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Ethenone is a highly reactive gas (at standard conditions) and has a sharp irritating odour.It is only reasonably stable at low temperatures (−80 °C). It must therefore always be prepared for each use and processed immediately, otherwise a dimerization to diketene occurs or it reacts to polymers that are difficult to handle.
Cyclohexanone is produced by the oxidation of cyclohexane in air, typically using cobalt catalysts: [11]. C 6 H 12 + O 2 → (CH 2) 5 CO + H 2 O. This process forms cyclohexanol as a by-product, and this mixture, called "KA Oil" for ketone-alcohol oil, is the main feedstock for the production of adipic acid.
These toxic chemicals are avoided today in consideration of the fact that there are alternative water based, non-toxic heavy liquids like sodium polytungstate solutions. [1] With this relatively new heavy liquid densities up to 3.1 g·cm −3 can be adjusted . Adding parts of pulverulent tungsten carbide increases the density to 4.6 g·cm −3. [2]
5.1: Beryllium nitrate: UN 2465: 5.1: Dichloroisocyanuric acid, dry or Dichloroisocyanuric acid salts UN 2466: 5.1: Potassium superoxide: UN 2467? (UN No. no longer in use) Sodium percarbonates (UN No. no longer in use) [2] UN 2468: 5.1: Trichloroisocyanuric acid, dry UN 2469: 5.1: Zinc bromate: UN 2470: 6.1: Phenylacetonitrile, liquid UN 2471: ...
Cyclohexylamine is an organic compound, belonging to the aliphatic amine class. It is a colorless liquid, although, like many amines, samples are often colored due to contaminants.
114,19 g·mol −1 Appearance colorless liquid with a smell of alcohol [1] Density: 0,9339 g·cm −3 [2] Melting point: 19 °C (66 °F) [1] Boiling point:
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[1] It is produced industrially by the hydrogenation of cyclohexanone in the presence of hydrogen sulfide over a metal sulfide catalyst: C 6 H 10 O + H 2 S + H 2 → C 6 H 11 SH + H 2 O. It is also obtained by the addition of hydrogen sulfide to cyclohexene in the presence of nickel sulfide. [2]