A pyrophoric substance (from Greek purophoros, "fire-bearing") will ignite spontaneously.
Pyrophoric scale is a material that can be burnt or ignited spontaneously when in contact with air, if struck or scratched.
The Meaning of Meaning was created in 1923.
the meaning is:I DO NOT KNOW I NEED THE MEANING 2!
meaning of bonding meaning of bonding
The first meaning of a word is referred to as "denotative meaning". This is the dictionary definition. The second meaning of a word is referred to as "connotative meaning". This is not in the dictionary.
Pyrophoric scale is a material that can be burnt or ignited spontaneously when in contact with air, if struck or scratched.
pyrophoric
Fine powders of hafnium are pyrophoric.
Neptunium as a powder is pyrophoric.
Neptunium is not combustible but pyrophoric as a powder.
Plutonium is pyrophoric as a fine powder.
Plutonium - as fine powders or flakes - can be pyrophoric.
Probably curium in powdered form is pyrophoric.
self heating or pyrophoric materials
self-heating or pyrophoric materials
Uranium is easily oxidized by oxygen.In powdered form is pyrophoric.
Any special precautions; but hafnium as a a fine powder can be pyrophoric.