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Bromochlorodifluoromethane (BCF), also referred to by the code numbers Halon 1211 and Freon 12B1, is a haloalkane with the chemical formula C F 2 Cl Br.It is used for fire suppression, especially for expensive equipment or items that could be damaged by the residue from other types of extinguishers. [1]
Halotron I was originally introduced in 1992 as a replacement for Halon 1211(bromochlorodifluoromethane), a substance known for its significant ozone-depleting properties. While Halon 1211 has a global warming potential (GWP) of 2,070, [ 2 ] Halotron I's GWP is considerably lower at 77, reflecting a 96% reduction in environmental impact.
It is also the primary component of the Halotron I fire-extinguishing mixture. Its ozone depletion potential is ODP = 0.012, and global warming potential is GWP = 76. HCFC-123 will eventually be phased out under the current schedule of the Montreal Protocol. It was discontinued in new HVAC equipment in 2020 in developed countries but will still ...
Warning sign for fire suppression system Civilian Halon 1301 fire extinguisher, USA, 1980s. Halon 1301 was developed in a joint venture between the U.S. Army and Purdue University in the late 1940's, [5] and became a DuPont product in 1954.
Mark Cuban Cost Plus Drug Company (MCCPDC), doing business as Cost Plus Drugs, is an American public benefit corporation, founded in 2022 [1] with its main headquarters located in Dallas, Texas. The company is focused on the pharmacy distribution of drugs with a stated goal to lower the prices for generic drugs by removing middlemen, such as ...
A space elevator built according to the Edwards proposal is estimated to have total cost of about $40 billion (that figure includes $1.56 billions operational costs for first 10 years). Subsequent space elevators are estimated to cost only $14.3 billion each. [14] For comparison, in potentially the same time frame as the elevator:
Swedish Air Force Hangar Protected with 7000 kg Clean Agent FS49C2. Clean agent FS 49 C2 is an environmentally engineered, human safe, fast acting Clean Agent fire extinguishing gas for gaseous fire suppression installed in a suited fire suppression system.
Free refills are seen as a good way to attract customers to an establishment, especially one whose beverages are not their primary source of income. [1] Due to the extremely low cost of fountain soft drinks (especially the beverage itself, not including the cost of the cup, lid and straw), often offering a profit margin of 80-82%, establishments tend to offer free refills as a sales gimmick. [3]