NEWS PROGRAM
Monday
Morning
SYMPOSIUM O N NEW METHODS FOR ANALYTICAL CHARACTERIZATION OF CELLULOSE
J. W . STILLMAN, Chairman WARREN W . BRANDT, Secretary
Joint with Division of Cellulose Chemistry
Monday Morning
KYLE WARD, JR., Presiding
SYMPOSIUM O N AIR POLLUTION Joint with Division of Industrial and Engineering Chemistry and in participation with ACS Committee on Air Pollution
Flame Photometric Determination of Calcium in Cellulose. LYLE H. P H I F E R . Manganese in the Viscose Process. ANDER, AND R. L. MITCHELL.
Introductory Remarks. Jos. W. E . HABRISSON. Analytical Methods Used in Air Pollution Study.
Period 1952-
KINGSLEY K A Y .
Air Pollution from Rocket Exhaust Products.
II. H. BOVEB,
A. S. GORAI, AND J. B. P A T E .
Fate of Atmospheric Fluorides and Attendant Effects upon Soil Fertility. W A L T E R H. M A C I X T I B E . Gaseous Contaminants in the Atmosphere. JACOB CHOLAK, L. J. SCHAFER, D . W. YEAGER, AND W. J. YOUNKER.
Emission of Fluorides from Industrial Processes.
A Review.
KONRAD T. SEMRAU.
Performance of Equipment for the Control of Fluoride Emissions. Characteristics of the Organic Particulate Matter in the Atmosphere of Certain American Cities. ELBERT C. TABOR, THOMAS R. HATISER, AND R I C E H. BTJRTTSCHELL.
D . K. SMITH, W. J. A L E X -
Discussion. Beta and Gamma Cellulose. Critical Examination of Some Factors Influencing Their Determination. OTTO GOLDSCHMID AND J. E . J E F F E R Y .
Discussion. Spectrophotometric
Method
for Determination
of Sugars.
T. E. T I M E L L , C. P . J. GLAUDEMANS, AND A. L. C U R R I E .
Discussion. Monday Afternoon
SYMPOSIUM O N AIR POLLUTION (continued) A. J. HAAGEN-SMIT, Presiding
K. E. L U N D E .
Parr
ARTHUR
F. JOHNSON AND K. A. JUBBERGS.
Discussion.
KINGSLEY KAY, Presiding
1956.
Introductory Remarks. 0 . A. BATTISTA. Flame Photometric Determination of Sodium in Pulp.
Introductory Remarks. A. J. HAAGEN-SMIT. Air-Borne Simulants of Fall-out from Nuclear
Detonation.
PRESSURE REACTION APPARATUS
Series 4000
Series 4S00
Series 3910
High Pressure -- Rocker Type
Medium Pressure -- Stirrer Type
Low Pressure--Shaker Type
For hydrogénation and other reactions at pressures to 6000 psig. at temperatures to 350° C . Furnished with either 500 ml. or 1000 ml. stainless steel bombs. Apparatus includes oscillating mechanism, electric heater, and connections for adding or removing gas under pressure while rocking.
For catalytic hydrogénation, alleviation, polymerization, and many other reactions requiring an autoclave with stirrer for pressures to 1000 psig. Furnished with either 1000 ml. or 2000 ml. stainless steel bombs, both interchangeable in the same electric heater for temperatures to 350° C .
For catalytic hydrogénation and other reactions at pressures to 5 atm. Sturdy c l a m p i n g device holds 500 ml. reaction bottle. Connections to 4-liter gas tank permit quantitative control of hydrogen consumed. Bottle heater available for temperatures to 100° Centigrade.
Ask your Parr Dealer for details and prices, or write direct
PARR EST. 1899
INSTRUMENT CO., MOLINE, ILLINOIS MAKERS OF CALORIMETERS AND PRESSURE REACTION EQUIPMENT
Far further information, circle number 20 A on Readers' Service Card, page 71 A
20 A
ANALYTICAL
CHEMISTRY
