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CHLOROFORMATES

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CHEMETRON CHEMICALS

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66 C & E N DEC. 13, 1965

B O O K S

Air Pollution Dangers With Every Breath You Take. HOWARD

R. LEWIS (Public Health Consul­tant) , xvii + 322 pages. Crown Publishers, Inc., 419 Park Ave. South, New York, N.Y. 10016. 1965. $5.00. Reviewed by Dr. Frederick G. Sawyer.

Dr. Sawyer is a consultant on air pol­lution control.

Quite frankly, my initial reaction to this book was one of fright combined with resistance to the witchery of the medicine man. Why? Because of the book jacket. In shades of red, white, blue, and brown, it shouts "With Every Breath You Take: The Poisons of Air Pollution—How They Are In­juring Our Health—What We Must Do About Them."

The jacket further states from the text, "With every breath you take, you are being injured. With every breath they take, members of your family are being hurt, the people you know are suffering harm. We are at this very moment creating an atmosphere that is destroying humanity." And at the end, "It is time to end this plague. It is time to look beyond narrow inter­ests, to awake from slumbering too long—and to save ourselves. We had better do so now. There is not much time left."

These statements attract interest in the book and should arouse the public conscience. Despite my initial fears about the scientific value of this book, I was put at ease after the first few pages. Actually, Mr. Lewis has done an excellent job of presenting the rela­tionship between the many types of air pollution and the human activities that make living nowadays in the United States less enticing than in the long-gone days of clean air.

The author painstakingly reviews the news stories and recent history of smoke damage, soot fall, odor attacks, health injury, and other evidences of pollution. The total picture is pre­sented. No particular group is singled out as being the prime villain. We are all guilty of fouling our air.

Occasionally we are reminded of how serious the problem is by a scare statement such as "Had stationary sources (in Los Angeles) been left un­controlled, their outpourings of pollu­

tants—combined with those of motor vehicles—by now would almost cer­tainly have resulted in a smog whose death toll would have reached the hundreds of thousands." Whether or not this is true, at least it should at­tract attention and perhaps stimulate more action in behalf of the public.

By the time the author had de­scribed the sources and effects of air pollution, there wasn't much space left to detail the cures. More could have been said about the politics, the spe­cific recommendations for action, and the successful abatement programs.

The book is a convenient, well-writ­ten, popular summary of air pollution problems, hazards, and effects. For me at least, it also shows the great need for better medical research on the subject. Not of the industrial hy­giene type, but real scientific studies on low concentration effects during long exposure, etc.

Perhaps books such as this will in­spire more chemists, engineers, physi­cians and the public to get rid of this dirty habit.

Useful Chemical Guide How to Find Out in Chemistry. C. R.

BURMAN (Liverpool Public Li­braries), vii + 220 pages. Per-gamon Press, Inc., 4401 21st St., Long Island City, N.Y. 11101. 1965. 17s 6d. Reviewed by Β. Η. Weil.

Mr. Weil is head of the information processing section, technical informa­tion division, Esso Research ίτ En­gineering Co., Linden, N.J.

"Where to find out about chemistry" would be a better title for this little paperback, whose real audience never becomes entirely clear despite the targets stated in its preface (teachers, guidance counselors, personnel man­agers, undergraduates, research work­ers). Something is included for each of these, but it is moot whether the combination is necessary.

Chapter after chapter presents a compact inventory of sources and col­lections (libraries, guides, periodicals, abstracts, societies, official publica­tions), with four chapters devoted to "where to look" in specific chemical fields (analytical, inorganic, organic, and technology).

If you feel that ultra-fine, high purity silicas are too rich for your blood, how does Arc Silica's projected 25c/pound price strike you? Arc Silica is the new, ultra-fine, 99.5% pure silica offered by PPG Chemicals for your evaluation. Right now, pilot plant quantities and sam­ples are available. The carload price from a commercial-size plant will be 25^ per pound. Get your development work underway to take advantage of commercial production scheduled for 1967. Arc Silica looks interesting in these areas:

Rubber Reinforcement for silicone rubber, EPT rubber and other rubbers where dielectric properties and mois­ture resistance are important. ARC SILICA 70 AND 302 are the pre­ferred grades for evaluation.

