Ortho-Xylene (o-Xylene), also known as 1,2-dimethylbenzene, is an aromatic hydrocarbon widely used in the chemical and manufacturing industries. It belongs to the xylene isomer family, along with m-xylene and para-xylene.
Its chemical formula is C8H10. It is a colorless, flammable liquid with a characteristic sweet odor. Ortho-xylene is mainly produced through petroleum refining and catalytic reforming processes.
Due to its high solubility and chemical stability, ortho-xylene is an important raw material for solvents, coatings, plasticizers, dyes, and chemical intermediates.
CAS 95-47-6 o-Xylene/1,2-dimethylbenzene
Purity, %：≥99%
CAS Number: 95-47-6
Appearance: Colorless liquid
Molecular Formula: C8H10
Molecular Weight: 106.17 g/mol
Odor: Aromatic sweet smell
Boiling Point: 144 °C
Melting Point: -25 °C
Density: 0.88 g/cm³
Flash Point: Approx. 17 °C
Solubility in Water: Slightly soluble
o-Xylene Chemical Formula:
The chemical formula of o-xylene is C6H4(CH3)2 or C8H10. It is an aromatic hydrocarbon, specifically 1,2-dimethylbenzene, characterized by two methyl groups attached to adjacent carbon atoms on the benzene ring.
- The structural formula is shown below:
Key Physical and Chemical Properties of o-Xylene
1. Excellent Solubility
CAS 95-47-6 o-Xylene exhibits excellent solubility for a wide range of organic compounds and is widely used in industries such as paints, coatings, adhesives, printing inks, and rubber processing. Its moderate evaporation rate effectively optimizes the leveling and drying properties of coatings.
2. Excellent Chemical Stability
Under normal storage and handling conditions, o-Xylene liquid maintains stable chemical properties and is not easily decomposed, making it ideal as a raw material for industrial synthesis and supporting long-distance bulk transportation.
3. Flammability
Ortho-Xylene is a highly flammable liquid. When exposed to high temperatures, electrostatic sparks, or open flames, its vapor can mix with air to form a potentially explosive mixture.
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ortho-xylene Uses in industry
1. Chemical intermediates:
Primarily used in the production of phthalic anhydride, o-xylene is a key raw material for plasticizers and alkyd resins.
2. Solvents:
Widely used in the printing, rubber, and leather industries. Diluents: Used in paints, varnishes, and coatings.
3. Polyester production:
Used in the production of polyester fibers and resins.
Is ortho-xylene Hazardous?
CAS 95-47-6 ortho-xylene is a typical aromatic solvent. Short-term exposure may cause eye and skin irritation, headache, dizziness and respiratory discomfort, while long-term or high-concentration exposure may have adverse effects on the human nervous system and liver.
Safe Handling Guidelines
- Hazard Class: Class 3 highly flammable liquid and vapor.
- Safety Precautions: Keep away from heat, sparks, open flames and hot areas; smoking is prohibited. Use explosion-proof electrical and ventilation devices.
- Protective Equipment: Wear nitrile gloves, safety goggles and work protective clothing. Wear respiratory protection when exposure exceeds workplace limits.
- Storage: Keep in a cool, well-ventilated area with containers tightly sealed.
- First Aid
- Skin contact: wash thoroughly with soap and water.
- Inhalation: move to fresh air; get medical help if discomfort continues.
- If swallowed: do not induce vomiting.
- Spillage Handling: Clean up spills with sand or diatomaceous earth, and keep waste away from sewer drains.
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