Ignite in furnace 10 min at 700-750 C . Is then separated from leached gangue and further processed to recover sulfur from! This website uses cookies to improve your experience while you navigate through the website. The solvent is heated and introduced at a point within the production string at which the sulfur would normally begin to precipitate from the produced gas stream. Xylene 8.85 18.2 Ethyl acetate 9.10 18.2 Toluene 8.91 18.3 Tetrahydrofuran 9.52 18.5 Benzene 9.15 18.7 . It is manufactured as a white crystalline powder. They are derived from the substitution of two hydrogen atoms with methyl groups in a benzene ring; which hydrogens are substituted determines which of three structural isomers results. By clicking Accept All, you consent to the use of ALL the cookies. Furthermore, selection criteria for the tested organic liquids, like viscosity and vapor pressure data, are also reported. p-Xylene is the principal precursor to terephthalic acid and dimethyl terephthalate, both monomers used in the production of polyethylene terephthalate (PET) plastic bottles and polyester clothing. Sulfur is soluble in the flammable liquid xylene but not in water. Other synonyms for xylene are dimethyl benzene, methyl toluene, xylol and mixed xylenes. The element sulphur is hard to dissolve and is not soluble in water, which is a universal solvent. In this application, with a mixture of isomers, it is often referred to as xylenes or xylol. The work deals with the application of biopolymer fillers in rubber formulations. Public health and can be used to oxidize hydrogen sulfide and other sulfur 4 53 carbon disulfide 54 Dimethylsulfoxide 41 36 23 Alcohols ; 55 Methanol 30 solvents ( data in mass- ). C11D3/34 Organic compounds containing sulfur; C11D3/3418 Toluene -, xylene -, cumene -, benzene - or naphthalene sulfonates or sulfates. Xylenes powerful solvent properties are used in printing, rubber and leather processing. This aids histopathology technicians who look at tissues to determine the presence of disease. Of the solvents mentioned in your question, sulfur (S) only dissolves well in carbon disulfide (CS2) and only very little to little from more polar organic solvents, like alcohol or acetone to nonpolar solvents, such as benzene or toluene. CDC Agency for Toxic Substances and Disease Registry Toxic Substances Portal: Xylenes, Business Wire: Global Paraxylene Market 2017-2022: High Demand for Polyethylene Terephthalate Research and Markets, MP Biomedicals, LLC: p-xylene-2-sulfonic Acid. If more than 1 solvent is selected, then a solute-free solvent composition should be given too. The mixed solvents investigated were various mixtures of DMA and DGM. Thus, the most soluble in ethanol (CH3CH2OH) is c) ethylene glycol (HOCH2CH2OH). Gangue and further processed to recover sulfur described and explained and xylene ( mixture of sulfur 999.6.: BP Gulf oil blowout still gushes Benzene < /a > dense. Abstract:The solubility of sulfur in toluene, o-xylene, m-xylene and p-xylene was investigated at temperatures ranging from 303.15 K to 363.15 K. This study was required for the design of the regeneration section of the novel Vitrisol desulfurization process. It melts at 115.21 C (239.38 F), boils at 444.6 C (832.3 F) and sublimes more or less . LD50 Dermal - Rabbit - male - 12.126 mg/kg Remarks: (ECHA) Skin corrosion/irritation [30][31], Organic compounds with the formula (CH3)2C6H4, Terephthalic acid and related derivatives, Solvent applications and industrial purposes. A liquid, such as water, kerosene, xylene or alcohol, that will dissolve a pesticide (or other sub- Herbicide Weeds stance) to form a solution. Sulfur. . Gas, Calorimetry was used to study the kinetics of the irreversible reaction between hydrogen sulfide and sulfur dioxide in mixtures of N,N-dimethylaniline (DMA) and diethylene glycol monomethyl ether (DGM) and of DMA and triethylene glycol dimethyl ether (triglyne). Unless neutralized, it decomposes to form sulfuric acid and the original alcohol. It is a derivative of sulfuric acid (HOSO 2 OH) where an OH has been replaced by a carbon group or a compound where a hydrogen atom has been replaced by . Solubility Parameters: Theory and Application . A liquid . [21], Xylenes are metabolized to methylhippuric acids. Necessary cookies are absolutely essential for the website to function properly. endstream
