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Product overview
Xylene (dimethylbenzene, CAS 1330-20-7) is supplied as the commercial mixture of the three isomers ortho-, meta- and para-xylene together with a small amount of ethylbenzene. It is a clear, colorless liquid with a sweet aromatic odor, insoluble in water and miscible with alcohols, ketones and hydrocarbons. Mixed xylenes are the standard slow-evaporating aromatic solvent for alkyd, epoxy and chlorinated-rubber coatings.
The grade offered has a typical composition of 52.05 % m-xylene, 23.32 % p-xylene, 21.95 % o-xylene and 2.43 % ethylbenzene, with benzene ≤ 0.01 %, non-aromatics around 0.14 %, total sulfur ≤ 0.5 ppm, color ≤ 5 Pt-Co, copper corrosion 1A and a bromine index of 8.0 mg Br/100 g. The distillation range is 138.2–140.0 °C (span 1.8 °C) and the density 0.867 g/cm³.
Mixed xylenes boil at 137–140 °C and have a flash point of 77 °F (25 °C). They are transported as UN 1307, class 3, packing group III, and supplied by ChemPortal in steel drums, IBC totes and ISO tank containers.
Key features
- Typical isomer split 52 % m-, 23 % p-, 22 % o-xylene
- Benzene ≤ 0.01 %, total sulfur ≤ 0.5 ppm
- Distillation range 138.2–140.0 °C; density 0.867 g/cm³
- Color ≤ 5 Pt-Co, copper corrosion 1A
- UN 1307, class 3, PG III; drums, IBCs, ISO tanks
Applications
- Solvent and thinner for alkyd, epoxy and polyurethane paints
- Printing inks, adhesives and rubber cements
- Agrochemical and pesticide formulations
- Feedstock for para-xylene (PTA/PET) and ortho-xylene (phthalic anhydride)
- Cleaning, degreasing and laboratory solvent
- Blending component for high-octane gasoline
Analysis specification
| Parameter | Limit |
|---|---|
| Color Pt-Co | ≤ 5 |
| Density | 0.867 |
| Distillation range (760 mmHg) | 138.2–140.0 °C (range 1.8) |
| Non-aromatic content (mass fraction) % | 0.14 |
| Copper corrosion | 1A |
| Benzene content % | ≤ 0.01 |
| Ethylbenzene content % | 2.43 |
| o-Xylene % | 21.95 |
| m-Xylene % | 52.05 |
| p-Xylene % | 23.32 |
| Total sulfur content PPM | ≤ 0.5 |
| Bromine index (mgBr/100g) | 8.0 |
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Physical properties
- Appearance
- Clear liquid
- Boiling point
- 137-140 °C
- Flash point
- 77 °F (25 °C)
- Solubility
- Soluble
Identifiers
| CAS No. | 1330-20-7 |
| EINECS No. | 215-535-7 |
| HS code | 27073000 |
| Formula | C8H10 |
| Molecular weight | 106.165 g/mol |
| Synonyms | dimethylbenzene, mixed xylenes, xylol, xylenes isomer mixture, benzene dimethyl |
Transport & safety
- UN number
- UN 1307
- Hazard class
- Class 3
- Packing group
- PG III
- Hazard characteristic
- Flammable and toxic
Dangerous-goods classification and handling instructions are provided in the safety data sheet, available on request.
Packaging & logistics
Standard packaging options. Confirm the packaging, lot size and delivery terms with your quotation.
Frequently asked questions
What is the difference between mixed xylene and a single isomer?
Mixed xylene is the solvent grade containing all three isomers plus ethylbenzene; it is cheaper and perfectly suitable for paints and formulations. Single isomers (p-xylene for PET, o-xylene for phthalic anhydride) are separated when a pure chemical feedstock is required.
What is the benzene content?
≤ 0.01 %, which allows the solvent to be used in coatings and formulations where low benzene content is required. Each lot is accompanied by a certificate of analysis.
How should xylene be stored and handled?
In closed, grounded containers in a cool, ventilated area away from ignition sources; the flash point is 25 °C. It is transported as UN 1307, class 3, packing group III. See the SDS for exposure limits and protective equipment.
In what quantities is it available?
Steel drums, 1,000 L IBC totes and ISO tank containers, from part loads to bulk. Contact ChemPortal with the volume and destination port for a delivered quotation.
Published reference specifications. Confirm the current grade, SDS / TDS / COA, packaging and delivery terms with your quotation.