Method for fire extinguishment of liquid chlorosilane compound

Details Method for fire extinguishment of liquid chlorosilane compound Method for fire extinguishment of liquid chlorosilane compound

1987-09-02

1989-05-16

Locker, Howard J.

Compositions

Fire-extinguishing

169 46, 169 47, 252 8, C09K 2100

Patent

active

048307629

ABSTRACT:
The invention provides a rapid and reliable method for extinguishment of fire on a chlorosilane compound such as trichlorosilane which is hardly extinguishable once set on fire by any conventional fire-extinguishing methods. The inventive method comprises sprinkling an inert siliceous powder composed of porous particles of specified silica or silica-alumina content having a specified particle diameter, pore diameter and porosity over the surface of the burning chlorosilane compound. The efficiency of fire-extinguishment can further be enhanced when sprinkling of the porous siliceous powder is followed by spraying of water or a highly halogenated hydrocarbon compound, e.g., monobromo monochloromethane and carbon tetrachloride, over the siliceous powder.

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