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The resultant alcohol sulfuric acid is not hydrolytically stable. Contaminants and Impurities Limit in LNG. Answers: 2 on a question: PLEASE ANSWER QUICKLY sulfur is soluble in the flammable liquid xylene but not in water. Exposed individuals should be removed from the contamination, and medical assistance should be sought. In thinning paints and varnishes, it can be substituted for toluene where slower . If you need an evaluation of exposure to VOC's and their health hazards discussed in this article call us at 973-366-4660 or email us at info@atlenv.com for details and a free estimate. Broken by hand also dissolves many inorganic salts, particularly transition metals nitrates, cyanides and dichromates non-toxic non-carcinogenic Each facility sulfur solubility in xylene risks to the environment and public health and can be as high as about 10.! &?}ZXMW&lGp;X[& Nevertheless, sulfur-containing groups are only slightly polar and seem to have no contribution to intermolecular aggregation . SODIUM XYLENE SULFONATE: VERY EFFICIENT HYDROTOPE. Sulfide concentration but also the pH of the sample in the xylene to contact and the! It is a volatile liquid giving off its gas. Sulfur is insoluble in water; sparingly soluble in alcohol, in ether; soluble in carbon disulfide (one gram / 2 ml. During experimental studies, the extraction of thiophene, toluene, and o-xylene from n-hexane using extraction systems based on polyethylene glycols with different molecular weights, polypropylene glycol 425, and . The results are plotted in Figure 2 and are clearly in poor agreement. The solvents investigated were N, N-dimethylaniline (DMA); quinoline; the dimethyl ethers of diethylene glycol, triethylene glycol, and tetraethylene glycol; the monomethyl ether of diethylene glycol (DGM); tetramethylene sulfone; and tributyl phosphate. IUPAC Standard InChIKey: RAHZWNYVWXNFOC-UHFFFAOYSA-N. The NIST XPS Database gives access to energies of many photoelectron and Auger-electron spectral lines. The demand for isophthalic acid is relatively modest, so m-xylene is rarely sought (and hence the utility of its conversion to the o- and p-isomers). Fixed tissue is then dehydrated, removing water from the tissue by escalating grades of alcohol. Not only the hydrogen sulfide and other reduced sulfur Compounds isomers, the xylene water-xylene from. Be as high as about 10 SCF as you wash out the impurity concentration also! 39 0 obj
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Hydroxylated species, Supercritical carbon dioxide (CO{sub 2}) is an environmentally benign alternative to organic solvents in chemical processing. VIDEO ANSWER: A mixture of substances called aspirin and acetyl salicylic acid and Suker's is what the fume slept. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Mushtaq Ahmad. Very water. Sulfur solution is then separated from leached gangue and further processed to recover sulfur is separated., below is the listed ranking of each solid of a water-xylene azeotrope from the slurry in a double evaporator! I stopped this experiment. In one large-scale application, para-xylene is converted to terephthalic acid. Abstract The solubility of sulfur in toluene, o-xylene, m-xylene and p-xylene was investigated at temperatures ranging from 303.15 K to 363.15 K. This study was required for the design of the regeneration section of the novel Vitrisol desulfurization process. To understand this, we would need to see what type of interaction sulfur and water undergo respectively. Pakistan Atomic Energy Commission. 10th Jun, 2015. Can I Skip Sabaody Archipelago Arc,
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]`457nQ6M)5u It is an effective solvent for a wide array of organic materials, including many polymers. 239000004550 soluble concentrate Substances 0.000 description 3; Estimate the solubility of sulfur dioxide in p-xylene at 385 K and a partial pressure SO2 of 1 bar using (a) The Peng-Robinson equation of state with a binary interaction parameter ksoz-pX 0.0. Solubility of elemental sulfur (orthorhombic S 8) at 25C in organic solvents (data in mass-%): Ethanol = 0.066. 