Tris(2,4-dimethylphenyl) phosphate

Tris(2,4-dimethylphenyl) phosphate is an organophosphate compound with the molecular formula C24H27O4P and CAS number 25155-23-1. This chemical substance has a molecular weight of 410.4 g/mol and belongs to the class of aryl phosphate esters. It is classified as a reproductive toxicant category 1B, indicating serious concerns for human fertility or development, and requires careful handling in industrial applications.

Tris(2,4-dimethylphenyl) phosphate is typically a colorless to pale yellow liquid or solid at room temperature with low volatility. As an organophosphate ester, it exhibits good thermal stability and low water solubility but dissolves well in organic solvents. The compound has flame-retardant properties due to its phosphorus content and shows resistance to hydrolysis under normal conditions.

Tris(2,4-dimethylphenyl) phosphate is primarily used as a flame retardant in various polymer applications, including plastics, textiles, and electronic components. It serves as a plasticizer in PVC formulations and provides fire-resistant properties to materials. The compound is also utilized in industrial coatings and adhesives where flame retardancy is required, particularly in construction and automotive industries.

Tris(2,4-dimethylphenyl) phosphate must be handled with extreme caution due to its Repr. 1B classification. Use appropriate personal protective equipment including nitrile gloves, safety goggles, and respiratory protection when necessary. Work in well-ventilated areas or under fume hoods to minimize inhalation exposure. Avoid skin contact and implement strict hygiene measures, including thorough hand washing after handling.

Tris(2,4-dimethylphenyl) phosphate should be stored in tightly sealed containers in a cool, dry, and well-ventilated area away from heat sources and direct sunlight. Keep containers upright and ensure proper labeling with hazard information. Store separately from incompatible materials such as strong oxidizing agents. Maintain storage temperatures below 25°C and implement appropriate containment measures to prevent environmental release.

In case of skin contact with tris(2,4-dimethylphenyl) phosphate, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, rinse immediately with plenty of water for at least 15 minutes and seek medical attention. If inhaled, move to fresh air immediately. Seek immediate medical attention in all cases due to reproductive toxicity concerns.

Tris(2,4-dimethylphenyl) phosphate must be disposed of as hazardous waste through licensed waste management companies in accordance with local and EU regulations. Do not discharge into sewers, waterways, or soil due to environmental persistence concerns. Incineration at high temperatures in specialized facilities is typically the preferred disposal method. Consult local environmental authorities for specific disposal requirements and approved waste handlers.

Tris(2,4-dimethylphenyl) phosphate is classified as ADR Class 9 (miscellaneous dangerous goods), Packing Group III for transport purposes. Use appropriate UN-specification packaging and ensure proper hazard labeling and documentation. Transport vehicles must comply with ADR regulations including equipment requirements and driver training. Avoid transport during extreme weather conditions and ensure emergency response information is readily available.

Tris(2,4-dimethylphenyl) phosphate is subject to REACH regulation requiring registration for commercial use in the EU. The substance must be classified and labeled according to CLP regulation with Repr. 1B classification and GHS08 pictogram. While not currently listed as SVHC, its reproductive toxicity requires compliance with occupational exposure limits and risk assessment procedures under various national and EU chemical safety regulations.

Tris(2,4-dimethylphenyl) phosphate is available through OYSI, a specialized European distributor of technical chemicals serving industrial customers across the continent. OYSI provides this substance with proper safety documentation, regulatory compliance support, and technical expertise. Contact OYSI directly for availability, specifications, and regulatory guidance to ensure proper handling and compliance with European chemical regulations.