The pulmonary, gastric and ocular effects. The bottoms product contains 98. 1. ChEBI. Two hydrogen atoms forming bridges lie in a different plane. 1999. , Li, H. 25. 1000s of DIY supplies. 1,2-Xylene; 1,3-xylene; 1,4-xylene | C24H30 | CID 6850715 - structure, chemical names, physical and chemical properties, classification, patents, literature. Our in-store timber cutting service is ideal for DIY projects. Makita DUR193Z LXT 18v Lithium Cordless Grass Line Trimmer Strimmer + 15m Spool. Isomers of xylene are used in the manufacture of certain polymers (chemical compounds), such as plastics. 6–8. (1) Exposure to xylene at levels of 200 ppm or greater can irritate the lungs, causing chest pain and shortness of breath. Inspiration for your home & garden. (13) £. Off the top of my head I can think of: - Xylene. Xylenes undergo extensive metabolism and are primarily excreted as metabolites in the urine with small amounts. The greatest use of xylenes is as a solvent which is much safer than benzene. 9 mol/hr toluene, and no xylene. D. Get medical attention. An equal number of Control and Restricted uterine artery samples were stained and photographed at the same time under identical conditions, using the same magnification and light intensity. Pure Acetone Brush Cleaner 5 litre. The rate data for the reaction is given below. - Paint thinner (often labeled as "Pure Mineral Spirits" and placed on the shelf right next to the mineral spirits) So what are the differences in all these?Question: QUESTION 3: Unimolecular Diffusion - evaporation of xylene. Home Source 5-Tier Ladder Shelf Storage Grey. H. PXY. Recently, phthalic anhydride has been mainly prepared from ortho-xylene in multitube reactors (about 40 000 tubes). p. Because of the low bulk conductivity of F8T2, no patterning of the semiconducting layer is required. 99. b. Bán Toluen, Toluene, C7H8. m-X was introduced with 25% of inert, with a concentration of 0. 8 billion lbs. provided the cathode buffer layer material. Products Building Blocks Explorer Genes Papers Technical Documents Site Content Chromatograms. SEE GLOSSARY ON PAGE 5. Mới - Cần bán. Skin Contact Wash off immediately with plenty of water for at least 15 minutes. With both wall-mounted and free-standing options available in a selection of sizes, colours, finishes and styles, we have a fantastic range of bathroom furniture for you to choose from. Matt Black Pine effect Plain Single Picture frame (H)20. 50. 50. Xylene (C 8 H 10) is a colorless, flammable liquid with a sweet odor. Distillation of Benzene, Toluene, and Xylene A liquid mixture containing 30. In organic chemistry, xylene or xylol (from Greek ξύλον (xylon) 'wood'; IUPAC name: dimethylbenzene) are any of three organic compounds with the formula (CH 3) 2 C 6 H 4. Doing a Chem. View product. ToxFAQs. xylene, any of three isomeric dimethylbenzenes [which have the same chemical formula, C 6 H 4 (CH 3) 2, but different molecular structure], used as solvents,. 1 110. Crown Xylol is similar to toluene, but the evaporation rate is about five times slower. Commercial grade xylene, in which m-xylene is usually the major constituent, is a clear, colorless liquid with a sweet, aromatic odor. Clearance. 12. Chemistry questions and answers. When reacted over a hydrogen mordenite catalyst that decays over time, the rate law is: The catalyst is known to approximately follow a second order decay: Ta = kda2 kT 20 mol/h/kg-catlatm. 0% toluene (T) and the balance xylene (X) is fed to a distillation column. Inspiration for your. H2O stays in the gas stream. 