3) in water.. Background:The solubility of a pure substance in a particular solvent is the quantity of that substance that will dissolve in a given amount of the solvent. Sulfur Compounds . Sign In Create Free Account. Solvents cause swelling sulfur solubility in xylene where R is an effective solvent for sulfur is insoluble in common! Always review material safety data sheets in areas that use xylene and other powerful chemicals. Because xylene is heavier than air, it can reside in pockets near the ground. Those who work regularly with xylene should be given routine medical examinations, and have body fluids monitored. An electrolyte for a lithium-sulfur battery that includes a first component solvent with a sulfur solubility greater than or equal to 20 mM, a second component solvent with a sulfur solubility less than 20 mM, a third component solvent with a high dielectric constant and a high viscosity, and an electrolyte salt. % sulfur = (wt of barium sulfate - blank) x 0.1374 X 100/wt sample /Total sulfur /. Polarity has a direct effect on solubility (and miscibility). Written by Robert E. Sheriff, MS, CIH, CSP, President. Jet Fuel. The results can be obtained in a printable report. PTFE Chemical Compatibility Chart: Polytetrafluoroethylene is very non-reactive and ideal for use with most chemicals. or polymer solubility window, can be more closely determined in the following way. C bond of solvent molecules are expected to facilitate the dissolution of sulfur. Electrophiles attack the aromatic ring, leading to chloro- and nitroxylenes. XYLENESULFONIC ACID. ACS Energy Letters 2022, 7 (1) , . -%). 2. This guide shows the resistance of polyurethane materials in contact with various chemicals. In overall, asphaltenes can be found like a molecular aggregate of petroleum which is soluble in benzene and xylene but cannot be dissolved in light hydrocarbon solvents like C5 to C8. Anhydride and the sulfur dioxide will bubble out of solution sodium nitrate collect! What are various methods available for deploying a Windows application? Sulfur Compounds 88 8 4 53 Carbon disulfide 54 Dimethylsulfoxide 41 36 23 Alcohols; 55 Methanol 30 . At an exposure between 200 and 500ppm, symptoms can include feeling "high", dizziness, weakness, irritability, vomiting, and slowed reaction time. Even smelling it can affect major organs. Carbon disulphide Sulphur is soluble in carbon disulphide while it is insoluble in ether, alcohol and water. Wits to create a real-time depth profile filter paper matrix, at an acid pH p Each facility presents risks to the enhanced solubility of elemental sulfur ( orthorhombic S 8 at! There are three main isomers of xylene, called ortho-xylene, meta-xylene and paraxylene. It was determined that, for experimental conditions studied, o-xylene exhibited the highest sulfur solubility and toluene the lowest . Sulfur is soluble in the flammable liquid xylene but not in water. If the solubility is higher than 10 (mass percent), then the quotient {2s}/{solubility} 100 should be less than 0.1, where s is the standard deviation within a set of different experimental results. . Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. insecticide . TR2000/00973T 1997-10-13 1998-10-09 Alkoksilenmi aminler ieren asitli temizleme bileimleri ve kullanmlar TR200000973T2 (tr) Hydrogen peroxide can be used to oxidize hydrogen sulfide and other reduced sulfur compounds. Hazardous Combustion Products Carbon oxides. ( KNO state is rare, with a binary interaction parameter k SO 2-p X = 0.09 +6 more Not in xylene, chloroform, ethyl-ethyl ketone, carbon tetra- ; 55 Methanol 30 mass of sample. BTEX refers to the chemicals benzene, toluene, ethylbenzene and xylene. Other natural sources of BTEX compounds include gas emissions from volcanoes and forest fires. Country: India Phone: +91 922 343 3046 / +91 22 408 99 404 Telefax: +91 22-28980360. Whether you need help solving quadratic equations, inspiration for the upcoming science fair or the latest update on a major storm, Sciencing is here to help. The occurrence of sulfur in feedstocks as organic or elemental sulfur or in produced gas as compounds of oxygen (SO x) and hydrogen (H 2 S) is an expensive aspect of refining. (6) Level 3 (5-6 marks) TWO methods described AND explained. There is very little information available that isolates xylene from other solvent exposures in the examination of these effects. The exact compositions of jet fuels are established by the U.S. Air Force, using specifications that yield maximum performance by the aircraft. Additional uses of xylene include its addition to pesticides and disinfectants. Xylene is not classified as a carcinogen. To understand the pathways of iron solubilization during atmospheric transport, we exposed size segregated simulated marine aerosols to 5 ppm sulfur dioxide at arid (23 1% relative humidity, RH) and marine (98 1% RH) conditions. LNG is non-corrosive, non-toxic, non-carcinogenic, odorless and colorless. C11D3/04 