JOM KITA KE POLITEKNIK

Separation of Hafnium from Zirconium and Their Determination: Separation by Anion-Exchange (Record no. 601)

MARC details
042 ## - AUTHENTICATION CODE
Authentication code dc
100 10 - MAIN ENTRY--PERSONAL NAME
Personal name Machlan, Lawrence A.
Relator term author
9 (RLIN) 319
245 00 - TITLE STATEMENT
Title Separation of Hafnium from Zirconium and Their Determination: Separation by Anion-Exchange
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Name of publisher, distributor, etc. [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology,
Date of publication, distribution, etc. 1962.
500 ## - GENERAL NOTE
General note /pmc/articles/PMC5324969/
520 ## - SUMMARY, ETC.
Summary, etc. A procedure is described for the separation of hafnium from zirconium and their individual determination. The sample is dissolved in sulfuric and hydrofluoric acids and the hydrofluoric acid removed by fuming. After dilution with water, the solution is transferred to a column containing a strong quaternary amine anion-exchange resin (Dowex-1). The hafnium is eluted with diluted (3.5 percent by volume) sulfuric acid solution. Zirconium is removed by elution with 10 percent by volume sulfuric acid solution. The elements are precipitated with cupferron, ignited, and weighed as the oxides. For samples containing from twenty to eighty percent of zirconium, a second separation of the hafnium fraction using the column is necessary.
540 ## - TERMS GOVERNING USE AND REPRODUCTION NOTE
Terms governing use and reproduction
540 ## - TERMS GOVERNING USE AND REPRODUCTION NOTE
Terms governing use and reproduction https://creativecommons.org/publicdomain/zero/1.0/
540 ## - TERMS GOVERNING USE AND REPRODUCTION NOTE
Terms governing use and reproduction The Journal of Research of the National Bureau of Standards Section A is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. Articles from J Res may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright.
546 ## - LANGUAGE NOTE
Language note en
690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN)
Topical term or geographic name as entry element Article
655 7# - INDEX TERM--GENRE/FORM
Genre/form data or focus term Text
Source of term local
700 10 - ADDED ENTRY--PERSONAL NAME
Personal name Hague, John L.
Relator term author
9 (RLIN) 320
786 0# - DATA SOURCE ENTRY
Note J Res Natl Bur Stand A Phys Chem
856 41 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="http://dx.doi.org/10.6028/jres.066A.053">http://dx.doi.org/10.6028/jres.066A.053</a>
Public note Connect to this object online.

No items available.