Xylene, chemical formula C8H10, a mixture of xylene or xylene aromatic hydrocarbons, consisting of a benzene ring with two methyl groups at different locations. There are three isomers: orthoxylene (CAS number 95-47-6), orthoxylene (CAS number 108-38-3), and paraxylene (CAS number 106-42-3). The three isomers of xylene, C8H10, or by the semi-structural formula C6H4(CH3)2. In industry, xylene refers to a mixture of these isomers.
Xylene is a major petrochemical produced in the manufacture of coke fuel from coal by catalytic reforming. It makes up about 0.5-1% of crude oil and is found in small batches of gasoline and aircraft fuel. From the extracted product of catalytic reforming called "reforming oil", xylene is the main product as part of BTX aromatics (xylene, benzene and toluene). The mixture is a slightly greasy, colorless liquid that is used as a solvent. Xylene was named in 1851 after it was discovered as a component of wood tar. Millions of tons are produced every year. In 2011, in Singapore, a global consortium began construction of the world's largest xylene plant.
On October 27, 2017, the preliminary list of carcinogens published by the World Health Organization's International Agency for Research on Cancer was collated for reference, and xylene was in the list of 3 types of carcinogens.
Chinese name: xylene
Foreign name: Xylenes
Chemical formula: C8H10
Molecular weight: 106.165
Melting point: -34 ℃
Boiling point: 137 to 140 ℃
Density: 0.86 kg/m³
Flash point: 25 ℃
Relative vapor density (g/m: 3.7
Refractive index: 1.497
Spontaneous ignition point or ignition temperature (° C: 463.8)
Upper explosion limit (%,V/V: 7)
Lower explosive limit (%,V/V: 1.1)
Solubility: can be miscible with ethanol, ether, trichloromethane and other organic solvents, insoluble in water.
1. Keep the storage device sealed, stored in a cool and dry place, and ensure that the work room has good ventilation or exhaust device.
2. The packaging and storage of the product refer to benzene. Packaging, marking, storage and delivery acceptance shall be carried out according to ZBE300005.
Application
1. It is used as a solvent for nitro spray paint, paint, adhesive and varnish, and as a raw material and rubber assistant for the manufacture of aniline, phenol, picric acid, dye, artificial musk, synthetic fiber, medicine, fragrance, insecticide, etc
2. Used to determine the moisture in the compound. Solvents and cleaning agents for precision optical instruments and electronics industry.
3. Used as solvent, cleaning agent for precision optical instruments and electronic industry.
4. Used in electronics industry, often used as cleaning agent and some photoresist solvent.
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Company Introduction
Shandong DESENLAI Chemical Co., Ltd. was established in July 2011, headquartered in Tianqiao District, Jinan City, Shandong Province.
With more than ten years of fine chemical business foundation, DSL Chemical is committed to building the most valuable chemical trading company in the whole industrial chain in China. With advanced marketing concept combined with modern management mode, the company provides customers with quality products and services and comprehensive "all-around" solutions.
The company adheres to the goal of green and sustainable development, and has long been committed to the operation of various fine chemical products, involving lithium new energy, biodegradable materials and other green energy fields. Such as NMP, butyrate, BDO, adipic acid, glycol and so on.