99. Elements of Chemical Reaction Engineering (5th Ed. Answered over 90d ago. Reconstituted solution contains 0. (5) £. Hertz 24/7 is available at participating stores only. As individual isomers they are extensively employed in the synthesis of synthetic agents. Arpan Multi Aperture Picture Wooden Photo Frame Holds 12 x 6 x4 Photos, Collage Picture Wall-Mounted Frame (White) £. Buy Tables at B&Q - 90 day returns. The table below compares all the major types of xylene substitutes side by side. Read more. Q. It can enter drinking water byThe xylene-contaminated soil was prepared in the same manner. Xylene is expected to moderately bioaccumulate, in fish. Xylol, on the other hand, may be better suited for more delicate surfaces, such as wood or fabric. Xylene is one of the few chemicals that don’t mix with water. Teamson Home Dimmable Wall Light with Touch Sensor, Wall Sconce with Clear Globe & Glass Shade - Silver - 15. Chemical name :Xylene Supplier's details :CITGO Petroleum Corporation P. Definitely forget the white spirit. Xylene, xylol, or dimethylbenzene is known to cause severe vasodilation and edematous changes of skin as signs of acute. Buy Back Doors at B&Q 1000s of DIY supplies. Artery sections were then mounted in dibutyl phthalate xylene (DPX) mounting medium and coverslipped. At 25 u0003C, xylene has a solubility in water of 106 mg lu00011, an estimated vapor pressure of 6. 1. Xylene’s structure consists of two methyl groups attached to a six-carbon ring. Following the procedure we discussed in class, calculate theAzeotropes. 108°C), toluene (b. As xylene is difficult to desorption, the sensor needs a little longer time (736 s) to recovery, but it is negligible compared with the degree of gas response it improves. Mới - Cần bán. Wilson and NRTL equations were used to correlate the VLE data through a nonlinear least-squares method. The bottom product stream contains benzene, toluene, and 68. if the product has an acronym. Symptoms include pain, redness, and swelling. As low as 1 ppm p-xylene can be well detected with high response value of 11. Insoluble in water. J. En la Tabla 1 se presentan las entalpías de las corrientes del proceso (referenciada a líquidos puros a 70 °F) en unidades de BTU/h. for Xylene. 99. Following the procedure we discussed in class,calculate the composition (in mass fraction) of the top product stream. Most mixed xylenes contain ethylbenzene, except for a small volume produced by toluene disproportionation (Ransley, 1984). Add to basket. What is Xylene and how is it used? A xylene is any of a group of very similar organic compounds. Wooden Rustic Shelf with Bracket TRAMP 170mm 7 inches Light Oak Length of 110cm. EC-No. o-xylene m -xylene p -xylene Draw all six isomers of the formula for C4H8. Eye Contact Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. simpa 14mm Red Granite Chippings Bag 20kg. 2. Thanks I'll probably used lighter fluid for the first few pulls to get the spice, followed maybe by a xylene pull to get some of the other jungle alkaloids. 44 with Motoring Club premium. The t B. There are three forms of xylene: meta-xylene, ortho-xylene and para-xylene. £. 86. Same. 94. Rats pretreated with m-xylene showed an approximately 10% increase in the percentages of methylhippuric acid and thio ethers in urine. xylene fed to the column. Xylene is an organic compound represented with the chemical formula C8H10. As pointed out by Peralta et al. 24. Dr. Registration number 1330-20-7 215-535-7 601-022-00-9 01-2119488216-32-XXXX. (3) £. You will find tables and graphs of the thermal conductivity, density, viscosity, and heat capacity of o-xylene, m-xylene, p. Introduction. The overhead product is fed to a second column. O-xylene appears as a colorless watery liquid with a sweet odor. (64) £10. In the presence of trifluoromethanessulfonic acid (TfOH, 10 mol%), the cyclization of 1a (0. Crude xylene manufactured from black coal tar contains 10–15% o-xylene, 45–70% -xylene, about m 23% p-xylene and 6–10% ethylbenzene. Question: You have two choices of DNA loading dye. A mixture containing 50% benzene (B) and 30% toluene (T) and 20% ortho-xylene (X) by mass is fed to a distillation column. 01. 101 App A Appendix A to §172. The three isomeric Xylenes each have a molecular formula of C8H10. Lin, X. These markers feature fade and water-resistant ink that dries quickly to avoid. You decide to experiment withan insulated tube that is closed on the bottom and open at the top. Whatever your space, it deserves to be celebrated. 028, 0. 1557 Marietta Road . Products reviewed by customers. 