Chemical progress on insulating oils

Judging from the published literature of 1942 on insulating oils, chemists have been concerned mainly with the usual problems connected with electrical and oxidation stability of oils in service. As in previous years, further improvements in the stability of oils for insulating applications have been suggested by modifications in refining technique, or by the use of oxidation inhibitors or stabilizers. Fundamental investigations by chemists have also resulted in contributions to the general knowledge of the complicated deterioration reactions.