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Acetonitrile is used mainly as a solvent in the purification of butadiene in refineries. Specifically, acetonitrile is fed into the top of a distillation column filled with hydrocarbons including butadiene, and as the acetonitrile falls down through the column, it absorbs the butadiene which is then sent from the bottom of the tower to a second separating tower.
In fact, the 2008–2009 acetonitrile shortage was caused by a decrease in demand for acrylonitrile. [10] 2 CH 3 −CH=CH 2 + 2 NH 3 + 3 O 2 → 2 CH 2 =CH−C≡N + 6 H 2 O. In the SOHIO process, propylene, ammonia, and air (oxidizer) are passed through a fluidized bed reactor containing the catalyst at 400–510 °C and 50–200 kPa g. The ...
Tris(acetonitrile)cyclopentadienylruthenium hexafluorophosphate is an organoruthenium compound with the formula [(C 5 H 5)Ru(NCCH 3) 3]PF 6, abbreviated [CpRu(NCMe) 3]PF 6. It is a yellow-brown solid that is soluble in polar organic solvents. The compound is a salt consisting of the hexafluorophosphate anion and the cation [CpRu(NCMe) 3] +.
Tetrakis(acetonitrile)copper(I) tetrafluoroborate forms colorless crystals in the orthorhombic crystal system in the space group Pna21 with the lattice parameters a = 23.882 Å; b = 8.3285 Å; c = 20.338 Å, and twelve unit cells.
The toxicity LD 50 of propionitrile is listed as 39 mg/kg [8] and as 230 my (both rats, oral). [7] In 1979, the Kalama (Vega) plant in Beaufort, South Carolina experienced an explosion during the production of propionitrile by nickel-catalyzed hydrogenation of acrylonitrile. [9] This site is now one of the two Superfund cleanup sites in South ...
Acetone (2-propanone or dimethyl ketone) is an organic compound with the formula (CH 3) 2 CO. [22] It is the simplest and smallest ketone (>C=O).It is a colorless, highly volatile, and flammable liquid with a characteristic pungent odour, very reminiscent of the smell of pear drops.
4-Nitrophenol is an intermediate in the synthesis of paracetamol.It is reduced to 4-aminophenol, then acetylated with acetic anhydride. [6]4-Nitrophenol is used as the precursor for the preparation of phenetidine and acetophenetidine, indicators, and raw materials for fungicides.
[50] In October 2009 the International Agency for Research on Cancer updated the classification of acetaldehyde stating that acetaldehyde included in and generated endogenously from alcoholic beverages is a Group I human carcinogen. [51] In addition, acetaldehyde is damaging to DNA [52] and causes abnormal muscle development as it binds to ...