116
JOURNAL OE CHEMICAL EDUCATION
JANUARY, 1929
Special consideration has been given to the methods of packing and shipping the products produced by the chemical industries. The firms which have devoted much research and expense along these lines will present their products in a special Section for Containers, Packaging, and Shipping Equipment. One of the reasons for the tremendous production on such a large scale of the American industries is because the industries employ not large numbers of men hut large numbers of machines. Hand labor for moving and transporting raw material, intermediate products, and the finished products is almost unknown. This work is done by machines which do all the conveying of gaseous, liquid, and solid material by means of air conveying, pneumatic conveying, or by fuel or electricity consuming machines for lateral or vertical conveying and transportation. In the great Chemical Industries Exposition exhibits of this nature will be displayed in a special Section for Materials Handling Equipment. To reach the forty or more industries classified as the chemical industries there is no better market p l a c e a n d this is the only one in America -than the Twelfth Exposition of Chemical Industries which will he held a t the Grand Central Palace, New York City, from May 6 to 11, 1929. The Students' Course of lectures which has been an institution in the past Expositions will be repeated again. These lectures by authorities in their work are divided into two groups: one for elementary students where an extensive knowledge has not been gained, and the other an advanced course for senior and graduate students. These courses have been well attended and many colleges give credit to the students for work done. This work is tabulated and graded a t the Exposition by Dr. W. T. Read, Professor of Chemistry from Texas Technological College and a member of the Exposition Advisory Committee, who is in charge of the course. Information concerning this Exposition may be obtained direct from the offices of the Exposition, in the Grand Central Palace, New York, Charles F. Roth, Manager.
Soap Dust Latest Explosion Hazard. Soap flakes and soap powders, being extremely explosive, take their place as the latest industrial hazard. Certain kinds of soap dusts when suspended in air are more violently explosihlethan most other industrial dusts, according to tests made at the Experiment Station of the U. S. Bureau of Mines at Pittsburgh. These soap dusts are easily ignited and explode violently, accompanied by much flame and large quantities of heat. This is in spite of the fact that soap is a compound of semi-organic nature and that sodium compounds in general have a cooling effect on the flames of explosives.-Science Service
