Isotopes of tin

Tin has the most stable isotopes (10) of all elements. Tin isotopes are used in a variety of applications. Sn-112 is used as precursor ithe production of the radioisotope Sn-113 while Sn124 is used for producing Sb-124. Sn-116 and Sn-117 can both be used for the production of the medical radioisotope Sn-117m which is used in treating bone cancer. Both Sn-118 and Sn-119 have been evaluated for the production of Sn-119m. Tin isotopes can be obtained from Trace Sciences International.

Naturally occurring isotopes

This table shows information about naturally occuring isotopes, their atomic masses, their natural abundances, their nuclear spins, and thr magnetic moments. Further data for radioisotopes (radioactive isotopes) of tin are listed (including any which occur naturally) below.
Isotope Atomic mass (ma/u) Natural abundance (atom %) Nuclear spin (I) Magnetic moment (μ/μN)
112Sn 111.904826 (5) 0.97 (1) 0
114Sn 113.902784 (4) 0.66 (1) 0
115Sn 114.903348 (3) 0.34 (1) 1/2 -0.91884
116Sn 115.901747 (3) 14.54 (9) 0
117Sn 116.902956 (3) 7.68 (7) 1/2 -1.00105
118 117.901609 (3) 24.22 (9) 0
119Sn 118.903311 (3) 8.59 (4) 1/2 -1.04729
120Sn 119.9021991 (29) 32.58 (9) 0
122Sn 121.9034404 (30) 4.63 (3) 0
124Sn 123.9052743 (17) 0

Isotopic abundances of Sn
In the above picture, the most intense ion is set to 100% since this corresponds best to the output from a mass spectrometer. This is not to be confused with the relative percentage isotope abundances which total 100% for all the naturally occurring isotopes.

Radiosotope data

Further ta for naturally occuring isotopes of tin are listed above. This table gives information about some radiosotopes of tin, their masses, their half-lives, their modes of decay, their nuclear spins, and their nuclear magnetic momen.
Isotope Mass Half-life Mode of decay Nuclear spin Nuclear magnetic moment
110Sn 109.90785 4.1 h EC to 110In 0
111Sn 110.90774 35 m EC to 111In 7/2 0.61
113Sn 112.905174 1.1 d EC to 113In 1/2 -0.879
121Sn 120.904239 1.128 d β- to 121Sb 3/2 0.698
123Sn 122.905723 129.2 d β- to 123Sb 11/2 -1.370
125Sn 124.9075 9.63 d β- to 125Sb 11/2 -1.35
126Sn 125.90765 100000 y β- to 126Sb 0
127Sn 126.91035 2.12 h β- to 127Sb 11/2

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  1. Naturally occurring isotope abundances: Commission on Atomic Weights and Isotopic Abundances report for the International Union of Pure and Applied Chemistry in Isotopic Compositions of the Elents 1989, Pure and Applied Chemistry, 1998, 70, 217. [Copyright 1998 IUPAC]
  2. For further information about radioisotopes see Jonghwa Chang's (Korea Atomic Energy Research Institute) Table of the Nuclides
  3. Masses, nuclear spins, and magnetic moments: I. Mills, T. Cvitas, K. Homann, N. Kallay, and K. Kuchitsu in Quantities, Units and Symbols in Physical Chemistry, Blackwell Scientific Publications, Oxford, UK, 1988. [Copyright 1988 IUPAC]

    NMR Properties of tin

    Common reference compound: Sn(CH3)4.

    Table of NMR-active nucleus propeties of tin
      Isotope 1 Isotope 2 Isotope 3
    Isotope 115Sn 117Sn 119Sn
    Natural abundance /% 0.34 7.68 8.59
    Spin (I) 1/2 1/2 1/2
    Frequency relative to 1H = 100 (MHz) 32.718746 35.632256 37.290629
    ReceptivityP, relative to 1H = 1.00 0.000121 0.00354 0.00453
    Receptivity, DC, relative to 13C = 1.00 0.694 20.2 25.9
    Magnetogyric ratio, γ (107 rad T-1 s-1) -8.8013 -9.58879 -10.0317
    Maetic moment, μ (μN) -1.5915 -1.73385 -1.81394
    Nuclear quadrupole moment, Q/millibarn - - -132(1) [Mössbauer state]
    Line width factor, 1056l (m4) - - -


    1. R.K. Harris in Encyclopedia of Nuclear Mnetic Resonance, D.M. Granty and R.K. Harris, (eds.), vol. 5, John Wiley & Sons, Chichester, UK, 1996. I am grateful to Professor Robin Harris (University of Durham, UK) who provided much of the NMR data, which are copyright 1996 IUPAC, adapted from his contribution contained within this reference.
    2. J. Mason in Multinuclear NMR, Plenum Press, New York, USA, 1987. Where given, data for certain radioactive nuclei are from this referenc
    3. P. Pyykkö, Mol. Phys., 2008, 106, 1965-1974.
    4. P. Pyykkö, Mol. Phys., 2001, 99, 1617-1629.
    5. P. Pyykkö, Z. Naturforsch., 1992, 47a, 189. I am grateful to Professor Pekka Pyykkö (University of Helsinki, Finland) who provided the nuclear quadrupole moment data in this and the following two references.
    6. D.R. Lide, (ed.), CRC Handbook of Chemistry and Physics 1999-2000 : A Ready-Reference Book of Chemical and Physical Data (CRC Handbook of Chemistry and Physics, CRC Press, Boca Raton, Florida, USA, 79th edition, 1998.
    7. P. Pyykkö, personal communication, 1998, 204, 2008, 2010.
    8. The isotopic abundances are extracted from the naturally occurring isotopes section within WebElements.

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tin atomic number