Ethere absolute

Pinacoi (anhydrous) [76-09-5] M 118.1, m 41.1 , b 172 . The hydrate is rendered anhydrous by azeotropic distn of water with benzene. Recrystd from benzene or toluene/pet ether, absolute EtOH or dry diethyl ether. Recrystn from water gives the hexahydrate. 

Miscible with benzene, petroleum ether, absolute alcohol and ether... 

The free dimeric 9-molybdophosphoric(V) and 9-tungstophosphoric(V) acids are exceptionally soluble in water (up to 85% by weight of solution), ether, absolute alcohol, and cold nitric acid. However, they are insoluble in nonpolar solvents such as chloroform, carbon disulfide, or hydrocarbons. The 2 18 arsenic acid is decomposed by hydrochloric and sulfuric acids. 

Water-clear, highly refractive, mobile liquid with an agreeable, sweet, ether odor poisonous stable to air and water. B.p. 76°C, df 1.291. Insoluble in water miscible in all proportions with ether, absolute alcohol and other organic solvents. 

Insoluble in water miscible in all proportions with ether, absolute alcohol and other organic solvents. 

Since the (C xaHxo)(C sHsiCrl often separates as an oil, seeding the solution may be helpful. The precipitation can be completed very slow addition of a 3- to 5-fold quantity of ether. The precipitate is filtered off under anhydrous conditions, washedtwice with some 1 1 absolute ether/absolute ethanol, twice with absolute ether, and then dried to a constant weight in a drying pistol at 2... 

Sehested, J., K. Sehested, J. Platz, H. Egsgaard, and O.J. Nielsen (1997), Oxidation of dimethyl ether Absolute rate constants for the self reaction of CH3OCH2 radicals, the reaction of CH3OCH2 radicals with O2, and the thermal decompositon of CH3OCH2 radicals, Int. J. Chem. Kinet., 29, 621-636. 

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