A substance is pyrophoric (from Ancient Greek: πυροφόρος, pyrophoros, 'fire-bearing') if it ignites spontaneously in air at or below 54 °C (129 °F) (for gases) or within 5 minutes after coming …

Aug 1, 2024 · What is Pyrophoric? Pyrophoric is a property of certain materials or thermally unstable compounds that ignite spontaneously when they get in touch with the air. This …

Pyrophoric materials have the potential to spontaneously ignite upon exposure to the oxygen in air, and in many cases are also water reactive. Exposure to air or moisture can cause them to …

Aug 29, 2025 · Pyrophoric gases are substances with a unique and potentially dangerous characteristic: they ignite spontaneously upon exposure to air or moisture. This immediate …

Pyrophoric materials are substances that ignite instantly upon exposure to oxygen. They can also be water-reactive, where heat and hydrogen (a flammable gas) are produced.

The meaning of PYROPHORIC is igniting spontaneously.

Sep 24, 2025 · A pyrophoric gas is a chemical substance in gaseous form that ignites spontaneously when exposed to air at temperatures of 130°F (54.4°C) or below, without …

Refer to the Pyrophorics Identification Spreadsheet to determine if a chemical is pyrophoric and for detailed notes and information on specific chemicals.

Mar 17, 2025 · Pyrophoric materials are substances that, when in contact with air, ignite spontaneously, which can cause fires and explosions if not handled properly. This property, …

They are liquids and solids that will ignite spontaneously in the presence of oxygen and water. They must have limited to no exposure to the atmosphere. Exposure of these reagents to air …