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OR
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ACID WASHED FilterÂAid
Standardized ALUMINA "Woelm" For C h r o m a t o g r a p h y
SUPPLY CENTER
OXYGEN IN METALS by B R O M I N A T I O N
PROCEDURE
Acid, Non-alkaline, Basic Highest activity, GRADE 1 Packings: 1 0 0 g, 5 0 0 g, 1 0 0 0 g, 5 0 0 0 g W e f'nWre your inquiries
A L U P H A R M CHEMICALS 5 4 C St., Elmont, L. Ι., Ν . Υ.
Celrte 521 Celite* 521 is specially processed to remove acid soluble components. Negligible iron content eliminates darkening when filtering tannin compounds. Thus, Celite 52 1 is par ticularly well adapted to filtration of whiskey. Also highly effective in dilute sul furic acid filtration for peroxide manufac ture, and in production of tannic acid. For samples and complete details about Celite 521, write Johns-Manville, Box 60, New York 16, N.Y. In Canada, 565 | B Lakeshore Rd., E., Port Credit, Ont. J j i T I
New Direct Reading Balance "The Eterna-Mafic" 2 0 0 Gram Capacity 1 / 2 0 M g . Sensitivity Only $ 4 6 5 . 0 0 ! Write us for details and descriptive bulletin
*R*>g\ U. S. P a t . Off.
The " O x y a t o r " illustrated above is now available. Accurate Deter minations at one-quarter previous cost. Literature available upon request.
LED0UX & COMPANY LEDOUX 359 3 5 9 Alfred Avenue Avenue Tea neck, neck, N New e w Jersey
SCIENCE HOUSE, INC. Box 7913, Pittsburgh 16, Pa.
CLARK MICROANALYTICAL LABORATORY
YOUH ANNOUNCEMENT of Equipment or Chemicals for Sale and/or Wanted, and Professional Services can carry YOUR MESSAGE to the readers of the leading work-magazine for instrumentation, control and analysis. ANALYTICAL CHEMISTRY
Routine Analyses in one week CH, N, S, Halogen, Fluorine, Oxygen, Alkoxyl, Alkimide, Acetyl/ Terminal Methyl, etc., by specialists in organic microchemical analysis. Howard S. Clark, Director P. O . Box 1 7 Urbane, III.
Advertising Office 430 Park Ave. New York 42, N. V.
L a M O T T E T I T A N O U S SALTS
LOOK TO WEBER Model 3001 Stirrer, air driven, explosion proof, 1/6 HP, zero to 6000 RPM, complete with rubber tubing connector, silencer, collet chuck, support rod/ 1 2 " shaft and two inch propeller of stainless steei. Price $45.00
GRENCO, INC. Box 417
Titanous Chloride and Titanous Sulfate are the most powerful reduc ing agents that are stable in solution form and, therefore, find wide use in laboratory reductions and especially in quantitative analysis. These solutions are prepared according to the specifica tions of Dr. W. M. Thornton, Jr.
Palos
| W«CUMN|IM Γ L i ^ _ ^ •
Heights, lllinois
QUANTITATIVE MINERAL! ANALYSES «NCLUDiNG 1 SODIUM AND FLUORINE '
Proximate analyses
a n d a m i n o acid assays
·
·
Vitamin Screening
of compounds for insecticidal, f u n g i
Titanous Chloride, 20% Standardized solution. Titanous Sulfate, 20% Standardized solution.
100cc.|250cc! 500cc.
c i d a l , a n d bactericidal
$3.30 4.40
PROJECT RESEARCH AND CONSULTATION
$6.60 $11.55 8.80 15.40
LaMOTTE CHEMICALPRODUCTS CO. Dept. AC
Towson, Baltimore 4, Md.
properties
" " " ' < " WISCONSIN ALUMNI i « E E i . RESEARCH FOUNDATION I
P.O. BOX 2059-C ·
MADISON I , WIS.
FOR LABORATORY EQUIPMENT Architects and equipment buyers are invited to consult with Weber regarding the most modern, func tional laboratory equipment. ASK ABOUT WEBFLEX-Siam, acid, heat resistant surfaces and sinks.
WEBER SHOWCASE & FIXTURE CO., INC. 5700 Avalon Blvd., Los Angeles 11, Calif
60A
ANALYTICAL
CHEMISTRY
