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I heard that diethylbenzene can be divided into many types based on its purity. If any of you have information on this, please share it with me. Thank you
p-Diethylbenzene; p-Diethylbenzene; 1,4-Diethylbenzene; p-Diethylbenzene; 1,4-diethyl-Benzene; 1,4-Diethylbenzene; 1,4-diethyl-benzen; p-diethyl-benzen; p-ethylethylbenzene; PDEB; 1,4-diethylbenzene CAS: 105-05-5 Molecular formula: C10H14 Molecular weight: 134.22 1. Property description: Colorless liquid; Melting point: –42.8℃ ; Boiling point 183.9℃ ; Relative density: 0.863 ; Saturated vapor pressure 1.33 kPa/62.8℃ ; Flash point 56℃ ; Autoignition point 500. Insoluble in water, soluble in ethanol ; Benzene ; Various organic solvents such as carbon tetrachloride; as far as I know, they are available in two grades: 95% and 99.5%. This post was last edited by lifanwang on 2009-4-8 at 16:43.]
Diethylbenzene, also known as diethylbenzine, is a raw material for organic synthesis. I. Properties: A colorless liquid; the industrial grade is a mixture of the ortho, meta, and para isomers. Boiling range: 179.8–184.8 degrees; relative density: 0.865 (at 25 degrees); refractive index: 1.496; flash point: 56.6 degrees. Soluble in benzene, carbon tetrachloride, alcohols, and ethers. The properties of the three isomers are as follows: Name, o-diethylbenzene, m-diethylbenzene, p-diethylbenzene; Melting point, degrees: -31.4, -83.9, -48.2; Boiling point, degrees: 183.5, 181–182, 182–183; Relative density: 0.881, 0.864, 0.862 (at 20 degrees); Refractive index: 1.5026, 1.4955, 1.4967. In industrial use, o-diethylbenzene accounts for about 9.4%, m-diethylbenzene for about 61.5%, and p-diethylbenzene for about 29.1%. II. Quality indicators: The content is greater than or equal to 92%, and the pH value is 6–7. III. Production process: Industrially, diethylbenzene is a by-product of ethylbenzene production. At present, most ethylbenzene is obtained through the alkylation of benzene with ethylene, while a smaller amount is obtained by separating it from mixed xylene fractions. IV. Manufacturers: Fushun Petrochemical Company’s Second Oil Plant and Chemical Plastics Plant ; Shanghai Gaqiao Petrochemical Company ; Changzhou Petrochemical Plant.
The friend upstairs replied in great detail; thank you very much.