Feb 11, 2022 · The boiling point of xylene is influenced by several factors, including: Molecular Structure: The three isomers of xylene (o-xylene, m-xylene, and p-xylene) have slightly different molecular structures, which can affect their boiling points. . Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file. Feb 7, 2018 · The bond length between methyl carbon and benzene ring carbon expands from 151 to 154 Å and shrinks again at the optimization state from 154 to 149 Å in o-xylene. They are useful as solvents, as additives to improve the octane rating of aviation fuels, and as raw materials in the manufacture of fibers, films, dyes, and other synthetic products. Xylene is unique in that it actually exists in three different forms or isomers. CAS #: 95-47-6 EC Number: 202-422-2 Molar Mass: 106. for o-Xylene/Carbon tetrachloride P = 760 mm Hg BP Temp. Jun 8, 2018 · The term "xylene" refers to any of three benzene derivative isomers that share the same chemical formula, C 6 H 4 (CH 3) 2, but differ in their molecular structure. The inter-molecular contacts determined in the structures of the meta and para compounds are closely related. Single crystals of2,3-dinitro-p-xylene and 2,3,5-trinitro-p-xylene were grown using theslow cooling method and we report the X-ray structure of the former. p-Xylene. Conclusions: Under the conditions Feb 27, 2013 · ortho -xylene Formula & Structure. Although the structure of m-xylene is different from that of o-xylene, the values of bond angles and bond lengths of methyl groups are almost the same as those of o-xylene . Equations of state for the xylene isomers (o-xylene, m-xylene, and p-xylene) and ethylbenzene have been developed with the use of the Helmholtz energy as the fundamental property with p-Xylene. , petroleum refineries, chemical plants), in p-Xylene. Our expert help has broken down your problem into an easy-to-learn solution you can count on. Groups of 50 male and 50 female F344/N rats were dermally administered 0, 60, 120 or 240 mg sodium xylene sulfonate/kg bw in 50% ethanol for 104 wk. Equations of state for the xylene isomers (o-xylene, m-xylene, and p-xylene) and ethylbenzene have been developed with the use of the Helmholtz energy as the fundamental property with Aug 31, 2005 · The mononitration of p-xylene canbe easily carried out at 30°C. , are very useful to locate compound suppliers or to find biological/physical properties. Excessive or over exposure to xylene can lead to edema of the lungs, which is a threat to life due to accumulation of fluid in the lung. The boiling point of m-xylene, as reported by the Agency for Toxic Substances and Disease Registry Feb 27, 2013 · ortho -xylene Formula & Structure. o-xylene. These different forms are referred to as isomers. SDS. It is one of the three isomers of dimethylbenzene known collectively as xylenes. There are tens if not hundreds of chemical structure databases around at the moment. m-Xylylenediamine is an organic compound with the formula C 6 H 4 (CH 2 NH 2) 2. At last,m-Xylene(108-38-3) safety, risk, hazard and MSDS, CAS,cas number,Use Xylene is produced primarily by the catalytic reforming of naphtha streams, which are rich in alicyclic hydrocarbons. CAS 95-47-6, EC Number 202-422-2, chemical formula C₆H₄ (CH₃)₂. Structure and properties Index of refraction, n D: 1. Structure: CAS Number: 1330-20-7 Molecular Weight: 106. Information on this page: Notes. The “p” stands for para, identifying that he two methyl groups in p-xylene occupy the diametrically opposite substituent positions Feb 27, 2013 · ortho -xylene Formula & Structure. C 8 H 10. 808697. The 3d structure may be viewed using Java or Javascript. g. A colorless oily liquid, it is produced by hydrogenation of isophthalonitrile. Some of them, such as PubChem, ChemExper, ChemSpider, Emolecules etc. Synonyms: 1,3-Dimethylbenzene. It is found in the mixed xylenes stream, which is a mixture of ortho-xylene, metaxylene (MX), and para-xylene (PX). Question: Name and write formulas for aromatic hydrocarbons Question Which of the following represents the structure of xylene, or dimethylbenzene? Select all that apply: CH5-CH3 CH= C CH CH-CH CH3 CH=C CH CH3-6 CH, CH CH C-CH3 "CH-CH₂. Nitro-p-xylene is easily nitrated to dinitro-p-xylene at atemperature of 80°C. Jun 23, 2021 · Moreover, the crystal structure confirmed that a 1:1 complex is formed, with a xylene molecule located in the central cavity of calix[4]arene. ortho-Xylene (1,2-dimethyl-benzene, o-xylene, or OX) is an aromatic compound that is commonly derived from crude oil sources. 