A study of the velocity factors involved in the preparation of octane by the Wurtz reaction has been made and a new technic developed. Using 50 grams of butyl bromide, 10.5 grams of bird shot sodium or a 25% excess, and 40 cc. of ether, at the reflux temperature, yields of 73% have been obtained in five hours when the mixture is agitated, and without agitation, but 44%. By dropping the butyl bromide on the sodium contained in a pyrex round bottomed flask, high yields were obtained with times of reaction less than an hour. The product obtained is high grade. This reaction can be carried out in the absence of a solvent thus eliminating one step in the process, namely the separation from the solvent. As the sodium is used up fresh charges can be introduced and the process kept up.
Proceedings of the Iowa Academy of Science
©1925 Iowa Academy of Science, Inc.
Lewis, H. F. and Yohe, G. Roert
"The Preparation of Pure Octane,"
Proceedings of the Iowa Academy of Science, 32(1), 327-328.
Available at: https://scholarworks.uni.edu/pias/vol32/iss1/53