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2-Methyl-2-butene, 2m2b, 2-methylbut-2-ene, beta-isoamylene, or Trimmethylethylene is an alkene hydrocarbon with the molecular formula C 5 H 10. Used as a free radical scavenger in trichloromethane (chloroform) and dichloromethane (methylene chloride). It is also used to scavenge hypochlorous acid (HOCl) in the Pinnick oxidation.
Isoamylene is one of the three main byproducts of deep catalytic cracking (DCC), which is very similar to the operation of fluid catalytic cracking (FCC). The DCC uses vacuum gas oil (VGO) as a feedstock to produce primarily propylene, isobutylene, and isoamylene.
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A laboratory method of producing guanidine is gentle (180-190 °C) thermal decomposition of dry ammonium thiocyanate in anhydrous conditions: 3 NH 4 SCN → 2 CH 5 N 3 + H 2 S + CS 2. The commercial route involves a two step process starting with the reaction of dicyandiamide with ammonium salts.
a mineral acid with many industrial uses; commonly used in the laboratory preparation of hydrogen halides Phosphorus pentachloride: one of the most important phosphorus chlorides; a chlorinating reagent. Also used as a dehydrating agent for oximes which turn them into nitriles. Phosphorus tribromide: used for the conversion of alcohols to alkyl ...
A small amount of castor oil can be ingested relieve occasional constipation and is safe when used at the right dosage as directed by a doctor, Dr. Adil Bharucha, a gastroenterologist at the Mayo ...
Nutritionists Robin DeCicco of the New York area and Ilana Muhlstein of Los Angeles shared nutritious alternatives to typical Valentine's Day sweets such as chocolate, gummy candies and baked goods.
TBE-TAA-solutions remained in use as short-acting anesthetics for laboratory mice and rats. Such solutions are sometimes called Avertin , which was a brand name for the now discontinued TAA and TBE solution with a volume ratio of 0.5:1 made by Winthrop Laboratories . [ 16 ]