Xylene – dimethylbenzene – Xylol

Description

What is Xylene?

Xylene, also known as dimethylbenzene, is an aromatic hydrocarbon with the chemical formula C₆H₄(CH₃)₂. It exists as a mixture of three isomers: orthoxylene , metaxylene, and paraxylene , which differ in the placement of the two methyl groups on the benzene ring. Xylene is a colorless, flammable liquid with a characteristic odor and is obtained primarily from petroleum or coal tar.

Chemical properties:

• Chemical formula: C₆H₄(CH₃)₂
• Physical state: Colorless liquid
• Scent: Aromatic
• Solubility: Moderately soluble in water, freely soluble in organic solvents such as alcohol and ether
• Boiling Point: About 138-144 °C

Use of Xylene

Xylene is mainly used as a solvent for organic substances, such as resins, paints and greases. It is used to thin paints, coatings and adhesives, making these products easier to apply and more evenly drying.

The substance is also often used as a cleaning agent in laboratories and industrial processes, thanks to its excellent grease and oil removing properties. For example, xylene is used in the maintenance of machines and technical installations.

In the chemical industry, xylene serves as a raw material for the production of various other chemicals. A good example of this is the synthesis of terephthalic acid, an important building block for the production of polyethylene terephthalate (PET).

Xylene is also used as a fuel additive . It increases the octane rating of fuels, resulting in more efficient combustion and better engine performance. Although this use is less common than other applications, xylene plays a role in optimizing fuels in specific situations.

Health and Safety

Danger

Hazard statements (H phrases)

• H226: Flammable liquid and vapour.
• H304: May be fatal if swallowed and enters airways.
• H312+H332: Harmful in contact with skin and if inhaled.
• H315: Causes skin irritation.
• H319: Causes serious eye irritation.
• H335: May cause respiratory irritation.
• H373: May cause damage to organs through prolonged or repeated exposure.

Precautionary measures (P-phrases)

• P210: Keep away from heat, sparks, open flames or hot surfaces. Do not smoke.
• P260: Do not breathe mist/vapours/spray.
• P301+P310: IF SWALLOWED: Immediately call a POISON CENTER.
• P302+P352: IF ON SKIN: Wash with plenty of soap and water.
• P331: DO NOT induce vomiting.

FREQUENTLY ASKED QUESTIONS – FAQ

Is Xylene toxic?
Yes, the substance can be toxic by inhalation, ingestion or skin contact in high concentrations. Exposure to vapours may cause dizziness, headache, nausea and irritation of eyes, skin and respiratory tract. Long-term exposure may have more serious effects on the nervous system, liver and kidneys.

In which products is Xylene commonly found?
It is commonly found in paints, lacquers, coatings, adhesives and thinners due to its excellent solvent properties, as well as in cleaning agents and laboratory chemicals for technical maintenance.

Is Xylene Dangerous?

If used incorrectly or exposed for long periods, it can be dangerous. It is highly flammable, and inhalation of its fumes can have adverse effects on health. Direct contact with xylene can cause skin irritation, and prolonged exposure can lead to more serious health problems. It is therefore important to take safety precautions, such as wearing gloves , safety glasses , and a dust mask , and to work in a well-ventilated area.

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