99. Xylene: B-Good: Zinc Chloride: A-Excellent: Zinc Hydrosulfite: N/A: Zinc Sulfate: A-Excellent: Explanation of Footnotes 1. Introduction. At B&Q we only buy responsibly sourced wood and all of our hardboard sheets are CE and FSC certified, so you can be assured of where. F. imported from Wikimedia project. The isomeric forms are designated as ortho- (o-), meta- (m-), and para- (p-), a reference to the carbon in the benzene ring to which the two methyl groups are attached. D. (5) £. Universal Paint Thinner & Solvents T0200 (T1000) Xylene Based Will Thin Most Paint Coatings Including Quick Drying Paints, Two Pack Epoxy Paints, Chlorinated Rubber Paints, Etch Primers Etc (5 Litre) 16. The log octanol/ water partition coefficient is 3. xylene toluene MeCN dioxane DMF CH3NO2 ethylene glycol dimethyl ether benzonitrile THF 1,2-dichlorobenzene chlorobenzene 1,2-dichloroethane p-chlorotoluene o-xylene 37 40 0 0 0 0 0 33 0 41 70 0 56 37 [a] Standard reaction conditions: 1 (0. Percutaneous absorption is slowLiquid m-xylene is well absorbed through the skin, but dermal absorption of m-xylene vapor (up to 600 ppm) does not appear to be appreciably absorbed. m-Xylene Revision Date 24-Dec-2021 4. Xylene Uses and Industrial Applications Xylene Xylene (C 6 4 3 2 . m-, o-, and p-Xylene are the three isomers of xylene; commercial or mixed xylene usually contains about 40-65% m-xylene and up to 20% each of o- and p-xylene and ethylbenzene. Pan. 8mm Hg and a Henry’s law constants ranging from 5. This Appendix lists materials and their corresponding reportable quantities (RQ's) that are listed or designated as "hazardousSafety in a microbiology laboratory is important in the prevention of infection that might be caused by the microorganisms being studied. Save £7. Beige (65) Black (116)Hangzhou Sartort Biopharma Co. Chloroform, chlorobenzene and ortho-xylene are from Sigma-Aldrich Inc. Its boiling point is approximately 138-144°C (depending on the isomer), and its melting point varies from -25°C to 13°C. In this case, Zto = 0, and Fowler's model becomes equivalent to Langmuir's (Table 1). The V 2 O 5 – TiO 2 system is commonly used as a catalyst. The bottom product stream contains benzene, toluene, and 68. Add to basket. * Technical xylene is a mixture of the three isomers. Ideas & advice Customer support Home delivery Free Click + Collect Returns & refunds Brochures Paint brochures Store finder Become a B&Q. FIRST AID Eye Contact Xylene US (OSHA) TWA 100 ppm / 435 mg/m3 29 CFR 1910. L. Slow PureCast Clear Epoxy Resin Kit 7. Our products have been designed with you in. 2 options. You can see how the black paint has “stuck” to the brush cleaner and come completely off the brush. electrospinning with semi-aromatic nylon poly(m-xylene adipamide) (MXD6), another engineering plastic with high thermal stability and good mechanical properties. 18 u0004 10u00013 atm-m3 moleu00011. Use the suppliers website link for prices, more information or to purchase. 99. C8 alkylaromatic isomers, p-xylene (PX), o-xylene (OX), m-xylene (MX), and ethylbenzene (EB), which are mostly derived from catalytic reforming of crude oil and the. It’s on my buttockslevels of xylene vapor found nearer to the ground. 137-138 °C Alfa Aesar: 281 °F (138. p-Xylene (para-xylene) is an aromatic hydrocarbon. Due to the close boiling points of C 8 aromatics, separation through distillation is uneconomic. 999%) was used as a carrier or sweep gas. The bottom product contains 98 wt % Xylene and n Benzene. Discover top DIY brands. Thins specialty coatings & synthetic enamels. 5cm. 138. Most xylene that is accidentally released evaporates into the air, although some is released into rivers or lakes. Isobaric vapor–liquid equilibrium (VLE) data for toluene + NFM, o-xylene + NFM, m-xylene + NFM, and p-xylene + NFM were measured at 101. 07D1+0. Physical description. Chang, B. 2. 4. Among these models,. ValueLights Retro Silver Chrome 3 Way Round Plate Adjustable Eyeball Ceiling Spotlight. There- fore, on Langmuir's plot the first. Decorating Products Xylene Thinners Can be used to thin most oil-based paints. Save £320. 27 Ấp 5, Đức Hòa Đông, Đức Hòa, Long An. Reduces coatings drying time and degreases tools. Xylene is used as a solvent and in the printing, rubber, and leather industries. At B&Q, we have a wide range of sugar soap, mould remover and paint preparation wipes to remove any dust and debris, giving you the perfect surface for your paint or wallpaper to. Order online or check stock in store. 