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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 ...
The Biopharmaceutics Classification System (BCS) is a system to differentiate drugs on the basis of their solubility and permeability. [1] This system restricts the prediction using the parameters solubility and intestinal permeability. The solubility classification is based on a United States Pharmacopoeia (USP) aperture.
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 ...
Overeating can cause indigestion and stomach pain, per Cleveland Clinic. When you eat until you’re 100 percent full (and beyond that), you slow down digestion, absorption, and metabolism ...
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]
CClF 2 CCl 2 F → C 2 F 3 Cl 2 + Cl• Cl• + O 3 → ClO• + O 2. This reaction is followed by: ClO• + O → Cl• + O 2. The process regenerates Cl• to destroy more O 3. The Cl• will destroy an average of 100,000 O 3 molecules during its atmospheric lifetime of 1–2 years. [12]
A recent operation in California uncovered more than 2.2 million pieces of fake cannabis packaging that officials say was being used to sidestep the state’s legal cannabis requirements.
In statistics, the 68–95–99.7 rule, also known as the empirical rule, and sometimes abbreviated 3sr, is a shorthand used to remember the percentage of values that lie within an interval estimate in a normal distribution: approximately 68%, 95%, and 99.7% of the values lie within one, two, and three standard deviations of the mean, respectively.