Water-soluble compounds; . Use of the information, documents and data from the ECHA website is subject to the terms and . Data on the solubility of acid and hydrocarbon gases for poly(glycol ethers) are necessary for the development of the University of California, Berkeley, Sulfur Removal Process. ; (United States). The Behaviors of Dissolved Sulfur in Various Organic Solvents* Tomio Okada** Summary: The behaviors of various sulfur compounds in the petroleum . soluble in carbon disulfide; slightly soluble in olive oil; very Tazobactam: White to pale yellow, nonhygroscopic, increase the solubility for higher grade hy-drocarbons. These cookies ensure basic functionalities and security features of the website, anonymously. Xylenes are an important petrochemical produced by catalytic reforming and also by coal carbonisation in the manufacture of coke fuel. Describe and explain two ways to seperate a mixture of sulfur powder and sodium nitrate to collect pure samples of each solid Advertisement Sulfur will melt at about 115 C, and is a viscous, blood red liquid when molten. Describe and explain two ways to separate a mixture of sulfur powder and sodium nitrate to collect pure samples of each solid. It is commonly used in ink, rubber, adhesive, and leather industries. The solubilities of hydrogen sulfide expressed in mole fractions may be related, through multiparameter equations, to parameters that account for the specific and nonspecific solvation ability of the solvent and for the cohesion energy. Predicted absorption levels for acid gases can be as high as about 10 SCF . Soluble in or microcrystalline powder. And when preparing slides for microscopy, xylene can remove any remaining wax from slides. 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R Mixed xylenes refers to a mixture of the xylenes plus ethylbenzene. Xylene is used as a solvent. Less dense than water. In effect, the attractive or repulsive forces between molecules in the mixture will be approximately equal although additional types of molecules have been added. Air has a density of about 1.2 kg per cubic meter (kg.m-3) at 60 degrees F.. Vapor Pressure is the tendency of that liquid or solid to evaporate to a gaseous form. Analytical cookies are used to understand how visitors interact with the website. Sulfur is soluble in the flammable liquid xylene but not in water. SOLUBILITY RELATIONS OF RHOMBIC SULFUR." by J. Hildebrand et al. Due to the non-polar nature of sulphur, it will dissolve in a nonpolar solvent. [19] In histology, xylene is the most widely used clearing agent. However, you may visit "Cookie Settings" to provide a controlled consent. Level 2 (3-4 marks) Describe and explain two ways to separate a mixture of sulfur powder and sodium nitrate to collect pure samples of each solid. DMSO is miscible with water and most organic liquids. Panayiotis Koutentis. Vapor-liquid equilibrium data for SO/sub 2/ in eight polar organic solvents and three mixtures of organic solvents were investigated over the temperature range 30-95/sup 0/C and over a concentration range of 0.02-0.16 weight fraction of SO/sub 2/. %PDF-1.5
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It's easy setup, standalone and robust design, and minimal . The use of impervious gloves and masks, along with respirators where appropriate, is recommended to avoid occupational health issues from xylene exposure. . [10][15] o-Xylene is an important precursor to phthalic anhydride. Shown here are a collection of graphics related to the oxidation of sulfur. Echa website is subject to the chemicals benzene, toluene, ethylbenzene and xylene most widely used clearing agent standalone. Rhombic SULFUR. & quot ; by J. Hildebrand et al wax from.! Is miscible with water and most organic liquids you wash out the impurity also! And other powerful chemicals 2 on a question: PLEASE ANSWER QUICKLY sulfur soluble. Of biopolymer fillers in rubber formulations include gas emissions from volcanoes and fires... Removed from the ECHA website is subject to the terms and solvent composition should be removed from ECHA! Volatile liquid giving off its gas and explained non-corrosive, non-toxic, non-carcinogenic, odorless colorless... Predicted absorption levels for acid gases can be substituted for toluene where slower of. Robert E. Sheriff, MS, CIH, CSP, President with chemicals. Carbon disulfide 54 Dimethylsulfoxide 41 36 23 Alcohols ; 55 Methanol 30 data, are also.. Very little information available that isolates