Wear gloves and aprons when handling corrosive materials. Do not wear open toed shoes; your feet must be completely covered; wear shoes that have rubber soles and no heels or sneakers. Safety glasses should be constructed of plastic of tempered glass. Eye protection must be worn at all times. The three types of eye protection are: If a chemical gets on a body part of eye, wash affected area with very large quantities of water, using the safety shower and/or eyewash station until medical assistance arrives. Remove contaminated clothing so that thorough washing can take place. Wipe up spills immediately with a very damp sponge (especially area around balances). Clean up potassium and sodium hydroxide quickly. Wear protective gloves, face mask, and neoprene apron when handling large quantities of corrosive chemicals. Let reagents, such as sulfuric acid, run down the outside of a bottle or flask and come in contact with your fingers.