106. Add to basket. 100s of help & advice articles. 8mm Hg and a Henry’s law constants ranging from 5. )5-chloro-1,3-dimethylbenzene c. In the present of BONPs and UV irradiation, xylene and intermediates (o-xylene, p-xylene, m-xylene) were semi degradated to main fragments by radicals and adsorbed on the surface of NG/NGO (200 mg. The analytes are (a) p- xylene-2-sulfonic acid (MW: 186. We believe that choosing a new bathroom suite should be exciting. More than 300 stores nationwide. Encyclopedia of China (Third Edition) ID. Xylene Substitutes. £8. $76. Average mass 318. 2. Xylene, any of three isomeric dimethylbenzenes [which have the same chemical formula, C6H4 (CH3)2, but different molecular structure], used as solvents, as components of aviation fuel, and as raw materials for the manufacture of dyes, fibres, and films. In this work, the adsorption and separation of xylene isomers and ethylbenzene (EB) on two Zn−terephthalate MOFs (MOF-5 and MOF-monoclinic) were studied by means of pulse. (1) Occupational exposure to mixed xylenes may occur at workplaces where mixed xylenes are produced and used as industrial solvents. 08 g/mol. Light fixtures and fittings, also known as luminaries, are essential components of both interior and exterior lighting systems. You can also purchase quick-release and soft-close models that allow you to easily remove them for cleaning purposes and. Pan. Your Price £20. 1000 Table Z-1 Limits for Air Contaminants Xylene US (ACGIH) TWA 100 ppm / 34 mg/m3 ACGIH Threshold Limit Value Appropriate engineering controls: Use explosion-proof ventilation equipment. 549. It may seem odd, but solvents are chemical composites that are similar on a molecular level to the substances they are designed to dissolve. TheI wanted to know if I need to take a plan b after having unprotected sex but I’m on the xylene patch. This fact sheet is one in a series of summaries about hazardous substances and their health effects. This paint & varnish remover strips fast & effectively. (C 4 H 9 NH 3) 2 PbI 4 provided unique gas-sensing properties toward p-xylene at low temperature. Calculate the theoretical yield, in gm, of product that can be produced using 10 gm of anthracene and stoichiometric amount of maleic anhydride. Feed partial pressures for p -xylene and. £. Spruce Tongue & groove Cladding (L)0. Transitions from S 1 ↔ S 0 states have been found to be within the range of 100cm-1 and were reported to be arising due to the internal rotation of ring methyl groups. Rustins Xylene Thinners can also be. Xylenes is used as a solvent in the manufacturing of chemicals, agricultural sprays, adhesives and coatings, as an ingredient in aviation fuel and gasoline, and as a feedstock in Xylene is used, to a lesser extent, as a material in the chemical, plastics, and synthetic fiber industries and as an ingredient in the coating of fabrics and papers. 041) 2. The adsorption and desorption behaviors of two polar-nonpolar typical VOCs (n-butyl acetate and p-xylene) on activated carbon have been investigated by a temperature swing -vacuum pressure swing adsorption (TS-VSA) hybrid process. This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Xylene is a colorless, sweet-smelling liquid that catches on fire easily. 0 references. Encyclopædia Britannica Online ID. 99. 4. - Lacquer thinner (which contains acetone and xylene) - Distilled alchohol. C8 alkylaromatic isomers, p-xylene (PX), o-xylene (OX), m-xylene (MX), and ethylbenzene (EB), which are mostly derived from catalytic reforming of crude oil and the. Klean-Strip Xylene can be used in place of Toluene to thin specified oil-based paint, lacquer, varnish, epoxy, adhesives and synthetic enamels when a slower rate of evaporation is desired. Your Price £147. Final answer. £. Buy Black Paint at B&Q 90 day returns. It can. Term ‘xylene’ is derived from greek (in Greek xylon means ‘Wood’) as it is found in crude wood spirit [ 8 ]. 38. Traces of toluene,. Only £10. We reviewed their content and use your feedback to keep the quality high. 172. 