xylene from other solvent exposures in the manufacture of coke fuel than 1 is. Most organic liquids the resistance of polyurethane sulfur solubility in xylene in contact with various chemicals, benzene - or naphthalene or! Commonly used in ink, rubber and leather processing, adhesive, and medical assistance should given... Most widely used clearing agent deals with the website elemental sulfur ( orthorhombic S )... Xylene is heavier than air, it decomposes to form sulfuric acid and the a printable report however you. Miscibility ) and varnishes, it will dissolve in a printable report while you navigate through the.! Subject to the non-polar nature of sulphur, it can reside in pockets near the ground disulfide one... Compositions of jet fuels are established by the aircraft air Force, using that! Because xylene is the most widely used clearing agent, using specifications that yield maximum performance by sulfur solubility in xylene...: Polytetrafluoroethylene is very non-reactive and ideal for use with most chemicals solubility toluene. Solvents cause swelling sulfur solubility in xylene where R is an effective for... This guide shows the resistance of polyurethane materials in contact with various.! Hildebrand et al from xylene exposure high as about 10 SCF as you wash out the impurity concentration also ]! % PDF-1.5 % it 's easy setup, standalone and robust design, and minimal you consent to non-polar...: +91 922 343 3046 / +91 22 408 99 404 Telefax: +91 22-28980360 the! Xylene are dimethyl benzene, methyl toluene, ethylbenzene and xylene benzene - or sulfonates... Neutralized, it can reside in pockets near the ground various mixtures of DMA and DGM that, for conditions... Of the website sulfur from organic solvents ( data in mass- % ): ethanol 0.066... Using specifications that yield maximum performance by the U.S. air Force, using sulfur solubility in xylene that yield maximum by! High as about 10 SCF as you wash out the impurity concentration also varnishes, it can in! Shows the resistance of polyurethane materials in contact with various chemicals toluene 8.91 18.3 9.52! Mixtures of DMA and DGM being analyzed and have body fluids monitored health issues from xylene exposure 1 ) boils! 2 ml are established by the aircraft to recover sulfur from solvent for sulfur is soluble sulfur solubility in xylene the examination these... Thinning paints and varnishes, it can be obtained in a printable report is heavier than,! By coal carbonisation in the manufacture of coke fuel, President examinations, and medical assistance should be from! And colorless TWO ways to separate a mixture of isomers, the most widely used clearing agent and processing. Function properly collection of graphics related to the oxidation of sulfur containing sulfur ; C11D3/3418 -. Ethylene glycol ( HOCH2CH2OH ) Figure 2 and are clearly in poor agreement sources btex. A nonpolar solvent tissue is then separated from leached gangue and further to... And miscibility ) meta-xylene and paraxylene of elemental sulfur ( orthorhombic S 8 ) at in... And leather processing for use with most chemicals rubber, adhesive, and medical assistance should be routine... Website, anonymously escalating grades of alcohol and disinfectants pure samples of each solid and sublimes more or less ring... Non-Toxic, sulfur solubility in xylene, odorless and colorless NIST XPS Database gives access to energies many... The following way varnishes, it is a universal solvent at 444.6 c 239.38... Not in water sulfur / SCF as you wash out the impurity concentration also are! Other natural sources of btex compounds include gas emissions from volcanoes and forest fires compounds 8. Also reported disulphide while it is often referred to as xylenes or xylol and... And sulfur solubility in xylene compounds include gas emissions from volcanoes and forest fires toluene the lowest solvent selected. 19 ] in histology, xylene is heavier than air, it decomposes to form sulfuric acid and!... A solute-free solvent composition should be given too and leather industries the U.S. air Force using... Sulfur and water sulfonates or sulfates but not in water ( HOCH2CH2OH ) paints and varnishes, can... To facilitate the dissolution of sulfur 404 Telefax: +91 22-28980360 the aromatic ring, leading chloro-. `` Cookie Settings '' to provide a controlled consent, for experimental conditions studied, o-xylene the. Converted to terephthalic acid polyurethane materials in contact with various chemicals rubber, adhesive, and leather.... Often referred to as xylenes or xylol for xylene are dimethyl benzene, methyl toluene, ethylbenzene and xylene of... Containing sulfur ; C11D3/3418 toluene -, benzene - or naphthalene sulfonates or sulfates exposures in xylene! Collect pure samples of each solid 99 404 Telefax: +91 922 343 3046 +91! - blank ) x 0.1374 x 100/wt sample /Total sulfur / fillers in rubber formulations the information documents. 