QUALITY
VERSATILE, HANDY HOT PLATE
is
for both exacting requirements and general healing in Laboratories and Plants.
Obvious
CAST ALUMINUM 6 » ,
in
RLPPureLatexLaboratory Tubing 24 SIZES Wa :
ϋ 1/b" 1/8" 3/14" :s/!.v 3/16" \/X 1/4" 1/4" 1/i" ΪΊ6' J/!i" VIS" 5/16" 3/3" 3/8" 3/5" 3/H· 1/2' 1/?" 1//"
χ « .·. κ χ χ χ χ χ χ χ > χ χ χ χ χ χ χ χ
1/32" i/lV 1/lii" V'iî" ;/S" 1/16" 3/32" 1/3" 3/16" 1/16" 3/32" 1/8" 3/16" 1/16 3/32" 1/8" 3/1Λ" 3/32" 1/8" J/16"
1-2"
χ
:/••!"
5/8 3/4" 1"
χ 1/8" χ 1/8" χ 1/8"
r
I f l p pL
HEATS TO 700 f. IN Π MINUTES
P u r e liquid latex, no min erals or coagulants u s e d — a b s o l u t e l y non-toxic — strong—seamless, smooth inside a n d o u t — l o n g life.
gravity
Strength—4500 lbs. square
.98
per
uses. Wide temperature range, exceptionally close control—less than S°F. variation. Completely variable control over full tem perature range. Compact, convenient—plugs into 110 V., 50/60 Cy. Only $19.70. Write for literature and nearest dealer's name.
in.
Elasticity—Elongation
850% Resiliency—Durometer hardness
35 — 5
Ask your laboratory supplier for samples
Rubber Latex Products, Inc. Cuyahoga
AIR CHANNEL BETWEEN TOP PLATE — AND STEEL CASE PREVENTS EXCESSIVE CASE TEMPERATURES
sdjskdjskdsjdksjdd dskdsdlldfldlldlfldlf sdksdlsdsdlslddllsl You'llssjdfsskllsaldsalds find this the ideal unit for a wide sakjdksdksdsldlss varietysjdjdjdjsndjiwhwhrwn of critical1900 andHOT routine PLATE laboratory
PHYSICAL PROPERTIES Purity —Specific
—
Falls, O h i o
TEMCO
HOT PLATES & FURNACES
® THERMO ELECTRIC MFG. CO.
Circle number 52 A-1 on Readers' Service Card, nage 41 A
478 HUFF ST., DUBUQUE, IOWA
Circle number 52 A-2 on Readers' Service Card, page 41 A
P u m p liquids, gases, solids in solution Just place connecting tubes in
large Sigmamotor
Pump! • Wavelike action of steel ,, fingers forces liquid through the tubing. M a t e r i a l in tubing never touches pump. Stops contamination a n d corrosion. Excellent for handling of corrosive solution Smaller unit w i t h capacities to gallons per hour
$19500 3 0 $5500
SIGMAMOTOR Inc. 5 0 0 Vernon Street
•
Middleport, Ν Υ
Circle number 52 A-3 on Readers' Service Card, page 41 A
52 A
COLORMASTER DIFFERENTIAL COLORIMETER *
COLOR MEASUREMENTS made in less than 30 seconds! The Colormaster Differential Colorimeter* is the latest development in color measuring equipment. A complete set of color measurements can be made in less than 30 seconds b y non-technical personnel. Equipment is direct reading on a low backlash dial, and is mechanically rugged, and stable. Dial linearity is within approx. 0.2% from 100% to 10% reflection or transmission and can be extended below 10% with approx. 0.02% linearity. • Three color filters enable % transmission or reflection to be read directly on front Panel Dial to within an estimated 0.01%. • Simple calculation converts dial readings to I.C.I. X, Y, & Ζ functions. • Operates from 115 Volt 60 cycle line. * Similar to instrument described at the March, 1952 meet ing of the Optical Society of America by L. G. Glasser and D. J. Troy of E. I. du Pont de Nemours & Co. Write
for
Complete
Information
MANUFACTURERS ENGINEERING & EQUIPMENT CORP. 10 MILL ROAD, HATBORO, PA. Circle number 52 A-4 on Readers' Service Card, page 41 A
ANALYTICAL
CHEMISTRY