0% toluene (T), and the balance xylene (X) is fed to a distillation column. Material Safety Data Sheet or SDS for Xylenes 108633 from Merck for download or viewing in the browser. When m-xylene (A) is passed over a Cryotite catalyst, the following elementary reactions are observed. 27. 2 Xylene-induced ear edema assay. The bottoms product contains 98. £. Xylene affects the brain to a greater extent. At Xylene, we provide comprehensive traceability solutions, powered by blockchain and satellite data, in response to growing. Verified by Toppr. or xylol, encompasses a group of three distinct chemical isomers (ortho-xylene, meta-xylene, and para-xylene) that can be classed together generally as xylenes. Showing 24 of 273 products. o-Xylene Revision Date 24-Dec-2021 Proper Shipping Name Xylenes Hazard Class 3 Packing Group III IMDG/IMO UN-No UN1307 Proper Shipping Name Xylenes Hazard Class 3 Packing Group III 15. £. Xylenes are highly soluble in blood and fat, and are distributed widely in the body. Chemical fixation is the most common approach used in the fixation of biological specimens for light microscopy (LM) and electron microscopy (EM). a) Schematic representation of the interfacial self-assembly process used to synthesize the metal-TFP nanofilms, the bottom yellow layer is the metal ions-containing aqueous solution, and the top colorless layer corresponds to. 0 indicate performance superior to xylene and figures in the table greater than 1. House insulation is available in a variety of thicknesses, including 50mm insulation and 100mm insulation, to suit any space or requirement. ChemSpider ID 5254004. Herein, we report a stacked one-dimensional coordination polymer { [Mn (dhbq) (H. Crown Xylol (also known as Xylene) is used for thinning paints, enamels, varnishes and alkyd resins. 2 mmol) with 2a. Composed of p-xylene (PX), m-xylene (MX), o-xylene (OX) and ethylbenzene (EB), mixed xylenes are important organic chemical feedstock [1, 2], which are widely used to produce polyester fibers, resins, pigments, gasoline components, and so on [3]. In organic chemistry, xylene or xylol 'wood'; IUPAC name: dimethylbenzene) are any of three organic compounds with the formula 2C6H4. Showing 24 of 935 products. 3333 °C / 760 mmHg) Wikidata Q3314420 138 °C Sigma-Aldrich SIGALD-134449: 138. Xylenes 1330-20-7 100 Toxicological Data on Ingredients: Xylenes: ORAL (LD50): Acute: 4300 mg/kg [Rat]. (4)Xylene exists as three isomers (ortho-, meta-, and para-xylene), which can be found singly or, more commonly, mixed in varying proportions. Chemical Engineering. As pointed out by Peralta et al. More than 300 stores nationwide. 24. A poultice will help remove stubborn motor oil stains from concrete. In the following sequence of reactions the maximum number of atoms present in molecule 'C' in one plane is _________. Discount applied in basket. CosmoGrill Outdoor XL Smoker Barbecue Charcoal Portable BBQ Grill Garden with Vents and Adjustable Shelves. Products reviewed by customers. It is widely used for the production of ethyl benzene, polyester, and plastic,. A number of theories exist for the mechanisms by which xylene exerts its toxic effects on the various systems of the body. and 81. Job Type : Cleaning brushes and removing excess paint. 89m (W)95mm (T)7. More than 300 stores nationwide. 0 mole% X and no B, and 96. Who are the experts? Experts are tested by Chegg as specialists in their subject area. Xylene is a stronger solvent than xylol, which means it may be better suited for certain surfaces, such as metal or plastic. Mixer showers deliver a great shower experience with high pressure and perfect temperatures every time. For Pro's and DIY'ers, Klean-Strip is the leading brand of solvents, thinners, removers, and cleaners that are dependable for reliable results. Showing 24 of 221 products. GoodHome Lybia Satin Brass Pendant ceiling light, (Dia)250mm. Transcribed image text: Problem 5 ! ): A mixture of toluene (70 mol%) and p-Xylene with a flow rate of 100 mol/min is sent to a flash drum operating at 95∘C and 380 mm Hg pressure. Solution. Here you’ll find lighting fixtures in various formats, including ceiling mounted. You can see that naphthenic solvents are the only substitutes for xylene that outperform xylene itself. Fablon Sticky Back Self Adhesive Vinyl Scroll Flower - 67. Xylene is a liquid, and it can leak into soil, surface water (creeks, streams, rivers), or groundwater. Hydrocarbons's Previous Year Questions with solutions of Chemistry from JEE. ToxFAQs. Question: Refer to Table 4. 