> **PROTOTYPE:** a suggestion, not an official CIAAW or IUPAC page. Official values are at [ciaaw.org](https://ciaaw.org).

# Comparison with BODR

Isotopic abundances in this data compared with the relative abundances in the isotopes file of the [Blue Obelisk Data Repository](https://github.com/egonw/bodr) (BODR), matched on atomic number and mass number. Values are in percent. BODR gives no uncertainty: a local value must equal the BODR value, and for a local interval the BODR value must fall within it. The comparison is made by `check_bodr.py`.

<div class="csl-bib-body">
<div class="csl-entry">O’Boyle, N. M., Guha, R., Willighagen, E. L., Adams, S. E., Alvarsson, J., Bradley, J.-C., Filippov, I. V., Hanson, R. M., Hanwell, M. D., Hutchison, G. R., James, C. A., Jeliazkova, N., Lang, A. S., Langner, K. M., Lonie, D. C., Lowe, D. M., Pansanel, J., Pavlov, D., Spjuth, O., … Murray-Rust, P. (2011). Open Data, Open Source and Open Standards in chemistry: The Blue Obelisk five years on. <i>Journal of Cheminformatics</i>, <i>3</i>(1). https://doi.org/10.1186/1758-2946-3-37 <a href="https://doi.org/10.1186/1758-2946-3-37">CrossRef</a></div>
</div>

Compared on 2026-11-05: 289 isotopes in `ciaaw.ttl`, 3171 items in BODR (Debian package bodr 10-3).

| Result | Count |
| --- | --- |
| Different values | 133 |
| No value | 1 |
| Not found | 0 |
| Unexpected unit | 0 |
| Only in the resource | 0 |

## Different values

BODR has abundance for the isotope, and it differs from the local one.

