pyrophoric material

pyrophoric material

[‚pī·rə‚fȯr·ik mə′tir·ē·əl]
(chemistry)
A material that spontaneously ignites in air below 113°C (45°C), such as fine metal powder, alkali metal, partially or fully alkylated metal or nonmetal hydride, and metal carbonyl.
References in periodicals archive ?
If one controls the rate at which a pyrophoric material is exposed to air, the rate and temperature of the burning can be customized.
Instead, Saudi Aramco facilities used to have temporary storage areas to store these dangerous pyrophoric materials until they are transported to specialised approved waste management companies.
Pyrophoric materials are substances which have an auto ignition temperature which is below room temperature.
The presence of ignition sources, such as hot plates and Bunsen burners, the use of pyrophoric materials and the inherent volatility of the various chemicals and compounds that are commonly found in fume hoods all add up to a serious fire risk.
The Netzsch-Condux Air Classifier can be used for both coarse and fine classification applications on all powders from d97 = 100 pm to d97 = 2 [micro]m, including cosmetic powders; glass and glass frit; metal carbides, oxides, and nitrides; powder coatings; resins; silica; pyrophoric materials, etc.
Alloy Surfaces (a subsidiary of the British Chemring Group) for instance, focuses on infrared decoys and has developed Special Material Decoys (SMD) which use patented pyrophoric materials to radiate in-band infrared energy as a decoy.
The system can either use conventional radar chaff or pyrophoric materials, which create a high-temperature cloud to decoy IR missiles.
These are highly exothermic powdered pyrophoric materials that give off heat during a chemical reaction.
To the idea of a simple heat source to decoy IR-guided missiles, the Raytheon (Goleta, CA) Comet system adds multi-spectral heat sources, dynamic trajectory (kinematic adaption), area burning (non-spot source), and two-color heat sources using pyrophoric materials.
Dennis Brestovansky, Vice-President of Gas Product Operations, said, "The important benefits VAC brings to etch and CVD processes using highly corrosive and pyrophoric materials should allow us to expand the process gas market we serve with our innovative gas storage and delivery technologies.
An earlier concept by Raytheon to incorporate such pyrophoric materials for dispensing via a derivative of the company's AN/ALE-50 towed decoy has apparently been abandoned, since the available volume of a towed decoy would not provide space for a sufficient amount of pyrophoric materials to give the requisite period of sustained protection.
Alloy Surfaces specializes in flares using pyrophoric materials which produce an IR signature upon exposure to air, while the flares produced by Kilgore use the more traditional magnesium/Teflon compounds which are ignited with a firing squib.