смешанный ксилол

solvent level xylene,the mixture of o-xylene,meta-xylene,p-xylene and ethylbenzene Chroma / Hazen units (platinum-cobalt color) under 20 Density (ρ20) / (g/cm3) 0.82 0.86 early distillation point ≥137.5 eventually distillation point ≤ 141.5 total distillation range ≤ 3 total sulfur content/(mg/kg) ≤ 3 evaporation residue mass fraction /(mg/100ml)≤ 5 neuter test:neutral pickling colorimetric:acid layer not deep in 1000ml dilute acids contained 0.5g heavy collaterals potassium standard solution usage:This mixture is mainly used for production of para-xylene, o-xylene of raw materials and paint solvents and aviation gasoline additive. and also drugs for otology.