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1,3-Xylene;1,3-Dimethylbenzene;m-Xylene;m-Dimethylbenzene;Benzene, 1,3-dimethyl-
Molecular formula : C8H10
MW : 106.17
CAS No. :108-38-3

nature : colorless, transparent liquid, a strong aroma. -47.872 ° C melting point, boiling point, 139.1 ° C, flash point of 25 ° C and relative density (15 / 4 ° C) 0.8684 (20 / 4 ° C) 0.8642, refractive index 1.4972,1.4971, the flash point of 29 .44 ° C, spontaneous 527.78 points ° C Do not dissolve in water, soluble in alcohol and ether.

Preparation : 1. Distillation of mixed xylene, cut fractions 130-140 ° C, plus sulfate sulfonation, the reaction temperature is 80-90 ° C, the reaction 3.5h, not separation of xylene sulfonate, after hydrolysis, distillation, cut 140 -150 ° C fraction derived products. 2. Raw materials transfer alkylation of toluene in the bioreactor, transalkylation, xylene and benzene formation. The mixed xylene isomerization reactor, making some of m-xylene isomerization generation of xylene, in a stable reaction tower removed after the light distillate Section alkyl transfer to enter the mixed xylene from C9 fraction tower, the tower was right xylene higher levels of mixed xylene, tower above reactor components for the C9 . Tata stable from the top of mixed xylene into the adsorption separation section, the use of non-solid molecular sieve adsorbent right xylene, desorption with purity as high as 99.9% of the products of p-xylene, m-xylene product.

purposes : chiefly for solvents, used in the production of acid in turn production of unsaturated polyester resins and coatings, also used for the production of methyl benzoate between, isophthalonitrile, medicine lidocaine, oxygen A cefazolin, the new pan - such as video. Spices can also be used, color film, the oil-soluble synthetic agents of raw materials and dye intermediates. Inter-xylene production of technical difficulties, China's output of small, they yield or quality can not meet the market needs.


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Structure:
More Detailed Data:
1) 1,3-Xylene;m-Dimethylbenzene;1,3-dimethyl-Benzene;m-xylene;1,3-dimethylbenzene;3-methyltoluene;3-xylene;[srp] m-methyltoluene;1,3-dimethyl-benzen;m-methyltoluene
2) m-xylene
3) m-xylene;1,3-dimethylbenzene
4) 1,3-xylene;p-xylene
5) 1,3-xylene;p-xylene
6) Xylene
7) 2-Chloro-m-xylene;2-Chloro-1,3-dimethylbenzene
8) 2,6-Dimethylaniline;2,6-dimethyl-Benzenamine;2-Amino-m-xylene;2,6-xylidine;1-amino-2,6-dimethylbenzene;2,6-dimethylbenzenamine;2,6-dimethylphenylamine;2,6-xylylamine;2-amino-1,3-dimethylbenzene;2-amino-1,3-xylene;2,6-dimethyl-anilin
9) 2-Fluoro-1,3-dimethylbenzene;2-Fluoro-m-xylene;2,6-Dimethylfluorobenzene
10) Dimethylbenzene;Xylene
Notice Some description was translated by software and the data is only as a reference.
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