Overview
Epichlorohydrin (ECH) is an organochlorine compound and an epoxide, primarily used as a chemical intermediate in the production of epoxy resins and other derivatives. Its high reactivity makes it valuable in various industrial processes, though it requires careful handling due to its toxicity and flammability. First synthesized in the 19th century, ECH has become a cornerstone of modern polymer chemistry. Its applications span industries such as adhesives, coatings, and pharmaceuticals, owing to its ability to form stable cross-linked polymers.
Physical and Chemical Properties
Epichlorohydrin is a volatile, colorless liquid with a characteristic pungent odor. It has a density of 1.18 g/cm³ and boils at 117.9°C. The compound is soluble in water and most organic solvents, facilitating its use in diverse chemical reactions. ECH is highly reactive, particularly in ring-opening reactions, which are crucial for epoxy resin synthesis. Its toxicity and flammability (flash point: 40°C) necessitate strict safety protocols during storage and handling to prevent accidents or exposure.
Main Applications
The primary use of epichlorohydrin is in the manufacture of epoxy resins, which are widely employed in coatings, adhesives, and composite materials. These resins offer excellent durability and chemical resistance, making them ideal for automotive, aerospace, and construction applications. ECH is also a key raw material for producing synthetic glycerin, used in pharmaceuticals and personal care products. Additionally, it serves in water treatment chemicals and as an intermediate in the synthesis of other specialty chemicals.
Safety and Storage
Due to its toxic and flammable nature, epichlorohydrin requires stringent safety measures. Exposure can cause severe skin, eye, and respiratory irritation, and long-term contact may increase cancer risk. Always use personal protective equipment (PPE) and ensure proper ventilation in workspaces. Storage should be in tightly sealed containers, away from heat sources and open flames. Facilities must comply with local regulations for hazardous chemicals, including spill containment and emergency response plans.
B2B Procurement Guide
When procuring epichlorohydrin, prioritize suppliers with verified certifications (e.g., ISO, REACH compliance). Confirm the product's purity (typically 99% or higher) and request safety data sheets (SDS) to ensure proper handling. Bulk purchases often reduce costs, but consider logistics and storage requirements. Evaluate suppliers based on reliability, delivery timelines, and adherence to environmental standards. Long-term contracts may offer price stability in volatile markets.