COSAN
LETTERS
SO2 emission problem D E A R SIR:
a high order anti-microbial PRESERVATIVE COSAN S is a non-metallic, organic biocide with the potency of the phenyl mercuries. COSAN S is an outstanding preservative. Recommended for water systems including adhesives, dispersed colors, protein colloids, resin emulsions and other aqueous compositions. Levels down to 0 . 0 1 % may offer complete preservation.
FDA ACCEPTED (on a nonresidual basis)*
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Let us lift the smoke curtain which appears to have been laid down in "Three Routes to Sulfur Removal" (C&EN, May 23, page 2 4 ) . It would appear that a $1.17-perton charge has been levied over the $2.45-per-ton run-of-mine coal to obtain the $3.62-per-ton total cost under Plan A shown in the tabulation. This is virtually a 50% surcharge on the run-of-mine basis. Any qualified member of the American Chemical Society can name one or more chemical reagents that can scrub out the sulfur dioxide emitted when a high sulfur coal or residual fuel oil is burned. Perhaps there is a member who can also eliminate the 400- to 800-feet-high stacks, (ibid., page 56) at the same time. I hereby propose that the President of the ACS take the initiative to establish a prize to award to the person who most satisfactorily overcomes the sulfur dioxide emission problem. In view of the growing urgency for a satisfactory solution to that problem, the president of the American Institute of Chemical Engineers, of the American Mining Congress, and even of the United States Congress might appropriately be called upon to establish an even more meaningful prize.
CHEMICAL AND ENGINEERING NEWS 1155 Sixteenth St., N.W. Washington, D.C. 20036 Editor: GORDON H. BIXLER Managing Editor: Kenneth M. Reese Assistant Managing Editors: Chester Placek, Arthur Poulos
Tote Bins
422 South Western Ave., Los Angeles, Calif. 90005 Assistant Editor: Richard T. Mitch
D E A R SIR:
The May 23 issue of your very fine publication carried an item on page 23 entitled "Dry shipping cuts caustic price." In this item, the writer states: "The conventional method of shipping dry caustic is in 400-pound drums, although some users get larger lots shipped in 'tote bins/ These tote bins are built by the user. . . . " I would like to point out that Tote Bin is the registered trademark of Tote Systems division of Hoover Ball & Bearing Co., Beatrice, Neb. Tote Systems manufactures all of the Tote Bins used by its many customers in the U.S., and its licensees produce Tote Bins for other parts of the world. The Tote Bin is a weathertight, hermetically sealed container, commonly made of aluminum alloy, but also available in other metals. They are offered in standard sizes, but can be adapted to handle almost any bulk dry commodity. Tote Tanks are available to handle liquid materials. MORRIS MALINE
New York, N.Y.
514 Main Bldg., 1212 Main St., Houston, Tex. 77002 Bureau Head: Bruce F. Greek Washington News Bureau 1155—16th St., N.W., Washington, D.C. Bureau Head: Louis A. Agnello Congressional Specialist: George B. Krantz Assistant Editor: Wilbert C. Lepkowski Foreign News Bureaus Frankfurt/Main, West Germany Grosse Bockenheimerstrasse 32 Assistant Editor: H. Clifford Neely London, W.C.2, England, 27 John Adam S t Assistant Editor: Michael K. McAbee Tokyo, Japan, Apt. 306, 47 Dai-machi, Akasaka, Minato-ku Bureau Head: Patrick P. McCurdy Advisory Board: Raymond F. Baddour, Herman S. Bloch, Walter M. Carlson, Herbert D. Doan, William D. Emmons, Alfred B. Garrett, Walter R. Guyer, Charles J. Jelinek, Marshall Nirenberg, Royston M. Roberts, Frederick D. Rossini, Wayne D. Staley, Harold E. Thayer, Ervin R. Van Artsdalen, Robert R. White American Chemical Society Publications Director of Publications: Richard L. Kenyon Assistant Director of Publications: Richard H. Belknap Director of Business Operations: Joseph H. Kuney Executive Assistant to the Director of Publications: Rodney N. Hader Assistant to the Director of Publications: William Q. Hull
