The rate of metal corrosion is greater when the corrosive is stronger and the temperature is higher. When acids attack metals, hydrogen gas is often given off. This is a flammable gas which can burn or explode if an ignition source is present. Common bases, such as sodium hydroxide and potassium hydroxide, can also attack some metals like aluminum, zinc, galvanized metal, and tin to produce hydrogen gas. The MSDS for a particular corrosive should explain which metals or other materials, such as plastics or wood, it will attack.
Some corrosives are also flammable or combustible and can easily catch fire and burn or explode.
Some corrosives are incompatible with other chemicals. They may undergo dangerous chemical reactions and give off toxic or explosive products if they contact each other. The MSDSs and the labels on the containers should explain all of the hazards for the corrosive materials that you work with. OSH Answers Search Help OSH Answers Search is designed to help you specifically target items about Occupational Health and Safety that are explained in the OSH Answers portion of our site.