2 Structure and properties. -Xylylenediamine. Equations of state for the xylene isomers (o-xylene, m-xylene, and p-xylene) and ethylbenzene have been developed with the use of the Helmholtz energy as the fundamental property with Mar 14, 2024 · Visit ChemicalBook To find more m-Xylene(108-38-3) information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. m-Xylene MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents. Molecular weight: 106. Jul 26, 2022 · Benze ne, as shown on the left, is an organic aromatic compound with many interesting properties. 5 Distillation data. IUPAC Standard InChIKey: URLKBWYHVLBVBO-UHFFFAOYSA-N. A xylene substituted by methyl groups at positions 1 and 2. Dec 26, 2023 · p-xylene is an aromatic hydrocarbon based on benzene with two methyl substituents with the chemical formula C8H10 or C6H4 (CH3)2. View Products on Sigmaaldrich. Groups of 50 male and 50 female B6C3F1 mice were dermally administered 0, 182, 364 or 727 mg sodium xylenesulfonate/kg bw in 50% ethanol for 104 to 105 wk. Equations of state for the xylene isomers (o-xylene, m-xylene, and p-xylene) and ethylbenzene have been developed with the use of the Helmholtz energy as the fundamental property with Chemical Structure of Xylene. 17 g/mol Appearance: Colorless liquid Boiling Point: 137-140 C Density: 0. Xylene isomers are of great importance in the petrochemi-cal industry because they are the basis for the synthesis of many organic compounds. To alleviate the low strength and unsatisfactory mass-transfer performance of conventional catalysts during xylene isomerization, a combined-structure catalyst is fabricated using three-dimensional (3D) printing technology. Xylene is produced primarily by the catalytic reforming of naphtha streams, which are rich in alicyclic hydrocarbons. But only two databases are currently providing synthesis or synthesis references Jan 20, 2024 · On the other hand, Zn doping introduces an acceptor level near the top of the valence band, adjusts the electronic structure and increases the oxygen vacancy defects of α-Fe 2 O 3 nanoparticles [32], [33], [34], which synergistically promote the catalytic oxidation of p-type α-Fe 2 O 3 semiconductor toward xylene gas and improve the surface p-Xylene. CoA. ChEBI ASCII Name. Structural Formula. Secondary ChEBI IDs. You can also browse global suppliers,vendor,prices,Price,manufacturers of m-Xylene(108-38-3). CHEBI:28063. Definition. 4 Vapor pressure of liquid. Options: Switch to calorie-based units. 4958 at 20 °C for p-Xylene/carbon tetrachloride P = 760 mm Hg BP Temp. (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. °C Equations of state for the xylene isomers (o-xylene, m-xylene, and p-xylene) and ethylbenzene have been developed with the use of the Helmholtz energy as the fundamental property with Chemical Economics Handbook. IUPAC Standard InChI:InChI=1S/C8H10/c1-7-3-5-8 (2)6-4-7/h3-6H,1-2H3 Copy. CAS Registry Number: 106-42-3. Equations of state for the xylene isomers (o-xylene, m-xylene, and p-xylene) and ethylbenzene have been developed with the use of the Helmholtz energy as the fundamental property with Xylene is produced primarily by the catalytic reforming of naphtha streams, which are rich in alicyclic hydrocarbons. Stars. There are three forms of xylene in which the methyl groups vary on the benzene ring: meta-xylene, ortho-xylene, and para-xylene (m-, o-, and p-xylene). CAS #: 108-38-3 EC Number: 203-576-3 Molar Mass: 106. Other names: m-Xylene; m-Dimethylbenzene; m-Xylol; 1,3-Dimethylbenzene; 1,3-Xylene; 2,4-Xylene; m-Methyltoluene; meta-Xylene; NSC 61769; UN 1307; 1,3-dimethylbenzene (m-xylene) Equations of state for the xylene isomers (o-xylene, m-xylene, and p-xylene) and ethylbenzene have been developed with the use of the Helmholtz energy as the fundamental property with 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. Xylenes (mixtures of ortho-, meta-, and para-isomers) are used as industrial solvents, synthetic intermediates, and solvents in commercial products such as paints, coatings, adhesive removers, and paint thinners; they are also a component of gasoline. Feb 27, 2013 · ortho -xylene Formula & Structure. Mar 3, 2018 · Metal–organic frameworks have previously been studied for the separation of hydrocarbon mixtures such as ethane/ethylene, propane/propylene, and C 6 alkane mixtures, among many others. Formula: C 8 H 10. 