Flat Clear Finishes can be obtained with Arc Silica. Over half of the sur­face area of Arc Silica is covered with non-polar, ether-type (Si-O-Si) groups to assure maximum compati­bility with lacquer or varnish. The result is short grind time and superior clarity and suspension properties. High loading of Arc Silica in mill base is possible. ARC SILICA 800 is de­signed for direct stir-in.

Colloidal Silica Sol can be made with Arc Silica. Arc Silicas disperse in liquids to extremely discrete colloidal-size particles more readily than any other form of dry silica. Use for anti-slip in floor polish, paper and fiber glass processing; anti-soil; and invest­ment casting binder is suggested with ARC SILICA 70 and 302.

Moisture Sensitive Compounds will appreciate Arc Silica's low water ad­sorption. A weight gain of 2.5% in one month for ARC SILICA 70 on open exposure to 90% Relative Hu­midity, compared to 12.5% for a fume silica and 25% for silica made by liquid process. The only silica that will beat this is ARC SILICA 70-HYDROPHOBIC with less than 1% weight gain.

Plastic Film and Sheeting makers should find some interesting anti­blocking properties with the ARC SILICAS.

Call (412) 281-5100, Extension 2558, or return the coupon for your Arc Silica data sheet and evaluation sample.

chemicals

Pittsburgh Plate Glass Co., Chemical Division One Gateway Center, Pittsburgh, Pa. 15222

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C & Ε Ν 67

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In Canada: TRECAN LIMITED, Cooksville, Ontario

68 C&EN DEC. 13, 1965

American and other sources are in­cluded among the many important ones described, but the book is overly heavy (for sale in this country) in its emphasis on British authorities. Works issued by the publisher are exceptionally well covered in appro­priate places.

Guides to the chemical literature, for use by the chemist himself, are more numerous than they were 25 years ago, when "Crane and Patter­son," "Mellon," and "Soule" had the field to themselves. This particular book is inexpensive, and is surprisingly complete (albeit brief) in its listing of sources (few others devote a sen­tence, much less a page, to the chemi­cal-patent abstract bulletins of the Derwent Information Service), but its source-by-source inventory, inter­spersed with a little history, is re­markably dull reading. The book may be useful to new chemical libraries, as an up-to-date list of chemical in­formation sources; to chemical litera­ture searchers who have only a few years of experience, as a convenient checklist; and to teachers of chemical literature courses, as a reference work. Most teachers, however, will probably select other books as texts for their courses.

NEW BOOKS

Biochemistry. S. P. DATTA, J. H. OTTA-WAY. vii + 379 pages. Williams & Wilkins Co., Baltimore 2, Md. 1965. $6.75.

A successor to the 6th edition of "Aids to Biochemistry," in an expanded version. Text based on lectures at University Col­lege, London, and at Edinburgh Univer­sity. For medical students.

Data Handbook for Sensitivity Calcula­tions in Neutron Activation Analysis. F. GIRARDI, G. Guzzi, J. PAULY. 103 pages. Euratom. Presses Académiques Européennes 98, Chaussée de Charl-eroi, Brussels 6, Belgium. 1965. BF-600.

Looseleaf.

Fluorine Chemistry. Vol. 4. J. H. SIMONS, editor, xviii -f 786 pages. Academic Press, Inc., I l l Fifth Ave., New York, N.Y. 10003. 1965. $28.

Instrumental Methods of Analysis. 4th éd. H. H. WILLARD, L. L. MERRITT, JR., JOHN A. DEAN, xviii -|- 784 pages. D. Van Nostrand Co., Inc., 120 Alexan­der St., Princeton, NJ. 1965. $10.75.

Low Reynolds Number Hydrodynamics. JOHN HAPPEL, HOWARD BRENNER, xiii + 553 pages. Prentice-Hall, Inc., Englewood Cliffs, N.J. 07632. 1965. $15.

Said to present for the first time a com­prehensive quantitative treatment of sys­tems involving flow of fluids in particulate media.