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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
CAS : 108-38-3
formula : 0.4
molecular weight : 106.16
boiling point : melting point of 139 ° C
: -48-140 ° C

Chinese name : m-xylene; 1,3-2 toluene; 1,3-dimethoxy-phenyl

English name : 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

nature Description : 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.

production methods :

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, 140-150 ° C cut fractions 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, vice-m-xylene.

purposes : chiefly for solvents, used in the production of acid in turn production of unsaturated polyester resins and coatings, also used in the production of acid-methyl; Isophthalonitrile, medicine lidocaine; Oxygen A cefazolin, the new pan - such as video. Can also be used spices; Color film was 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.


Notice:Each item can have many explanations from different angels. If you want grasp the item comprehensively,please see below "more details data".
Structure:
More Detailed Data:
1) 1,3-Xylene;1,3-Dimethylbenzene;m-Xylene;m-Dimethylbenzene;Benzene, 1,3-dimethyl-
2) m-xylene;1,3-dimethylbenzene
3) m-xylene
4) 1,3-xylene;p-xylene
5) 1,3-xylene;p-xylene
6) Xylene
7) dimethyl-Benzene;Xylene;Dimethylbenzene;ai3-02209-x;dimethyl-benzen;caswell no 906;epa pesticide chemical code 086802;ksylen
8) Toluene;Methylbenzene;methyl-Benzene;antisal 1a;methyl-benzen
9) 2,4-dimethyl-Benzenamine;2,4-Dimethylaniline;2,4-Xylidine;1-amino-2,4-dimethylbenzene;2,4-dimethylbenzenamine;2,4-dimethylphenylamine;2-methyl-p-toluidin;4-amino-1,3-dimethylbenzene;4-amino-1,3-xylene;4-amino-3-methyltoluene;4-methyl-o-toluidine;2,4-dimethyl-anilin
10) Toluene;Methylbenzene;Toluol;Benzene, methyl-;Methacide;methyl-Benzene;Methylbenzol;Phenyl methane
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