9,16–29 For example, frameworks with small pore apertures, such as Zn(2 Description. About ChemSynthesis. These isomers are known as ortho-xylene, meta-xylene, and para-xylene, distinguished by the different arrangements of the two methyl (-CH 3) groups attached to the six-carbon benzene ring. Xylene. m. Description; Catalogue Number: 108684: Synonyms: 1,4-Dimethylbenzene: Description: p-Xylene: Overview: EMSURE® grade solvents are suitable for a broad spectrum of classical lab applications, and are frequently used in regulated and highly demanding lab applications. Figure 1 shows the chemical structure of the xylene isomers and of ethylbenzene, and Table 1 gives additional information such as the critical points and molar masses. CAS Registry Number: 1330-20-7. Isotopologues: 1,4-Di(methyl-d3)benzene-d4; Other names: Benzene, 1,4-dimethyl-; p-Dimethylbenzene; p-Xylol; 1,4-Dimethylbenzene; 1,4-Xylene; p-Methyltoluene; para-Xylene; Chromar; Scintillar; 4-Methyltoluene; NSC 72419; UN 1307; 1,4-dimethyl-benzene ( p-xylene) Permanent link for this Jun 13, 2000 · The previously unknown structure of m-xylene was solved from the neutron powder diffraction data utilising a simulated annealing method and verified by a conventional Direct Methods solution using X-ray single crystal data. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). 1650. Equations of state for the xylene isomers (o-xylene, m-xylene, and p-xylene) and ethylbenzene have been developed with the use of the Helmholtz energy as the fundamental property with Feb 27, 2013 · ortho -xylene Formula & Structure. This entity has been manually annotated by the ChEBI Team. Unlike aliphatic (straight chain carbons) or other cyclic organic compounds, the structure of benzene (3 conjugated π bonds) allows benzene and its derived products to be useful in fields such as health, laboratory synthesis, and other applications such as rubber synthesis. 1 o-Xylene is mainly used for pro- Chemical Structure of Xylene. 15 In particular, some of these materials have been studied for the separation of xylene isomers based on size and shape selectivity. Description. CHEBI:44697, CHEBI:10611, CHEBI:25623. Synonyms: 1,2-Dimethylbenzene. 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. IUPAC Standard InChI: InChI=1S/C8H10/c1-7-3-5-8 (2)6-4-7/h3-6H,1-2H3. The trinitro-p-xylene can be obtained at 120°C. While very similar in structure, these three isomers have very different Equations of state for the xylene isomers (o-xylene, m-xylene, and p-xylene) and ethylbenzene have been developed with the use of the Helmholtz energy as the fundamental property with Description. It may also undergo chloromethylation in the presence of organic acids under organic-aqueous biphasic conditions to form a mixture of chloromethyl-2,4 Feb 27, 2013 · ortho -xylene Formula & Structure. Jul 1, 2022 · Para-xylene (PX) is an important material for the production of polyester fibers and resins; it is widely used in fuel and medical fields. Xylenes are released to the atmosphere primarily as fugitive emissions from industrial sources (e. Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript. Selective precipitation or crystallization by discrete macrocyclic hosts is an effective strategy to separate xylene isomers, because one of the isomers will preferentially bind to the host molecule and p-Xylene. Nov 23, 2015 · An autopsy done by Morley et al. Structure and properties. H226: Flammable liquid and vapour. com. o-Xylene for synthesis. H304: May be fatal if swallowed and enters airways. o-Xylene MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents. The aromatic reformate fractions consist mainly of benzene, toluene and mixed xylenes, xylenes representing the largest fraction. 17 g/mol Chemical Formula: C₆H₄ (CH₃)₂ Hill Formula: C₈H₁₀. Here’s the Description. 86 g/mL at 25 C Xylenes are a mixture of the three isomers of dimethylbenzene (1,2-Dimethylbenzene, 1,3-Dimethylbenzene, and 1,4-Dimethylbenzene). IUPAC Standard InChIKey:URLKBWYHVLBVBO-UHFFFAOYSA-N Copy. Xylene is a colorless, sweet-smelling liquid that catches on fire easily. Chemical Structure of Xylene. m-Xylene may be used in the synthesis of 2,4-dimethylbenzophenone via Friedel–Craft acylation with benzoyl chloride over iron-modified tungstophosphoric acid supported on titania. 3 Thermodynamic properties. pr ma xj rt mo ah py yu nv ta