Pyrophoric Chemical Safety

Any chemical that catches fire spontaneously when exposed to air (at or below 130F (54.4C)) can be classified as a pyrophoric chemical, though only those that do so in under 5min are classified as such under GHS guidelines. These can include solids, liquids, and gases. Because pyrophoric chemicals are reacting with the oxygen in the air, they are also typically water reactive. As will all general guidelines, specifics can vary from chemical to chemical, however, the following is typically true of handling pyrophoric chemicals. Individuals should wear flame-resistant lab coats/PPE and clothing made from polyester or other synthetic fabrics should be avoided. Pyrophoric chemicals are considered hazardous and should be treated as such during storage, handling (typically in a fume hood or glove box), and disposal. Examples of pyrophoric chemicals include alkali metals (e.g., potassium, sodium), metal powders, metal carbonyls, and many hydrides.

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