Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Pyrophoric ignition

In finely divided form, hafnium is pyrophoric, igniting in air spontaneously. However, bulk metal reacts slowly in oxygen or air above 400°C. The rate of oxidation increases with temperature. The product is hafnium dioxide, Hf02. It combines with nitrogen, carbon, boron, sulfur and silicon at very high temperatures to form hafnium nitride HfN, hafnium boride HfB, hafnium sulfide HfSi2, respectively. Nitride formation occurs at 900°C. [Pg.332]

Pyrophoric Igniting on contact with air (or frictional sparking)... [Pg.1949]

CHLOROBIS (2-METHYLPROPYL)-ALUMINUM ( 1 7 7 9 - 2 5 - 5 ) [(CH3)2CHCH2]2A1C1 Pyrophoric ignites spontaneously in air (flashpoint 0°F/-18°C). Reacts with air, forming hydrogen chloride and aluminum oxide fumes. Violent, explosive reaction with water. Reacts with steam, acids, alcohols, amines, ammonium persulfate, bromine dioxide, carbon dioxide. [Pg.238]

DIETHYL ZINC (557-20-0) C HioZn Highly flammable liquid (Fire Rating 4). Pyrophoric ignites spontaneously on contact with air or oxidizers. Violent decomposition reaction with water, forming flammable ethane gas. Explosive decomposition occurs... [Pg.356]

GERMANE (7782-65-2) GeH Highly flammable, mechanical shock-sensitive, and poisonous gas. Pyrophoric ignites spon-... [Pg.520]

See other pages where Pyrophoric ignition is mentioned: [Pg.21]    [Pg.458]    [Pg.59]    [Pg.77]    [Pg.206]    [Pg.514]    [Pg.451]    [Pg.21]    [Pg.451]    [Pg.43]    [Pg.43]    [Pg.144]    [Pg.188]    [Pg.241]    [Pg.319]    [Pg.337]    [Pg.366]    [Pg.366]    [Pg.366]    [Pg.402]    [Pg.451]    [Pg.520]    [Pg.554]    [Pg.556]    [Pg.742]    [Pg.872]    [Pg.939]    [Pg.942]    [Pg.947]    [Pg.1047]    [Pg.1047]    [Pg.1066]    [Pg.1081]    [Pg.1089]    [Pg.1093]    [Pg.1094]    [Pg.1107]    [Pg.188]    [Pg.188]    [Pg.219]    [Pg.232]    [Pg.288]    [Pg.292]    [Pg.339]   
See also in sourсe #XX -- [ Pg.187 ]



SEARCH



Ignition sources pyrophoric materials

Pyrophorics

© 2024 chempedia.info