1,3,5-trimethylbenzene

1,3,5-trimethylbenzene is an aromatic hydrocarbon compound with the molecular formula C9H12 and CAS number 108-67-8. It belongs to the family of trimethylbenzenes, featuring three methyl groups attached to a benzene ring in symmetrical positions. With a molecular weight of 120.19 g/mol, this flammable liquid is classified as a hazardous substance requiring proper handling and storage precautions.

1,3,5-trimethylbenzene is a colorless to pale yellow liquid at room temperature with a characteristic aromatic odor. It has low water solubility but dissolves readily in organic solvents such as alcohol, ether, and other hydrocarbons. The compound exhibits typical aromatic properties with a density lower than water and moderate volatility, making it suitable for various industrial applications requiring organic solvents.

1,3,5-trimethylbenzene is primarily used as a solvent in industrial applications, particularly in the production of resins, coatings, and adhesives. It serves as an intermediate in chemical synthesis and is utilized in the manufacture of specialty chemicals. The compound also finds applications in laboratory settings as an extraction solvent and in analytical chemistry procedures where aromatic solvents are required.

1,3,5-trimethylbenzene requires careful handling due to its flammable nature and potential health effects. Use appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and ensure adequate ventilation to prevent vapor inhalation. Avoid ignition sources, static electricity, and direct skin contact. Work in well-ventilated areas or under fume hoods, and have fire extinguishing equipment readily available during handling operations.

1,3,5-trimethylbenzene should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and ignition points. Keep containers in secondary containment and separate from oxidizing agents and incompatible materials. Storage areas should be equipped with appropriate fire suppression systems and spill control measures. Maintain storage temperatures below 30°C and protect from direct sunlight to prevent vapor buildup.

In case of skin contact with 1,3,5-trimethylbenzene, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. If inhaled, move the person to fresh air and seek medical attention if breathing difficulties occur. For eye contact, flush immediately with clean water for 15 minutes. If ingested, do not induce vomiting and seek immediate medical assistance.

1,3,5-trimethylbenzene must be disposed of as hazardous waste according to local and national environmental regulations. Contact licensed waste disposal companies for proper collection and treatment. Do not discharge into sewers, waterways, or soil. Small quantities can be disposed of through incineration at authorized facilities equipped with appropriate emission controls. Always consult local authorities for specific disposal requirements and approved waste treatment facilities.

1,3,5-trimethylbenzene is classified as ADR Class 3 (flammable liquids), Packing Group III for transportation purposes. It must be packaged in UN-approved containers with proper hazard labels including GHS02, GHS07, and GHS09 pictograms. Transport vehicles require appropriate placarding and emergency equipment. Drivers must hold valid ADR certificates, and transport documentation must include proper shipping names and hazard classifications according to dangerous goods regulations.

1,3,5-trimethylbenzene is regulated under REACH registration requirements in Europe and classified according to CLP regulation with hazard classes including Flammable Liquid Category 3, STOT SE 3, and Aquatic Chronic 2. It carries a 'Warning' signal word and requires appropriate safety data sheets. While not currently listed as a Substance of Very High Concern (SVHC), users must comply with occupational exposure limits and environmental protection measures.

1,3,5-trimethylbenzene is available through OYSI, a specialized European distributor of technical chemicals and industrial raw materials. OYSI provides reliable supply chains across Europe with proper documentation, safety data sheets, and regulatory compliance support. Contact OYSI's technical sales team for product availability, specifications, and delivery options. They offer professional guidance on handling requirements and can assist with regulatory compliance for your specific application needs.