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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 ]
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Tris (pentafluorophenyl)borane, sometimes referred to as "BCF", is the chemical compound (C6F5)3B. It is a white, volatile solid. The molecule consists of three pentafluorophenyl groups attached in a "paddle-wheel" manner to a central boron atom; the BC3 core is planar. It has been described as the “ideal Lewis acid ” because of its high ...
List of chemical elements. 118 chemical elements have been identified and named officially by IUPAC. A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z ). [ 1]
It has full lifetime guarantees for many of its products, such as hammers, screwdrivers and certain gauges. It also offers many limited lifetime guarantees and three-year guarantees on other products.
The Nintendo DS product line are the best-selling handheld consoles, selling 154.02 million units worldwide. The majority of sales came from the DS Lite at 93.86 million units. [5] A handheld game console is a lightweight device with a built-in screen, controls, speakers, [6] and has greater portability than a standard video game console. [2]
The fast-casual chain is offering one lucky winner a lifetime supply of free burgers. (Technically, you’ll get a 40-year supply of burgers, in the form of $31,200 in Chili’s gift cards, as ...
Glossary of music terminology. A variety of musical terms are encountered in printed scores, music reviews, and program notes. Most of the terms are Italian, in accordance with the Italian origins of many European musical conventions. Sometimes, the special musical meanings of these phrases differ from the original or current Italian meanings.