PARAXYLENE
Paraxylene is also known as PX or P-Xylene. Para xylene is a colorless, flammable liquid that has a sweet odour. Paraxylene is primarily used as a basic raw material in the manufacture of purified terepthalic acid (PTA). PTA and MEG produces polyethylene terephthalate (PET) saturated polyester polymers. Polyesters are used to produce fibers (POY/PSF) & rigid packaging units. PET bottles are widely used for its superior mechanical & barrier properties for packaging aerated beverages & portable water.
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| PROPERTIES | SPECIFICATION | TEST METHOD |
|---|---|---|
| Appearance, Visual Inspection | Clear liquid free sediment and haze at ambient temperature | Visual |
| Purity, wt . % | 99.7 Min | UOP 720 / ASTM D5917 |
| Non Aromatics, wt . % | 0.05 Max | UOP 720 / ASTM D5917 |
| Total of MX, OX & EB, wt% | 0.25 Max | UOP 720 / ASTM D5917 |
| Total Sulfur, Wt ppm | 1 Max | ASTM D5453 |
| Chloride , Wt ppm | 1 Max | ASTM D4929 |
| Bromine Index, mg / 100 gm | 20 Max | ASTM D5776 |
| Acid wash color | 2 Max | ASTM D848 |
| Color , Pt - Co Scale | 10 Max | ASTM D 1209 |
| Distillation Range @ 760 mm Hg, .C | 1 incl. 138.3 | ASTM D850 |
| Specific Gravity (15.6 .C) | 0824 Min 0.866 Max | ASTM D4052 |
| Meta Xylene, Wt .% | To Report | UOP 720/ ASTM D5917 |
| Ortho Xylene, Wt . % | To Report | UOP 720/ ASTM D5917 |
| Ethyl Benzene, Wt % | To Report | UOP 720/ ASTM D5917 |
| Toulene, Wt ppm | To Report | UOP 720/ ASTM D5917 |
| Benzene, Wt ppm | To Report | UOP 720/ ASTM D5917 |