Triethyl phosphate

Triethyl phosphate is an organophosphorus compound with the molecular formula C6H15O4P and CAS number 78-40-0. This chemical substance has a molecular weight of 182.15 g/mol and belongs to the phosphate ester family. It is classified as Acute Tox. 4 under GHS regulations, indicating moderate acute toxicity. Triethyl phosphate appears as a colorless liquid and is widely used in various industrial applications due to its chemical stability and flame-retardant properties.

Triethyl phosphate is a colorless, odorless to slightly aromatic liquid at room temperature. It has good solubility in organic solvents and limited solubility in water. The compound exhibits thermal stability under normal conditions and has a relatively low vapor pressure. Its phosphate ester structure gives it flame-retardant characteristics, making it stable against combustion. These properties make it suitable for various industrial formulations where thermal stability and flame resistance are required.

Triethyl phosphate is primarily used as a flame retardant in plastics, textiles, and polymer applications. It serves as a plasticizer in various polymer formulations, improving flexibility and processability. The compound is also utilized as a solvent in chemical processes and as an intermediate in organic synthesis. Additionally, it finds applications in the production of pesticides and as a catalyst in certain chemical reactions, particularly in industries requiring flame-resistant materials.

Triethyl phosphate requires careful handling due to its Acute Tox. 4 classification and GHS07 pictogram indicating harmful effects. Always wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Ensure adequate ventilation in work areas and avoid inhalation of vapors. Handle in well-ventilated areas away from heat sources and open flames. Follow the warning label requirements and maintain proper hygiene practices, including thorough handwashing after handling.

Triethyl phosphate should be stored in tightly closed original containers in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep containers upright and protected from physical damage. Store separately from strong oxidizing agents and incompatible materials. Maintain storage temperatures within recommended ranges and ensure proper labeling according to GHS requirements. Storage areas should have appropriate spill containment measures and be accessible only to authorized personnel with proper training.

Triethyl phosphate exposure requires immediate action due to its harmful classification. For skin contact, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. In case of eye contact, rinse immediately with plenty of water for at least 15 minutes and seek medical attention. If inhaled, move the person to fresh air and seek medical advice if symptoms persist. For ingestion, do not induce vomiting and seek immediate medical attention.

Triethyl phosphate disposal must comply with local, national, and European waste regulations due to its hazardous classification. The substance should be treated as hazardous waste and disposed of through licensed waste management companies. Do not discharge into drains, water bodies, or soil. Small quantities can be incinerated in appropriate facilities with proper emission controls. Always consult local environmental authorities and follow the waste codes specified in the European Waste Catalogue for proper classification and disposal procedures.

Triethyl phosphate is classified under ADR as Class 6.1 (Toxic substances), Packing Group III, indicating moderate toxicity for transportation purposes. It must be packaged in UN-approved containers with proper labeling and documentation according to dangerous goods regulations. Transport vehicles must carry appropriate emergency equipment and placarding. Drivers require ADR training certification for Class 6.1 substances. Ensure proper securing of packages and compliance with routing restrictions where applicable under European transport regulations.

Triethyl phosphate is subject to various European chemical regulations including REACH registration requirements and CLP classification and labeling obligations. It must be classified as Acute Tox. 4 with appropriate warning labels and safety data sheets. The substance is not currently listed as a SVHC (Substance of Very High Concern) under REACH. Companies handling this chemical must comply with occupational health and safety regulations, environmental discharge limits, and proper waste management requirements as specified in European directives.

Triethyl phosphate is available through OYSI, a European distributor of technical chemicals offering reliable supply across European markets. OYSI provides this substance with full regulatory compliance, including proper CLP labeling, safety data sheets, and REACH registration documentation. As a specialized chemical distributor, OYSI ensures product quality and regulatory conformity for industrial customers requiring triethyl phosphate for their manufacturing processes and applications throughout Europe.