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Polyacrylonitrile (PAN) is a synthetic, semicrystalline organic polymer resin, with the linear formula (CH 2 CHCN) n. [2] Almost all PAN resins are copolymers with acrylonitrile as the main monomer.
In organic chemistry, peroxyacyl nitrates (also known as Acyl peroxy nitrates, APN or PANs) are powerful respiratory and eye irritants present in photochemical smog. They are nitrates produced in the thermal equilibrium between organic peroxy radicals by the gas -phase oxidation of a variety of volatile organic compounds (VOCs), or by aldehydes ...
The 3 substrates of this enzyme are 5,10-methylenetetrahydrofolate, 3-methyl-2-oxobutanoate, and H 2 O, whereas its two products are tetrahydrofolate and 2-dehydropantoate. This enzyme belongs to the family of transferases that transfer one-carbon groups, specifically the hydroxymethyl-, formyl- and related transferases.
A close relative to tetramantane (a higher homologue of adamantane), its proper name is nonacyclo[11.7.1.1 12,18.0 3,16.0 4,13.0 5,10.0 6,14.0 7,11.0 15,20]docosane. Because its unusual ethano-bridge was a deviation from the standard hydrocarbon caged rearrangements, it came to be known as bastardane—the unwanted child.
The natural concentration of PAN in the atmosphere is below 0.1 μg/m 3. Measurements in German cities showed values up to 25 μg/m 3. Peak values above 200 μg/m 3 have been measured in Los Angeles in the second half of the 20th century (1 ppm of PAN corresponds to 4370 μg/m 3). Due to the complexity of the measurement setup, only sporadic ...
61-54-1 C 10 H 12 O: anethole: C 10 H 12 O: estragole: C 10 H 12 O 2: hinokitiol: C 10 H 12 O 2: eugenol: C 10 H 12 O 2: isoeugenol: C 10 H 12 O 2: pseudoisoeugenol: C 10 H 12 O 3: coniferyl alcohol: C 10 H 13 N 5 O 4: adenosine: 58-61-7 C 10 H 14 ClNS N-tert-Butylbenzenesulfinimidoyl chloride: 49591-20-0 C 10 H 14 Cl 2 O 4 Ti Titanium bis ...
where A and B are reactants C is a product a, b, and c are stoichiometric coefficients,. the reaction rate is often found to have the form: = [] [] Here is the reaction rate constant that depends on temperature, and [A] and [B] are the molar concentrations of substances A and B in moles per unit volume of solution, assuming the reaction is taking place throughout the volume of the ...
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