Abstract: There is provided a process for the continuous production of pentanediol-1,2 comprising epoxidizing pentene in a completely homogeneous phase with perpropionic acid in benzene to 1-pentene oxide and directly saponifying the pentene oxide-1 without isolation. High yields and a high degree of purity of pentanediol-1,2 are obtained.

Abstract: There is provided an apparatus for guiding and seating a stirrer shaft for laboratory or industrial glass apparatus which consists of bearings and abutments and makes possible a change in the angle of slope of the stirrer shaft axis in the apparatus, wherein the bearing consists of a smooth disc with a concentrically arranged, spherical recess at whose deepest position there is arranged a conical bore breaking through the disc, and a body with a spherical surface and a central, axial bore which is rotatably fitted in the spherical recess of the smooth disc, whereby the stirrer shaft can be so affixed in the bore of the body, that it projects through the bore in the disc and has a stop in the abutment.