Overview
N,N-Diethylhydroxylamine (DEHA) is an organic compound with the formula C4H11NO. It is a colorless to pale yellow liquid with a faint amine-like odor. DEHA is primarily known for its role as a polymerization inhibitor and antioxidant in various industrial processes. DEHA is synthesized through the reaction of diethylamine with hydrogen peroxide. Its ability to scavenge free radicals makes it valuable in preventing unwanted polymerization during the storage and transportation of monomers such as styrene and acrylic esters.
Physical and Chemical Properties
DEHA is a low-viscosity liquid with a density of 0.867 g/cm³ at 20°C. It has a boiling point of 125-126°C and a melting point of -60°C, making it stable under a wide range of temperatures. The compound is miscible with water and most organic solvents, including alcohols, ethers, and hydrocarbons. Chemically, DEHA acts as a strong reducing agent due to the presence of the hydroxylamine functional group. It reacts readily with oxidizing agents, making it useful in redox reactions and as a corrosion inhibitor in certain applications.
Main Applications
DEHA is widely used as a polymerization inhibitor in the production and storage of monomers such as styrene, butadiene, and acrylic esters. It prevents premature polymerization during distillation, transportation, and storage, ensuring product quality and safety. In the petroleum industry, DEHA serves as an antioxidant in fuels and lubricants, extending their shelf life by preventing oxidative degradation. It is also employed as a reducing agent in chemical synthesis, particularly in the production of pharmaceuticals and agrochemicals.
Safety and Storage
DEHA is classified as a flammable liquid and should be stored in a cool, dry, well-ventilated area away from heat sources and oxidizing agents. Proper grounding is essential to prevent static discharge during handling. Personal protective equipment (PPE), including gloves, goggles, and protective clothing, should be worn when handling DEHA. In case of skin or eye contact, rinse immediately with plenty of water and seek medical attention if irritation persists.
B2B Procurement Guide
When procuring DEHA, buyers should specify the required purity level, typically ranging from 95% to 99%. Packaging options include drums, IBCs, and bulk shipments, with prices varying based on volume and purity. It is advisable to source DEHA from reputable suppliers who provide certificates of analysis (CoA) and material safety data sheets (MSDS). Buyers should also consider logistics requirements, as DEHA may be subject to transportation regulations due to its flammability.
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