US2273515A - Fire-extinguishing liquid - Google Patents

Fire-extinguishing liquid Download PDF

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Publication number
US2273515A
US2273515A US299511A US29951139A US2273515A US 2273515 A US2273515 A US 2273515A US 299511 A US299511 A US 299511A US 29951139 A US29951139 A US 29951139A US 2273515 A US2273515 A US 2273515A
Authority
US
United States
Prior art keywords
fire
extinguishing
boiling
extinguishing liquid
bromide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US299511A
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English (en)
Inventor
Dachlauer Karl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GAF Chemicals Corp
Original Assignee
General Aniline and Film Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Aniline and Film Corp filed Critical General Aniline and Film Corp
Application granted granted Critical
Publication of US2273515A publication Critical patent/US2273515A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/0028—Liquid extinguishing substances
    • A62D1/0057—Polyhaloalkanes

Definitions

  • the present invention relates to a fire-extinguishing" liquid.
  • methyl bromide is used together with brominated hydrocarbons of higher boiling point such as ethylene bromide (boiling point 131 C.).
  • brominated hydrocarbons of higher boiling point such as ethylene bromide (boiling point 131 C.).
  • a certain improvement as to the use is attained thereby, but the poisonousness of the brominated hydrocarbons, especiallyof the methyl bromide, is not suificiently diminished thereby.
  • liquid fire-extinguishing agents which contain at least one halogen derivative of aliphatic hydrocarbons of low molecular weight having the general formula cHrplmBln wherein m, nand a: are at least one, and m+n+x is equal to 4.
  • a further essential advantage ofthe new compounds for use as fireextinguishing agents according to the present invention is that, in comparison with the substances hitherto used as fire-extinguishing agents,
  • Such a hand fire-extinguisher consists of apressure vessel wherein an ascending tube is inserted from above which nearly'extends to the bottom of the vessel.
  • the pressure vessel is partly filled with the extinguishing liquid and thereabove with compressed air which is fed by means of a pump or from a container.
  • the ascending tube is connected with a spraying nozzle, a valve being intercalated. On opening this valve the fire-extinguishing liquid is pressed out of the nozzle by the action of the compressed air and-is sprayed onto the burning matter.
  • the hand fire-extinguishers used are allof the same type and are filled each with 1 liter of liquid. The following liquids are used: methylene chloride, chloroform; carbon tetrachloride, methyl bromide, chloro-' bromomethane, ethylene bromide, 1-ch1oro-l.2- dibromoethane,- symmetrical dichlorodibromoethane and the mixture of equal parts of methyl J bromide and ethylene bromide.
  • chlorobromomethane l-chloro-1.2-dibromoethane and dichlorodibromoethane it is not possible with any of the said liquids, even not with the mixture of methyl bromide and ethylene bromide, to approximately stop the fire in the troughs filled with light benzine, though the entire content of the hand fireextinguisher has been consumed.
  • chlorobromomethane half of the content and in the case of chlorodibromoethane and of dichlorodibromoethane /3 of the content are sufiicient for completely suffocating the fire in a. trough.
  • a sheet iron tank (length: 45 cm.,breadth: 45 cm., height: 15 cm.) is placed in the center of a chamber of incombustible material (length: 2 m., breadth: 2 m'., height: 2 m.) which is open from above and, for the purpose of a good admission of air to the burning matter, is mounted on feet.
  • a chamber of incombustible material (length: 2 m., breadth: 2 m'., height: 2 m.) which is open from above and, for the purpose of a good admission of air to the burning matter, is mounted on feet.
  • the extinguishing liquids according to the present invention are also superior to perhalogenated derivatives 0! the hydrocarbons, even to such containing each chlorine and bromine.
  • I claim: 1. The process of arresting a flame which comprises directing into the atmosphere in the neiBhborhood of the flame a ch1oro-, bromoderivative of methane of the general formula CHxClmBI'n wherein m, n and z are at least one, and m-i-n-i-z is equal to 4.
  • the process of arresting a flame which comprises directing into the atmosphere in the neighborhood of the flame dichlorobromomethane.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing Compositions (AREA)
US299511A 1938-09-23 1939-10-14 Fire-extinguishing liquid Expired - Lifetime US2273515A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE219013X 1938-09-23

Publications (1)

Publication Number Publication Date
US2273515A true US2273515A (en) 1942-02-17

Family

ID=5831630

Family Applications (1)

Application Number Title Priority Date Filing Date
US299511A Expired - Lifetime US2273515A (en) 1938-09-23 1939-10-14 Fire-extinguishing liquid

Country Status (4)

Country Link
US (1) US2273515A (en))
CH (1) CH219013A (en))
FR (1) FR880409A (en))
IT (1) IT377033A (en))

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821257A (en) * 1955-12-09 1958-01-28 Fyr Fyter Co Non-corrosive bromochloromethane fire extinguisher composition and fire extinguishercontaining the composition
US2857971A (en) * 1955-05-16 1958-10-28 Ferris Products Co Inc Fire extinguisher
US2917116A (en) * 1958-02-17 1959-12-15 Gerald W Wyant Fire retarding device
WO1986005106A1 (en) * 1985-03-08 1986-09-12 Donovan Brian J Method for suppressing oil well fires

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2606857A (en) * 1951-01-11 1952-08-12 Dawson Joseph Carl Fumigating with ethylene bromide and methyl bromide

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2857971A (en) * 1955-05-16 1958-10-28 Ferris Products Co Inc Fire extinguisher
US2821257A (en) * 1955-12-09 1958-01-28 Fyr Fyter Co Non-corrosive bromochloromethane fire extinguisher composition and fire extinguishercontaining the composition
US2917116A (en) * 1958-02-17 1959-12-15 Gerald W Wyant Fire retarding device
WO1986005106A1 (en) * 1985-03-08 1986-09-12 Donovan Brian J Method for suppressing oil well fires

Also Published As

Publication number Publication date
FR880409A (fr) 1943-03-25
IT377033A (en))
CH219013A (de) 1942-01-15

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