The radiochemistry of molybdenum

45 Pages·1960·1.423 MB·English

by  E M Scadden, Nathan Elmer Ballou, U.S. Atomic Energy Commission., National Research Council (U.S.). Committee on Nuclear Science. Subcommittee on Radiochemistry

National
Academy
of
Sciences
National Research council
s
NUCLEAR SCIENCE SERIES
The Radiochemistry
of Molybdenum
COMMITTEE ON NUCLEAR SCIENCE
L.F.CURTISS,Chairman ROBLEY D.EVANS, ViceCkainna?I
NationalBureauofStandards MassachusettsInstitutoefTechnology
J.A.DeJUREN, Secretary
WestinghouseElectricCorporation
H.J.CURTIS G.G.MANOV
BrookhavenNationalLaboratory Tracerlah,Inc.
SAMUEL EPSTEIN W. WAYNE MEINKE
CaliforniIanstitutoefTechnology Universityof Michigan
HERBERT GOLDSTEIN A.H.SNELL
NuclearDevelopmentCorporationof Oak RidgeNationalLaboratory
America
E.A.UEHLING
H.J.GOMBERG UniversityofWashington
UniversityofMichigan
D.M. VAN PATTER
E.D.KLEMA BartolResearchFoundation
NorthwesternUniversity
ROBERT L.PLATZMAN
ArgonneNationalLaboratory
LIA SON MEMBERS
PAUL C.AEBERSOLD W. D.URRY
AtomicEnerW Commission U.S.AirForce
J.HOWARD McMILLEN WILLIAM E.WRIGHT
NationalScienceFoundation OfficeofNavalResearch
SUBCOMMITTEE ON RADIOCHEMISTRY
W. WAYNE MEINICE,Chai?man EARL HYDE
UniversityofMlchlgan UniversityofCalifornia(Berkeley)
NATHAN BALLOU HAROLD KIRBY
Navy RadiologicaDlefenseLaboratory Mound Laboratory
GREGORY R.CHOPPIN GEORGE LEDDICOTTE
FloridaStateUniver~ity Oak RidgeNationalLaboratory
GEORGE A.COWAN ELLIS P.STEINBERG
Los Alsmos ScientifiLcshoratory ArgonneNationalLaboratory
ARTHUR W. FAIRHALL PETER C.STEVENSON
UniversityofWashington UniversityofCaliforni(aLlvermore)
HARMON FINSTON LEO YAFFE
Brookhaven,NationalLaboratory McGillUniversity
..
The Radiochernistry d Molybdenum
By E. hf.SCADDEN
and
N. E. BALLOU
U. S. Naval Radiological Defense Laboratory
San Francisco, California
January1960
Subcommittee on Radiochemistry
NationalAcademy ofSciences—National Research Council
PrintedinUSA.Price$0.S0AvaileblferomtheOfficeofTechnical
ServiceeL,MparhnentofCommerce,Waehingtcm26,D.C.

FOREWORD
‘IheSubcommittee on Rsdiochemistry 1s one of a number
of .vubcommitteeamrkhg uoder the Committee on NuclearScience
within the National Academy of Sciences-National Sesesrch Cmmcil.
ItsmemberErepresentgovernment,industrial, and univer,eity
laboratories in the areas of nwlear chemistry and analytical
chemistry.
The Subcommittee has concerned iteelf with thoseareas
of nuclear science which involve the chemist, such aa the collection
and distribution of radiochendcal procedures, the establishment of
Specificatiu for radiochemically pure reagents, the problems of
stockpiling uncontaminated materials, the availability of cyclotron
time for service irradiations, the place of rsdhchem.istry in the
undergraduate college program, etc.
Ibis series of monographs has grown out of the need for
uP_ti-*te aPilatioM of radiochsmical Info-tion and procedures.
The Subcommitteehas endeavoredto presenta serieswhichwill be of
maximumuse to theworking scientist and which contains the latest
available information. Each umograph collects in one volume the
~rtinent information required for radiochemical work with an indi-
vidual element or a group of closely related el~nts.
An e~rt in the radiochsmistry of the particular element
has written the nnnmgraph, following a standard format develo~d by
the Subcommittee. The Atomic Energy Commission has sponsored the
prtiting of the series.
The Subcommittee is confident these publications will be
useful not only to the rsdiochemist but also to the research worker
in other fields such as physics, biochemistry or medicine who wishes
to use radiochemlcal technique to solve a specific problem.
W. Wayne Meinke, Chairman
Subcommittee on Sadiochemistry
ill

