Colorless liquid was first used as an anesthetic for surgical procedures in 1842 when inhaled. This liquid is highly flammable and volatile properties. Generally refers to the simple such as ether. Ethoxy ethane is prone to Peroxidová and can form explosive diethyl ether peroxide formation, especially in old storage containers. Ether peroxides are higher boiling and contact explosives when dry. Symptoms of exposure may include severe cough, chest pain, difficulty breathing, nausea, headaches, vomiting and death.