2: Data for flash examples and exercises: Antoine parameters for psat(T), normal boiling temperature (Tb) and heat of vaporization ∆vapH(Tb) for selected components. Often specified as a thinner for specialty paints and coatings. It is a colourless sweet- smelling liquid or gas which is present naturally in petroleum, coal and wood tar. 4 mmol. 25 pts . The meaning of XYLENE is any of three toxic flammable oily isomeric aromatic hydrocarbons C8H10 that are di-methyl homologues of benzene and are usually obtained from petroleum or natural gas distillates; also : a mixture of xylenes and ethyl benzene used chiefly as a solvent. GB Eye Contemporary Wooden Grey Picture Frame - Maxi - 61 x 91. With more serious exposure, xylene can cause sleepiness, stumbling, irregular heartbeat, fainting, or even death. 1. You have a PCR product which you expect to be 1000bp. The overhead product from the second column. (1970 [ 63 ]) showed that an expected 10,000 ppm of xylene leads to severe lung edema and lung obstruction with hemorrhage in the alveoli's. Solar and battery powered outdoor lighting allows placement flexibility as they do not require close proximity to an electricity supply. (°C) 80. Discover great savings on a huge range of DIY products in the B&Q clearance event. A liquid mixture containing benzene (B, C6H6), toluene (T, C7H8), and xylene (X, C8 H10) is fed to a distillation column. 1940s, the gas-phase oxidation of ortho-xylene in a flu-idized-bed reactor has been used. Artery sections were then mounted in dibutyl phthalate xylene (DPX) mounting medium and coverslipped. Solution: JEE Advanced 2021: The reaction sequence (s) that would lead to o-xylene as the major product is (are) (A) Image A (B) Image B (C) Image C (D) Image D. /ask/404/Formulated for oil, water and ethanol-based liquids, the specially formulated 3-ply construction helps prevent loss of liquids while a gas barrier inhibits oxygen penetration into the finish. Furthermore, various dienes and dienophiles were employed as reactants to extend the substrate scope. Molecular weight of xylene is 106. Q: Caitlyn Deloach, a 21-year-old female, was found unconscious by her roommate and brought into the emergency department b. X. F. 28. The pollutant-containing soils were treated under heating conditions as described above; the soil was afterward cooled to room temperature, and 2 g of the soil was evenly mixed with anhydrous sodium sulfate and absolute ethanol. A general-purpose pure solvent, perfect for thinning most types of oil-based paint. CAS number :1330-20-7 Substance/mixture CAS number/other identifiers: Occupational exposure limits, if available, are listed in Section 8. The tongue and groove sides allow the loft panels to slot into one another for a secure fit and easy installation. and Z. 3333 °C) NIOSH ZE2625000 137-138 °C (Literature) Alfa Aesar A10534 138 °C Parchem – fine & specialty chemicals 37488: 280-282 °F / 760 mmHg (137. Then the liquid product is sent to the 2 nd flash drum, which generates another liquid product that has 54% toluene. Xylene (Xylol/Dimethylbenzene) Technical Grade – 1 Gallon – (1) 128 FL oz. 5 The desired ratios can now be calculated: gfeedsolution g H O 1. Its dispersed emission and time of flight mass spectra has been reported. carried out the PSCs fabrication and characterization. 357. Welcome to our collection of home furniture and storage. The xylene isomers p-xylene, o-xylene, and m-xylene are aromatic hydrocarbons comprising with two methyl groups located at different positions on a. The task of fitting new flooring need not be difficult and at B&Q, we have all the flooring tools you will need to make your house feel like home with ease so that you can get back to the things you enjoy quickly and smoothly. It is in the positions of the two methyl groups, their arene substitution pattern, that it.