V O L U M E 2 1, NO. 4, APRIL 1 9 4 9
35A
Chemical Ware Body Emerging from the
TO SPEED YOUR ANALYSES
Horizontal Pug Mill
• C a r e a n d p r e c a u t i o n in t h e p r e p a r a t i o n of clay are v i t a l in maintaining the high quality of C o o r s P o r c e l a i n W a r e .
COORS PORCELAIN COMPANY \
COLDEN, COLORADO
For years, Chemists in Iron and Steel, Fertilizer and other In dustrial Laboratories have been using Filter Pulp, made by macerating Ashless Filter Papers or Clippings in water to speed up difficult nitrations and to facilitate the washing of gelatinous or gummy precipitates.
J
The Golay INFRA-RED DETECTOR Is a superior detector for use in infra-red spec troscopy. It has been acclaimed as presenting the best all around characteristics of sensitiv ity, speed, reliability and spectral uniform ity of response. These detectors can be manufactured to fit most of the infra-red spectrometers in use today, and we solicit inquiries regarding such applications. T h e Golay Infra-Red Detector is manufac tured by T h e Eppley Laboratory, Inc., under the personal supervision of Dr. Marcel J. E. Golay.
Write for Bulletin
W H A T M A N Ashless Tablets are composed of highly purified pulp washed in Hydrochloric and Hydrofluoric Acids until practi cally Ashless. Each tablet weighs about 2.5 grams, with an ash of approximately .0005 gram.
W H A T M A N Ashless Tablets make this technique available to all laboratories with a minimum of trouble and expense. These tablets are soft and easily macer ated to form a smooth suspension free from lumps. A stock suspen sion can be prepared, using several tablets or a portion of a tablet added to each analysis. W H A T M A N Ashless Tablets are available in boxes of 100 tablets each from all dealers in Laboratory Apparatus. Samples cheerfully
supplied.
H. REEVE ANGEL & CO., INC. 52 D u a n e Street
New York 7, Ν. Υ.
No. 10c.
EPLAB THE EPPLEY LABORATORY, INC. Scientific Instruments NEWPORT · RHODE ISLAND · U. S. A.
WHATMAN high grade FILTER PAPERS
