Abstract

The belief prevails that U. S. P. anesthetic ether deteriorates very quickly and is unfit for anesthesia twenty-four hours after the container is opened. In 1934 a study was reported by the Golds 1 showing that this view is based on a misconception, that certain facts concerning deterioration of ether have been misapplied in practice. It is well known that when exposed to heat, sunlight, air and certain catalytic agents ether oxidizes with the formation of impurities. However, they showed that ether fails to develop any impurities detectable by very delicate tests when the sealed metal containers in which anesthetic ether is supplied by E. R. Squibb & Sons, Mallinckrodt Chemical Works and Merck & Co., Inc., 2 are opened repeatedly, stoppered with cork and kept at ordinary room temperature for weeks. The same was found to be true of U. S. P. ether (Mallinckrodt) supplied in large drums of

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