Our Ad is not Perfect.... but our
CELLS are
and we have Standard . . . Flow-through . . . Constant-temperature Anaerobic . . Special design Cells. SUPRASIL — I N F R A S I L — S P E C I A L OPTICAL GLASS (far uv-ir) Also available
(near uv-visible)
ULTRAVIOLET LIGHT SOURCES ...to m e e t e x a c t i n g s o l v e n t
Deuterium Lamps ( 3 0 - 6 0 watts — air cooled) (1 5 0 watts — water cooled)
M e r c u r y V a p o r Lamps Hollow C a t h o d e Lamps Power Supplies Write for literature to
H E L L M A CELLS, I N C .
needs
Acetone · Acetonitrile . Benzene · Butanol-1 · Butanol-2 · Carbon Tetrachloride .Chloroform · Cyclohexane . Dimethyl Formamide · Di methyl Sulfoxide . Dioxane. Ethyl Acetate. Ethyl Ether ."Heptane",95-9° • Hexane, 68-69° · Methanol . 2-Methoxyethanol · Methylene Chloride • W-Methylpyrrolidone. Pentane . Petroleum Ether, 30-60°· Propanol-2 • Tetrahydrofuran · Toluene · Trimethylpentane . Others... Ask for Bulletin BJ-13J
U.S. Agencies use r.S.S.
BURDICK & JACKSON LABORATORIES, INC.
Box 544, Borough Hall Station, Jamaica, N. Y- 11424 Tel.: (212)544-9534
616 PA 2-2310
MUSKEGON. MICHIGAN 49442 Circle No. 202 on Readers' Service Card
Circle No. 54 on Readers' Service Card
FLAMELESS BLOW TORCH
FOR FAST HEAT
uP to 1,000 F. For applications requiring quick concen t r a t e d heat blast u p t o 1000° F., w i t h o u t flame. S o f t e n , f o r m , mold a n d patch plas tics, etc. T e m p e r a t u r e varied by air i n t a k e a d j u s t m e n t . 110-230 V. A C m o t o r 3 wire p l u g . A l l 110 V . models equipped w i t h adapter for 2-prong receptacle. 8 f t . heavy d u t y cord. I n t e r m i t t e n t d u t y . O t h e r models available w i t h lower t e m p , ranges. Most of t h e big names i n i n d u s t r y use M A S T E R H E A T G U N S i n laboratories or i n produc tion. Model H G 501-500° F. 115V—$49.90 (Others $44.30 to $67.85)
"Microchemical and Instrumental Analysis" 76-page technical manual ADM-70 explains in detail how the precision of Millipore filtra tion is used in microchemical analysis by in frared and ultraviolet spectroscopy, visible light microscopy, ring oven analysis, flame photometry, x-ray fluorescence, activation analysis, spot tests, autoradiography and many other methods. Available free of charge.
Millipore
Circle No. 14 on Readers' Service Card ·
ANALYTICAL CHEMISTRY
Write today to Dept. 16 Send for i n f o r m a t i o n on hair dryers, hand and foot massagers, vibrators, grass t r i m m e r s , h a i r c l i p p e r s , food blenders, and air purifiers. See our specs in V S M F
CORPORATION
115 Ashby Rd., Bedford, Massachusetts 01730
166 A
AIR HEATER BLOWER For q u i c k electrically heated air u p t o 750° F. For accelerating drying processes or for localized h e a t i n g . B . T . U . 3400. Air velocity 2000 F P M 110-230 V . A C only. 3 wire plug. A l l 110 V . models equipped w i t h adapter for 2 prong receptacle. 8 f t . heavy d u t y c o r d . C o n t i n u o u s d u t y , 2 " d l a . χ 3 " long discharge nozzle. Model AH-501-500° F. 115V-$59.95 (Others f r o m $56.65 t o $90.25)
Master
APPLIANCE CORP., RACINE, WISCONSIN Circle No. 71 on Readers' Service Card
