Baker's Analyzed - Volume 39 - Number 1 - Laboratory research articles

Sep 21, 2026

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Volume 39, Number 1 of "Baker's Analyzed" presents laboratory research and analytical chemistry content, organized with a table of contents and multiple article entries. The lead study describes a standard approach to determining sulfide sulfur via conversion to hydrogen sulfide, distillation into an ammoniacal cadmium solution, formation of cadmium sulfide, and iodimetric titration, then discusses issues caused by pH adjustment and gaseous loss. Alternative titration strategies are compared, motivating a vacuum titration using iodine to reduce those errors and improve reliability.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages28

Reading Time1 h 11 min

AccessFree to download

A Vacuum Titration for the Determination of Sulfide Sulfur

Potentiometric Determination of Zinc Oxide in Rubber

Note on the Differentiation of Glass and Sand in Residues

Detection of Metallic Copper by Electrolysis

Determination of Copper in Iron and Steel as the Thiocyanate

Antimonial Lead as Reductant for Stannic Ions

LABORATORY SUGGESTIONS

A Simple Syringe Microburette

Distillation Column with Wetted Wall

Several Uses of a Spring-Operated Hypodermic Syringe

Shielding the Filtrate during Overnight Filtration

Distillation Aid

An Inexpensive Burner Chimney

Inexpensive Test Tube Racks

Dispensing Viscous Liquids

Supplying Water at Constant Temperature and Uniform Rate

Miscellany

VOLUME 39 NUMBER I 3 | J. | T. | | B | | A K E R | C H E M I C A L | C O. | | --- | --- | --- | --- | --- | --- | --- | --- | | PHIL | | l | | P | SBU RG。N. | | | bublished by This yardstick can SAVE you # "Baker's Analyzed" C.P.CHEMICALSSecond,you get quick shipments—for Baker has 72 ofthe leading Laboratory Houses in U.S.A.and CanadaWhen you ship in case lots to one point you SAVEready to give you what you want when you want it.On 5 case lots-5%On 25 case lots-approx.10%Apply this Baker yardstick of values-Quality,Price,And remember when you buy Baker's Analyzed C.P.Service.Order and specify Baker's Analyzed C.P.Chemicals from your favorite jobber,you get two addi-Chemicals from your favorite Laboratory Supplytional measurement values.House.Order in 5 case or 25 case lots and save up to10%extra.First,you get Laboratory Chemicals with the actual lotanalysis on the label.The degree of purity achievedJ.T.Baker Chemical Co.,Executire Offices and Plant,is plainly labeled-NOT just maximum limits ofPhillipsburg,N.J.,Branch Ofices,New York,Phila-impurities.delphia,Boston,Chicago and Los Angeles. Baker's Chemica1s C.P.ANALY ZED · FINE · INDUSTRIAL # Table of Contents Page # A Vacuum Titration for the Determination ofSulfide Sulfur Iugo Zahnd Robert K.Maurmeyer 4 Ernest M.Livingston Potentiometric Determination of Zinc Oxidein Rubber 6 P.Ralph Dowden Note on the Differentiation of Glass andSand in Residues 8 George L.Keenan Detection of Metallic Copper by ElectrolysisC.Franklin Miller9 Determination of Copper in Iron and Steel as 9 L.H.James the Thiocyanate 14 Charles Goldberg Antimonial Lead as Reductant for Stannic Ions # LABORATORY SUGGESTIONS A Simple Syringe MicroburetteH.J.Dunn15Distillation Column with Wetted WallPaul Cheremisinoff16Several Uses or a Spring-OperatedHypodern:ic SyringeKenneth E.Kress17Shielding the Filtrate during(vernight FiltrationC.James Conner18Distillation AidD.H.Matheson20An Inexpensive Burner ChimneyC.K.Hancock20Inexpensive Test Tube RacksBowen F.Sweet21Dispensing Viscous LiquidsM.Z.Poliakoff22Supplying Water at Constant Temperature andUniform RateClarence T.MasonRoland Harper23Miscellany24 I'his company is not responsible tor the authenticity and originality of articlesherein contained.They are oftered for the service they may render.For re-publication ot any artictes permission must first be obtained from the editor. use it wisely J.T.Baker Chemical Co.,Executive Offices and Plant:Phillipsburg,N.J. Subscttptiot rate,121ssues 51.001n U.S.and Possessions.Canada and oreign $1.50 S.B.WILDRICK,Editor The springboard of scientific advance for the second half of the TwentiethCentury is the tremendous record of achievement of the first ffty years. Scientifc progress in that period—so great as to overshadow the technicaladvance of all of the preceding history of mankind—is enormously reflectedin the public welfare.Modern science has made great changes in the standardof living.1950 finds the American people better fed,better clothed,betterhoused,than ever before. The half century now ended produced revolutionary changes in transpor-tation methods;saw great new industries develop as the result of researchin the field of electronics;from the laboratory came new fibers,new alloys,synthetics,plastics;improvements in machinery and methods of processingmade possible the mass production of countless articles in everyday use. In the field of medicine the record is equally impressive.Life expectancyhas been greatly increased since 1900.Great strides have been made in thecontrol of infectious diseases.The physician has at his command many newdrugs and techniques,unknown 50 years ago. Timesaving,laborsaving equipment in industry,making possible ahigher rate of production per man-hour,has given the average man moremoney,more leisure,a greater opportunity to enjoy the benefits which sciencehas brought to modern

FAQs

What is the purpose of the vacuum titration method described for sulfide sulfur?

It is designed to avoid errors from pH adjustment and losses/oxidation issues seen in other iodimetric approaches by using a vacuum titration with iodine to improve recovery and accuracy.

How is sulfide sulfur determined in the standard method discussed?

Sulfide sulfur is converted to hydrogen sulfide, distilled into an ammoniacal cadmium saltsolution, cadmium sulfide is formed, and then the product is titrated iodimetrically by alternate additions of acid and standard iodine.

What kinds of laboratory guidance are included beyond the main research articles?

The issue contains a section titled "LABORATORY SUGGESTIONS" with practical items such as syringe microburettes, distillation setups, filtration shielding, and other lab equipment/process tips.

Sep 21, 2026

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