For any procurement manager, R&D scientist, or product formulator, understanding the precise chemical profile of a substance is fundamental. Triethyl Phosphate (TEP), a widely used organophosphorus compound, is no exception. With its CAS number 78-40-0, TEP possesses a unique set of physical and chemical properties that dictate its suitability for various industrial applications. As a committed Triethyl Phosphate manufacturer and supplier in China, we provide a detailed breakdown of its essential characteristics and related information, enabling informed purchasing decisions.

At its core, Triethyl Phosphate is the triethyl ester of phosphoric acid, with the chemical formula C6H15O4P and a molecular weight of 182.15 g/mol. Its appearance is that of a colorless, transparent liquid, often described as having a mild odor. This visual clarity and consistent appearance are indicators of high purity, a trait we prioritize in our manufacturing process. Key physical parameters include a boiling point of approximately 215°C, which positions it as a high-boiling solvent, and a melting point of around -56°C, ensuring it remains liquid under most ambient storage conditions. Its density is typically measured at 1.072 g/cm³.

Solubility is a critical factor for any solvent or additive. TEP exhibits excellent miscibility with water and is highly soluble in common organic solvents such as ethanol, ether, and benzene. This broad solubility makes it an effective medium for dissolving a wide range of substances, facilitating its use in complex formulations and reaction mixtures. Furthermore, its assay typically exceeds 99.5%, indicating a very low level of impurities. Associated parameters like acid value (≤0.05 mg KOH/g) and water content (≤0.20%) are meticulously controlled to ensure batch-to-batch consistency and high performance.

Beyond its intrinsic properties, TEP is also regulated and characterized for safe handling and transport. Its CAS number, 78-40-0, is the standard identifier in chemical databases globally. For export purposes, TEP is generally classified as a general cargo, not subject to dangerous goods regulations, simplifying international shipping. Information regarding its harmonized system (HS) code (29199000) and tax rates is readily available for trade facilitation. Proper storage recommendations include keeping it in a tightly closed container in a cool, dry, and well-ventilated area, away from incompatible materials.

For purchasers, obtaining detailed technical data sheets (TDS), certificates of analysis (COA), and material safety data sheets (MSDS) is crucial. We, as a leading Triethyl Phosphate supplier in China, provide these documents to ensure full transparency and compliance. When you choose to buy TEP from us, you are investing in a chemical that is not only versatile and effective but also backed by thorough documentation and quality control. We invite you to contact us for a quote on our high-purity Triethyl Phosphate and to discuss your specific application requirements.