PROGRAM
Safeguarding the Purity of the Purest Water —
11:40
(40)
BARNSTEAD Tin-lined PIPING FITTING . VALVES FAUCETS for Distilled Water Distribution Systems With over 75 years of experience in manufacturing water stills and solving pure water problems, Barnstead now offers a complete line of tin-lined pipe, valves, and faucets designed specifically for use with distilled or demineralized water distribution systems. Barnstead's tin-lined brass piping gives you all the desirable chemical characteristics of pure tin plus the strength and durability of metal pipe. The pure tin is permanently bonded to the pipe so that installations can be enclosed in walls, or floors' . . . concealed like other piping . . . with the assurance that it will outlast all other piping in the building, delivering pure, distilled water without traces of metal and other impurities, for laboratory and scientific use.
Spectrophotometric Determination of Secondary Amines.
STANLEY
T.
HIBOZAWA,
Wyandotte
Chemical Corp.
ANALYTICAL CHEMISTRY—METALS T u e s d a y A f t e r n o o n S e s s i o n — U r b a n Room Robert M . Lowy,
Presiding
2:15
(41) Evaluation of Chemical Procedures for the D e termination of Phosphorus in Steel. H. F .
2:40
Jones & Laughlin Steel Corp. (42) Photometric Determination of Vanadium in Tungsten Steels by the Phosphotungstovana-
BEEGHLY, J. E. PATERSON, AND T. S. TAYLOR,
date Method.
2:45
(43)
RICHARD B. LORANGER, General
Motors Corp. Solvent Extraction of Vanadium with Acetylacetone.
J. P . M C K A V E N E Y AND HENRY PREISER,
University of Pittsburgh. ! 3:10
EXPOSITION RECESS
3:30
(44) H e a t of Solution of Nickel Dimethylglyoximate.
3:55
(45)
DAVID FLEISCHER AND HENRY FREISER, Univer-
sity of Pittsburgh. Spectrophotometries Determination of Silicon in Zinc-Base Die Cast Alloys.
WRITE FOR BULLETIN N O . 139
ROBERT L. CHANCE,
General Motors Corp. (46) Determination of Tantalum in Niobium.
4:10
MARY
LOUISE THEODORE, Westinghouse Electric Corp. Pure Water Specialists Since 1878
Barnstead fkjhkjhjhkjtkh
SOCIAL HOUR
STILL &DEMINERALIZER CO. FDKJHGJFHKJGHKGHKGHK 9 Lanesville Terrace, Boston 31, Mass.
Circle No. 44 A-1 on Readers' Service Card, page 91 A
8 . 0 0 P.M., T u e s d a y , M a r c h 5 — U r b a n Room
In the tradition of the Snack Sessions which have done so much to promote fellowship and informal discussion at the meetings of both the Spectroscopy Society and the ACS in Pittsburgh, the Social Hour will provide an opportunity to relax and get acquainted. The exposition is in an adjoining room and will remain open until 10:00 P.M. Light refreshments will be served. All conferees are invited to attend as the guests of the cooperating societies. Color movie, "Our Mr. Sun," will be shown in the Monongahela Room at 8:15 P.M.
ANALYTICAL CHEMISTRY—GENERAL T u e s d a y A f t e r n o o n S e s s i o n — M o n o n g a h e l a Room P. H. C o o n ,
Presiding
2:00
(47)
pH and the Modern Analyst.
2:35
National Bureau of Standards. (48) Precipitation of Magnesium with Ethylenedia-
ROGER G. BATES,
minetetraacetic Acid. CLARK E. BRICKKR AND GREGOR PARKER, Princeton University.
3:00
HOKE stainless steel cylinders
[WITH VALVES TO MATCH]
Write for Bulletin SC455.
INCORPORATED
FLUID CONTROL SPECIALISTS 137 S. Dean St., Englewood, N. J. Circle No. 44 A-2 on Readers' Service Card, page 91 A 44 A
·
ANALYTICAL CHEMISTRY
of
Precipitation
of
Magnesium
Ethylenediaminetetraacetate. W. H. MCCURDY, J R . , AND BRUCE OCKO, Princeton University.
Use Hoke's p r e s s u r e c o n t a i n e r s f o r fixed or liquef i e d gas s a m p l i n g a p p l i c a t i o n s . T r a n s p o r t s a m p l e s in c o m p l e t e s a f e t y , w i t h o u t c o n t a m i n a t i o n . For low or h i g h p r e s s u r e service u p t o 1 8 0 0 p s i ; e q u i p p e d w i t h valves a n d safety d e v i c e s . S t o c k sizes f r o m 1 0 m i l l i l i t e r s t o o n e g a l l o n . . . special c y l i n d e r s o n order. Fully t e s t e d . ICC APPROVED.
HOKE
(49) Mechanism
3:25
3:40 3:55
EXPOSITION RECESS
(50)
Complexometric Oxidation-Reduction of Cobalt. K. L. CHENG, Westinghouse Electric Corp. (51) Indirect Photometric Titration of Milligram Quantities of Silver with (Ethylenedinitrilo) tetraacetic Acid. Differential Null-Point Method. STANLEY J.
4:15 4:30 4:45
GEDANSKY
AND LOUIS
GORDON,
Syracuse
Lniversity. (52) Complexometric Titration of Zinc and Copper Using a Pyridylazo Dye as Indicator. K. L. CHENG, Westinghouse Electric Corp. (53) Electrogravimetric Method for Determination of Copper in the Presence of Iron. PAUL K. WINTER, General Motors Corp. (54) Spectrophotometric Determination of Nitrite and Thiourea.
KENNETH
HUTCHISON
BOLTZ, Wayne State University.
AND D .
F.
