Ethylene oxide solution (3.0 M in dichloromethane) serves as a key reactive intermediate in organic synthesis and industrial chemical production. It is used to manufacture ethylene glycol derivatives via hydrolysis, surfactants, ethanolamines, and other compounds through ring-opening and alkylation reactions. This makes it essential in the production of detergents, textiles, pharmaceuticals, and personal care products.

The solution form offers safer handling, reduced explosion risk, and controlled dosing compared to pure gaseous ethylene oxide, ideal for laboratory and closed-system industrial applications.

Gaseous ethylene oxide is widely used as a sterilizing agent for heat- and moisture-sensitive medical devices and equipment, effectively killing bacteria, viruses, and spores in healthcare settings, often in vacuum or penetration processes. However, the solution is primarily for synthetic uses.

Handle with extreme caution: it is highly flammable, toxic, and a potential carcinogen. Strict controls on temperature, pressure, ventilation, and personal protective equipment are required.