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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 ...
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 ]
Bioconcentration. In aquatic toxicology, bioconcentration is the accumulation of a water-borne chemical substance in an organism exposed to the water. [1][2] There are several ways in which to measure and assess bioaccumulation and bioconcentration. These include: octanol-water partition coefficients (K OW), bioconcentration factors (BCF ...
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Childcare. Pre-kindergarten (also called Pre-K or PK) is a voluntary classroom -based preschool program for children below the age of five in the United States, Canada, Turkey and Greece (when kindergarten starts). [1][2] It may be delivered through a preschool or within a reception year in elementary school. Pre-kindergartens play an important ...
Updated August 27, 2024 at 8:27 AM. WORCESTER - A loose dog is finally in a foster home after being on the run in Worcester for 555 days. Trappers with Missing Dogs Massachusetts (MDM) have been ...
September 3, 2024 at 11:03 PM. PALM BEACH COUNTY, Fla. — A former Florida doctor, who was found liable for $100 million last week in a medical malpractice case centered on an infant's botched ...
The Supreme Court declined to intervene in a long-shot lawsuit brought by Missouri attempting to block legal proceedings in former President Donald Trump's hush money case in New York.