NEW BOOKS uation of Part 1 will discuss physical characteristics, chemical properties, and general methods of wax analysis (Part 2) and specific methods of analysis in cluding chemical and physical methods and performance tests (Part 3).
CLASSIFY LABORATORY QUANTITIES
Critical reviews of the books listed below will appear in future issues of
for product or new materia/
ANALYTICAL CHEMISTRY.
research
Grinding Sand Metal Oxides Penicillin Polymers Powdered Metals Milk Solids Standard Dust Samples
Stig Veibel. xvi + 1$6 pages. G. E. C. CAD, Forslag, Vimmelskaftet 32, Kobenhavn K, Copenha gen, Denmark. 1061. D.Kr./tS.-. Gas Chromatography. Ernst Bayer. Elsevier Monographs, Chemistry Sec tion, xii + 2J/J pages. D. Van Nostrand Co., Inc., 120 Alexander St., Princeton, N. J. 1961. $5.00.
(BAHCO)
MICRO-PARTICLE CLASSIFIER
Paper Electrophoresis. L. P. Ribeiro, E. Mitidieri, and O. R. Affonso. xii + 463 pages. D. Van Nostrand Co., Inc., 120 Alexander St., Princeton, N. J. 1961. $l/f.00. Model No. 6000. totally enclosed 220 volt, 3 phase motor, operates at 3500 rpm.
Treatise on Analytical Chemistry, Part 2 : Analytical Chemistry o f t h e E l e m e n t s . V o l . I. / . M. KoP
thoff, Philip J. Elving. xxi + 471 pages. Interscience Publishers. Inc., 250 Fifth Ave., New York 1, Ν. Υ. 1961. $16. Subscription price $14.
Widely used for particle size control in many industrial processes . . . for scienti fic study of fine materials . . . for pre testing dust collector needs . . . for determining the separating efficiency of air cleaners. An 8-fraction analysis can be completed at the rate of 15 minutes per fraction by unskilled operators. Frac tions are precisely defined and may be retained for accurate study.
Government
EQUIPMENT DETROIT 4, MICHIGAN
_ .
Address State Circle No. 153 on Readers' Service Card 74 A
·
ANALYTICAL
CHEMISTRY
TOTAL DESIGN IS
FUNCTIONAL Carry it anywhere — put two side-by-side in a rack. Its shape is ideal for both. And its per formance is multi-purpose too: wide choice of ranges, acces sories, options and plug-ins. Chances are it has the capabil ity to record for you in a variety of assignments.' The Varian G-11A is 1 0 * high, 8H" wide,7%"deep;15lbs.; I X accuracy; ranges from 10 mv to 100 v d . c . f u l l scale; wide choice of charts and chart speeds f o r m i l l i v o l t , m i l l i a m p a n d direct temperature recording from thermocouples. Write forfull specifi cations to Instrument Division.
Standard X-Ray Diffraction Powder Patterns. He'card E. Swanson and others. NBS Circular 539, Volume 10, issued Sept. 23, 1960. 61 pages. 40 cents.
Send me 8-page Micro-Particle Classifier bulletin.
City—
Publications
The following can be obtained from the Superintendent of Documents, U. S. Government, Printing Office, Washing ton 25, D. C.
HARRY W . DIETERT C O .
Company
because . . .
Identification of Organic Compounds. 5 t h e d i t i o n , (second English e d . )
with the
Name
The logical "first choice"
Durward C. Layde. 350 pages. Ally η and Bacon, Inc., College Divi sion, 150 Tremont St., Boston 11, Mass. 1961. $6.50.
DIETERT-DETROIT
9330 ROSELAWN
RECORDERS
Introduction to Qualitative Analysis.
below 60 m i c r o n s . . . in materials such as:
CONTROL
Potentiometer
Infrared Absorption of Inorganic Substances. Katheryn E. Lawson. vii + 200 pages. Reinhold Publish ing Corp. JfSO Park Ave.. New York 22, Ν. Υ. 1961. $6.75.
DETERMINE PARTICLE SIZE DISTRIBUTION Beryllium Powder Catalyst Ceramic Powders Chemicals Diatomaceous Earth Drugs Dry Powders Fly Ash
VARIAN
_
The X-Ray Powder Data File, a compilation of diffraction patterns from all sources, is used for the identi fication of unknown crystalline sub stances by matching spacing and in tensity measurements in the patterns. The project is sponsored by the Joint Committee on Chemical Analysis by
VA VARIAN associates PALO ALTO
4, CALIFORNIA
Circle No. 138 on Readers' Service Card