CONTENTS
hKt2
I. GeneralRevienaof the korgauic and Analytical.Qnx&itry of
Mol.ybiemrn 1
IL Table of Isotopesof M.ybdenum 2
III. Reviewof ThoseFeatu.msof MolybdenumQu9mistryof QrLef bbrest
to Radiochemist’s 2
1. k=C mo~bdenum andud-ybdenumWoxbde 2
2. SolubleCarlpoundsof molybdenum 3
3. Insolublecaqmnde of mol@denum 4
49 &mpla ions of mol@denlml 8
59 Chelatecampoundaof molybdenum 9
6. SolventExtractionof molybdenum II
7. Chrcuuatographibcehaviorof molybdenum 16
e. Electrochemicalbehaviorof molybdenum 20
Iv. Dissolutionof saraplas for RadioactiveMolykdemm Deterniinatione 21
v. kunting Techniquesfor RadioactiveMolybdenum 21
VI. Collectionof Dait.ailaRdadiochemicalProceduresfor k?mlybdenum 22
v
DNTRODLICTK$N
~is volume which deals with the radiochemistry of
molybdenum ia one of a series of monographs on radiochemiatry
of the elementm. ‘l’hereis included a review of the nuclear
and chemical featuree of pertucuhr in-rest ta the radiochemist,
a discussion of problem of dieaolution of a sample and counting
techniques, and finally, a collection of radiochemical Proced-s
for the elemnta as found in the literature.
’17mseries of monograph will cover all elements for
which radiochemical procedures are pertinent. Plane include re-
vision of the monograph periodically a6 new techniques and pro-
cedures warrant. !l’hereader is therefore encouraged to call to
the attention of the author any published or unpublished material
on the radlochemimtry of molybdenum which might be included in a
revised version of the monograph.
T-i
I. GENEFbURXVIEW ~ THE INCEGANICAND ANAUTICAL m?JmTRY m mLYmENuM
WA (huprehensiveTreatiseon tigani c and TheoretAcsl~t&,
J. W Mella, Vol. XI, Chapter~ Lqgnane, Green and b., NewYork
(1931)
“Ansl@cal &amistIT of the ManhatlxinProjeot”,G J. Redden and
J. C.W@?, pp. 4x-455, M&rawHill Book b., k York (1950)
~AppliedInorgauic AIIS&SiSn, IHllebrand, MdeKl, -t and Hof-
2nd e&, “MolyMero.Y@, pp. 302-316, John Wihy and SODS, hce, NewYork
(1953)
wFtits Epbrdm Iuorgadc &mist&, P. C. ~ ThorneandE. R. ltdsrts~
QM@= m, 6th d, rev.,Nor&man Publishingb., Ino..,k York (1954)
%fnelintsHandbucbder AnorganiscbenChemi#, Sys* No. 53~ W e&~
Verlag Qusmle,G.M.B.H.Berlin(1935)
IIMOI.@&~ QYMPOWW, D. H. Klllefferand A. ldns, h’te.rsdenosPuliMshersO
NewyOrk (1952)- -
Wutlbes of Methodsof Qmmical kalysis”~ Go.EoFoLurdeH.ad J.I. Hoffmsrq
JohnWiley and Sons, hlC., New york (1938)
WiusldtativsAnalysisfor theF&e Elements”,A.A. Noyes and W.c.Bray,
The h~ b., New York (1948)
PreferenceBook of Inorganic-sW, W.lL Lather and JX. HildebraQ
3rd cd.,The Mami.llanb., NewYork (1951)
‘Scdtts StandardNst.lmdsof C&micsl Ansl@sn, N.H. Fumau~ Editor,
5th ed.,Vol. I, KNoI@denuu?’,pp. 585-613,D. Van Nosixamik., hlC.,
NewYork (1939 )
lf~atim on Imrgauic -SW’s H. -, Vol. llPElsevierPuld&hing
~., New York (1956)
1
Isotope Ealf lffe Type Of Method d FTeptim
Wcav
lip 5.7 br 19-i%(p,-)Mow
Mo91m 66 aec M& (7,n)B&h
91
M091 15.5min Mow (7,n)MO
Mo* (n,2n)ktc#l
6.95br IT lTb93(d,2n)Mo93m
ITb93(p~n)M093n
>2 ~ am a k@*
66.0hr
14.6ndn P-, 7 fiaaIm
11.5mln P-
a2min P- fiesion
See “’lhbleof Ieotopes”by D. S~ r, J. Hollader and G. -berg,
.
Reviewe of Modem PhyeicBx$ Ho. 2S Part 112April 1958for mre infm-
tion concerningdecay echems, daughterproductejetc. and for mfemnces to
tbe Ortginallitemtllm.
III. REVIEWSOF mm FEATURE m MoImDElm! CHEMISTRYOF CHIEF
IN-T ~ RADICCEWIS!tS
1. Metillic idol.y%iem.aawnd Molybdenum Tricdde
liolyWlenumIB a hanl mtal; -y In powder fomn and silveryin appar-
ance h conqactfm It has a deneltyof 10.2ani itsmlting point la
about 2620%. ‘he potential(E@ for theMeblo(VI)coupleie + 1.05volte.1
Metialsof p~p~tion of themetal includereductionof mol.ykdenuntrioxlde
with hydrcgen or carbon or reduction of ammnium molykdate with hydrogen.
Saface oxidation of the m3til prcceeds slarly at room tempexwatm.
!lhenKItalia soluble h diluta nitric acid, ~ aq= regia or hot ccm-
cent~~ euMurlc acId. Ccmcentm3tad nitric acid mnde= the metil passive.
2