Specification :

CAS No.: 95-47-6
Other Names: 1, 2-Dimethylbenzene; ortho-xylene
The structure simple: H3C-( C6H4) -CH3
Molecular formula: C8H10 EINECS No.: 202-422-2

Molecular weight: 106.17 ( according to the 2005 international relative Atom mass)
2. Nature
O-xylene as low toxic and irritating odour Colorless transparent liquid.
Melting point: -25° C
Boiling point: 144° C
Explosive limit: 1.1% -7.0% ( volume fraction) .
Insoluble in water, benzene, ethanol, ether and carbon chloride mixture. Flammable!

Item Excellent Grade
Appearance Clear, without precipitates
Purity, % 98min
Carbon aromatic non-aromatic hydrocarbons, % ( mass fraction) 1.0 max
Chromaticity ( Platinum-cobalt color number) 10max
Pickling acid Colorimetry layer color should be darker than potassium dichromate to 0.15g/ L standards than liquid colors
Total sulphur, mg/ kg 1.0max
Water soluble acid, alkali non-free
Distillation ( 101.325kPa) ° C 2max ( including 144.4)
Nonvolatile, mg/ 100mL 2max

Application:
For the production of phthalic anhydride, raw material for chemical products such as pesticides , coating and solvents.