HIGH QUALITY STANDARDS . . in Optical Crystal Blanks Calcium Fluoride Barium Fluoride Lithium Fluoride
Sodium Chloride Potassium Chloride Potassium Bromide
• Prompt Delivery · Large Size Availability • Precision Cutting * Scattering Free • Impurity Absorption Free · Strain Free
. . in Optical Maser Crystals U+ 3 . CaF 2 U+ 3 . BaF 2 U+ 3 . SrF 2 Sm+ 2 . CaFo
Nd+ 3 . CaF2 Nd+ 3 . BaF 2 Nd+ 3 . SrF2 Sm+ 2 . SrF„
Also, all other trivalent rare earths in CaF^., BaF 2 and SrF 2 . Indicative of our quality, most of the above were first mased in Optovac grown crystals.
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SUPERB OTA THERMOGRAMS IMPROVE INTERPRETATION Stone equipment for thermal analysis is nov available for immediate year end delivery. Laboratories considering purchase of any thermal analysis system are invited to consult with Dr. Robert L. Stone for recommendation in matching equipment to specific laboratory needs. Such laboratories are invited to submit one sample for test without charge. Stone Thermal Analytical Systems include: Temperature- Gradient Furnace, X-Ray Diffractometer Furnace, T G A and D T A Apparatus with a complete line of sample holders and accessories.
two-pen recorder
EFFLUENT SAS ANALYSIS
EGA
DTA
Simultaneous DTA plus EGA dual thermogram
ROBERT L.
Stone
illustrated is
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Write·. DR. ROBERT L. STONE . ROBERT L. STONE CO., 3316 WESTHILL DRIVE . AUSTIN 4, TEXAS Circle No. 18S on Readers' Service Card 108 A
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ANALYTICAL CHEMISTRY
