Laboratory Drainage

Abstract

TROUBLE with laboratory drainage is so frequent that information on any new departure may be of general interest. It is difficult to obtain a materiai for waste systems which wili withstand dilute acids, alkalis, organie liquids, and mercury, all of which find their way down chemical drains. So far, glazed ware pipes remain the best things for general use, but can only be obtained in very short lengths, involving an undesirable number of joints. I have tried to interest one or two firms in the production of moulded drains and channels of graded silica (sand) and asbestos bound together by high silica sodium silicate, but the demand does not appear to inspire much enthusiasm for research in this direction. Thanks to a professor in one of our universities, some alloys of nickel are under test in his laboratory drainage system, with a view to the possible use of this material.