WACO REFRIGERATED BATH Controlled Cooling and Heating Minus 10° C to Plus 65° C
• WIDE RANGE Visibility bath with BOTH mechanical refrigeration and heating. Provides constant tem perature from minus 10° C to plus 65° C using 10" of liquid in a 16" uninsulated Pyrex jar. Using less liquid minus 20° C is obtainable. • SENSITIVITY Mercury thermoregulator and a WACO Thyratrontube Relay controls operation of the com pressor and heating until within plus or minus .01° C.
Through a subsidiary—HEF, Inc., jointly owned with Foote Mineral C o . , — Hooker is increasingly interested in propellents for rockets and missiles. The laboratory continuous crystallizer shown is a useful t o o l for exploratory studies
in this field Infrared and ultraviolet spectroscopy together with vapor phase chromatog raphy is invaluable in deciphering results from both exploratory and applied research along many lines of organic chemistry. Inorganic derivatives are tested by the flame photometer, or by chemical methods, in a program d i rected primarily t o diversification of inorganic products now produced
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ALREADY USED FOR — Viscosity
vapor pressure and other physical data determination, organic synthe ses, ASTM petroleum tests, etc. Also as COOLANT CIRCULATING SYS TEM for spectrophotometers, refractometers, distillation condensers. NO. Ν882 WACO L0-TEMP REFRIGERATED BATH with Pyrex jar 12" diameter. For 115 volt 50,60 cycle A C . . $390
# Other sizes and many acces sories available to fit your needs. Please write for WACO BATH BULLETIN N-ll for complete infor mation.
LABORATORY SUPPLIES AND EQUIPMENT
WILKINS-ANDERSON CO. 4525 W. DIVISION ST.
CHICAGO 51,sill.
Circle No. 13 on Readers' Service Card
