Di-iso-propyl ether

Chamberlain and Walsh [89, 90] have shown that this ether oxidizes by two mechanisms. In the high-temperature regime between 360 and 460 °C the pressure—time curves are sigmoidal, whereas at 220 °C in the low temperature zone they are not. At 360 °C the rate of reaction varied according to the equation 

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Di-iso-propyl ether. The commercial product usually contains appreciable quantities of peroxides these should be removed by treatment with an acidified solution of a ferrous salt or with a solution of sodium sulphite (see under Diethyl ether). The ether is then dried with anhydrous calcium chloride axid distilled. Pure di-iso-propyl ether has b.p. 68-6°/760 mm. 

In particular solvents such as diethyl- and di-iso-propyl-ether a rapid reaction between Co4(CO)i2 and the anion [Co(CO)4]- is observed ... 

The inflammable solvent most frequently used for reaction media, extraction or recrystallisation are diethyl ether, petroleum ether (b.p. 40-60° and higher ranges), carbon disulphide, acetone, methyl and ethyl alcohols, di-iso-propyl ether, benzene, and toluene. Special precautions must be taken in handling these (and other equivalent) solvents if the danger of fire is to be more or less completely eliminated. It is advisable to have, if possible, a special bench in the laboratory devoted entirely to the recovery or distillation of these solvents no flames are permitted on this bench. 

Fig. 10. The pressure—temperature explosion diagrams for equimolar ether—oxygen mixtures [67]. (A) Dimethyl ether. (B) Methyl n-propyl ether. (C) Ethyl methyl ether. (D) Di-n-propyl ether. (E) Diethyl ether. (F) Di-iso-propyl ether.

An ether diethyl ether is usually inconveniently volatile, and popular alternatives are di-iso-propyl ether or methyl tert-butyl ether. 

Sample preparation 500 p,L Serum -I- 250 pL di-iso-propyl ether n-butyl alcohol 7 3 containing 800 n mL minaprine, centrifuge 2 min, shake, centrifuge 5 min, inject 50 xL aliquot of top organic layer. 

The fire hazard is reduced also by employing di-iso-propyl ether (b.p. 67-5°), but this solvent is much more expensive than diethyl ether. 

Owing to the high environmental burden resulting from the operation of the liquid-liquid extractor and its downstream distillation column, substitution of the organic solvent offers an ideal opportunity for modifying the process in search of step-change improvements. The task is, therefore, to identify potential candidates that can he used as substitutes to the existing solvent, di-iso propyl ether (DBPE). 

Vijayaraghavan, S. V. Deshpande, P. K. Kuloor, N. R. Isobaric vapour-liquid equilibrium studies od di (iso) propyl ether - carbon tetrachloride system. J. Indian Inst. Sci. 1965, 47, 139-141. 

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