Abstract: A container for the storage and shipment of silicon wafers has three parts; namely:(1) a lower box half,(2) an upper box half or a lid which, when joined together, forms an external protective box-like receptacle of the container, and(3) a cassette having ribs defining seats for accommodating the silicon wafers arranged in the interior of the box-like receptacle. The two box halves are closed in a shape-mating, releasable fashion and can be fixedly clamped together with the cassette by restraining action of a lock arrangement. Additional auxiliary ribs are provided at the upper box half to effect a fixed clamping of the cassette and to retain the silicon wafers in the grooves or seats of the cassette. Guide rails are arranged in the box halves to engage the cassette and prevent movement within the box-like receptacle.

Abstract: A process for purifying clorosilanes from B, As, Al, P, Sb and organic impurities, comprising the following steps:(a) adsorbing at room temperature the P, As and Sb impurities by means of AlF.sub.3 and/or anhydrous MgCl.sub.2 having high specific surface and/or slight acid cationic resins, up to a maximum of 1 mg of P, As and Sb impurities per gram of AlF.sub.3 and cationic resins and up to a maximum of 800 mg of the same impurities per gram of anhydrous MgCl.sub.2 ;(b) adsorbing at room temperature the B and Al impurities by means of basic compounds according to Lewis containing nitrogen, up to a maximum of 2 mg of impurities per gram of said basic compounds;(c) adsorbing at room temperature the organic impurities by means of active coal up to a maximum of 15 mg of impurities per gram of active coal.