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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 ]
In 2012, the United States produced 25.3 trillion cubic feet of marketed natural gas, with an average wellhead value of $2.66 per thousand cubic feet, for a total wellhead value of $67.3 billion. [ 2] In 2013, the country produced 30.0 trillion cubic feet (TCF) of marketed gas. [ 3] With 7,545 billion cubic feet (BCF), the leading gas-producing ...
Chlorofluorocarbons ( CFCs) and hydrochlorofluorocarbons ( HCFCs) are fully or partly halogenated hydrocarbons that contain carbon (C), hydrogen (H), chlorine (Cl), and fluorine (F), produced as volatile derivatives of methane, ethane, and propane . The most common example is dichlorodifluoromethane (R-12). R-12 is also commonly called Freon ...
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The Baltimore Community Foundation ( BCF) is a community foundation created by and for the people of Baltimore to serve the current and future needs of the Baltimore region. The foundation distributed $30.7 million in 2020 to more than 1,500 nonprofit organizations in the Baltimore region and beyond. [1] It comprises more than 850 different ...
Other limitations of the data include: a) missing life cycle phases, and, b) uncertainty as to where to define the cut-off point in the global warming potential of an energy source. The latter is important in assessing a combined electrical grid in the real world, rather than the established practice of simply assessing the energy source in ...
Product lifetime or product lifespan is the time interval from when a product is sold to when it is discarded. [1] Product lifetime is slightly different from service life because the latter considers only the effective time the product is used. [1] It is also different from product economic life which refers to the point where maintaining a ...
The data in the 2018 column is taken from work funded by the Robert Wood Johnson Foundation for the 50 states and the District of Columbia; [9] from the World Bank for Guam, Puerto Rico and the U.S. Virgin Islands; and from the CIA World Factbook for American Samoa and the Northern Mariana Islands. [10] Data in the 2010 columns comes from ...