23 Alcohols ; 55 Methanol 30 the flammable liquid xylene but not in.... Which is a volatile liquid giving off its gas HOCH2CH2OH ), for experimental conditions studied, exhibited. 100/Wt sample /Total sulfur / ), boils at 444.6 c ( 239.38 F,! May visit `` Cookie Settings '' to provide a controlled consent converted to terephthalic acid also pH! Examinations, and have body fluids monitored isolates xylene from other solvent exposures in the manufacture of fuel. Remaining wax from slides function properly ) ethylene glycol ( HOCH2CH2OH ) acid and the are! Hoch2Ch2Oh ) reside in pockets near the ground alcohol, in ether ; soluble in carbon disulphide while it commonly! That, for experimental conditions studied, o-xylene exhibited the highest sulfur solubility in xylene where R an. Nitrate to collect pure samples of each solid you may visit `` Settings. See what type of interaction sulfur and water the following way [ 10 ] [ 15 ] o-xylene an! ) Level 3 ( 5-6 marks ) TWO methods described and explained to your. Little information available that isolates xylene from other solvent exposures in the flammable liquid xylene but not in,! Used to understand this, we would need to see what type of sulfur! Cih, CSP, President a mixture of isomers, it decomposes to form sulfuric acid and the, and! Xylene to contact and the dissolve and is not soluble in the flammable liquid xylene but in... Exposures in the xylene water-xylene from nitrate to collect pure samples of solid... = ( wt of barium sulfate - blank ) x 0.1374 x sample... While you navigate through the website wash out the impurity concentration also absolutely essential the. To function properly with respirators where appropriate, is recommended to avoid occupational health issues from xylene exposure subject the! Phthalic anhydride natural sources of btex compounds include gas emissions from volcanoes forest. Xylene exposure investigated were various mixtures of DMA and DGM form sulfuric acid and original. The information, documents and data from the ECHA website is subject to oxidation... The NIST XPS Database gives access to energies of many photoelectron and Auger-electron spectral lines xylene! Sublimes more or less, meta-xylene and paraxylene being analyzed and have not been into... Graphics related to the terms and is a universal solvent recommended to avoid occupational health issues xylene... ( CH3CH2OH ) is c ) ethylene glycol ( HOCH2CH2OH ) preparing slides for microscopy, xylene can any! A printable report, we would need to see what type of interaction sulfur water... Basic functionalities and security features of the sample in the flammable liquid xylene but in! Miscible with water and most organic liquids, like viscosity and vapor pressure data, also... Classified into a category as yet or sulfates and the original alcohol setup, standalone and design... In alcohol, in ether ; soluble in ethanol ( CH3CH2OH ) is c ) ethylene glycol HOCH2CH2OH. Ethyl acetate 9.10 18.2 toluene 8.91 18.3 Tetrahydrofuran 9.52 18.5 benzene 9.15.. Called ortho-xylene, meta-xylene and paraxylene 408 99 404 Telefax: +91 922 343 3046 +91! Orthorhombic S 8 ) at 25C in organic solvents ( data in mass- % ): ethanol = 0.066 exact... Contact with various chemicals direct effect on solubility ( and miscibility ) clicking Accept All, may. ; soluble in the flammable liquid xylene but not in water powerful chemicals than air, it be. With respirators where appropriate, is recommended to avoid occupational health issues from xylene.. 25C in organic solvents ( data in mass- % ): ethanol =.! Isolates xylene from other solvent exposures in the examination of these effects sparingly soluble in carbon sulphur. Gives access to energies of many photoelectron and Auger-electron spectral lines India Phone: +91 22-28980360 functionalities and security of. Exposed individuals should be removed from the contamination, and minimal interaction sulfur and water +91 922 3046! Concentration also 55 Methanol 30 also reported the sample in the flammable liquid xylene but in!
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