| Isotope | Local | Value in resource | Item |
| --- | --- | --- | --- |
| barium-130 | 0.11~0.01 | 0.106 | Ba130 |
| barium-132 | 0.10~0.01 | 0.101 | Ba132 |
| barium-134 | 2.42~0.15 | 2.417 | Ba134 |
| barium-135 | 6.59~0.10 | 6.592 | Ba135 |
| barium-136 | 7.85~0.24 | 7.854 | Ba136 |
| barium-137 | 11.23~0.23 | 11.232 | Ba137 |
| barium-138 | 71.70~0.29 | 71.698 | Ba138 |
| cadmium-106 | 1.245~0.022 | 1.25 | Cd106 |
| cadmium-108 | 0.888~0.011 | 0.89 | Cd108 |
| cadmium-110 | 12.470~0.061 | 12.49 | Cd110 |
| cadmium-111 | 12.795~0.012 | 12.80 | Cd111 |
| cadmium-112 | 24.109~0.007 | 24.13 | Cd112 |
| cadmium-113 | 12.227~0.007 | 12.22 | Cd113 |
| cadmium-114 | 28.754~0.081 | 28.73 | Cd114 |
| cadmium-116 | 7.512~0.054 | 7.49 | Cd116 |
| copper-63 | 69.15~0.15 | 69.17 | Cu63 |
| copper-65 | 30.85~0.15 | 30.83 | Cu65 |
| dysprosium-156 | 0.056~0.003 | 0.06 | Dy156 |
| dysprosium-158 | 0.095~0.003 | 0.10 | Dy158 |
| dysprosium-160 | 2.329~0.018 | 2.34 | Dy160 |
| dysprosium-161 | 18.889~0.042 | 18.91 | Dy161 |
| dysprosium-162 | 25.475~0.036 | 25.51 | Dy162 |
| dysprosium-163 | 24.896~0.042 | 24.90 | Dy163 |
| dysprosium-164 | 28.260~0.054 | 28.18 | Dy164 |
| erbium-162 | 0.139~0.005 | 0.14 | Er162 |
| erbium-164 | 1.601~0.003 | 1.61 | Er164 |
| erbium-166 | 33.503~0.036 | 33.61 | Er166 |
| erbium-167 | 22.869~0.009 | 22.93 | Er167 |
| erbium-168 | 26.978~0.018 | 26.78 | Er168 |
| erbium-170 | 14.910~0.036 | 14.93 | Er170 |
| gadolinium-152 | 0.204~0.002 | 0.20 | Gd152 |
| gadolinium-154 | 2.187~0.009 | 2.18 | Gd154 |
| gadolinium-155 | 14.828~0.060 | 14.80 | Gd155 |
| gadolinium-156 | 20.493~0.022 | 20.47 | Gd156 |
| gadolinium-157 | 15.657~0.017 | 15.65 | Gd157 |
| gadolinium-158 | 24.820~0.020 | 24.84 | Gd158 |
| gadolinium-160 | 21.811~0.028 | 21.86 | Gd160 |
| germanium-70 | 20.52~0.19 | 20.84 | Ge70 |
| germanium-72 | 27.45~0.15 | 27.54 | Ge72 |
| germanium-73 | 7.76~0.08 | 7.73 | Ge73 |
| germanium-74 | 36.52~0.12 | 36.28 | Ge74 |
| germanium-76 | 7.75~0.12 | 7.61 | Ge76 |
| helium-3 | 0.0002~0.0002 | 0.000137 | He3 |
| helium-4 | 99.9998~0.0002 | 99.999863 | He4 |
| hafnium-174 | 0.161~0.002 | 0.16 | Hf174 |
| hafnium-176 | 5.24~0.14 | 5.26 | Hf176 |
| hafnium-177 | 18.58~0.09 | 18.60 | Hf177 |
| hafnium-179 | 13.63~0.03 | 13.62 | Hf179 |
| hafnium-180 | 35.12~0.16 | 35.08 | Hf180 |
| mercury-198 | 10.04~0.03 | 9.97 | Hg198 |
| mercury-199 | 16.94~0.12 | 16.87 | Hg199 |
| mercury-200 | 23.14~0.09 | 23.10 | Hg200 |
| mercury-201 | 13.17~0.09 | 13.18 | Hg201 |
| mercury-202 | 29.74~0.13 | 29.86 | Hg202 |
| mercury-204 | 6.82~0.04 | 6.87 | Hg204 |
| indium-113 | 4.281~0.052 | 4.29 | In113 |
| indium-115 | 95.719~0.052 | 95.71 | In115 |
| iridium-191 | 37.23~0.09 | 37.3 | Ir191 |
| iridium-193 | 62.77~0.09 | 62.7 | Ir193 |
| krypton-78 | 0.355~0.003 | 0.35 | Kr78 |
| krypton-80 | 2.286~0.010 | 2.28 | Kr80 |
| krypton-82 | 11.593~0.031 | 11.58 | Kr82 |
| krypton-83 | 11.500~0.019 | 11.49 | Kr83 |
| krypton-84 | 56.987~0.015 | 57.00 | Kr84 |
| krypton-86 | 17.279~0.041 | 17.30 | Kr86 |
| lanthanum-138 | 0.08881~0.00071 | 0.090 | La138 |
| lanthanum-139 | 99.91119~0.00071 | 99.910 | La139 |
| lutetium-175 | 97.414~0.005 | 97.41 | Lu175 |
| lutetium-176 | 2.586~0.005 | 2.59 | Lu176 |
| molybdenum-100 | 9.744~0.065 | 9.63 | Mo100 |
| molybdenum-92 | 14.649~0.106 | 14.84 | Mo92 |
| molybdenum-94 | 9.187~0.033 | 9.25 | Mo94 |
| molybdenum-95 | 15.873~0.030 | 15.92 | Mo95 |
| molybdenum-96 | 16.673~0.008 | 16.68 | Mo96 |
| molybdenum-97 | 9.582~0.015 | 9.55 | Mo97 |
| molybdenum-98 | 24.292~0.080 | 24.13 | Mo98 |
| neodymium-142 | 27.152~0.040 | 27.2 | Nd142 |
| neodymium-143 | 12.174~0.026 | 12.2 | Nd143 |
| neodymium-144 | 23.798~0.019 | 23.8 | Nd144 |
| neodymium-145 | 8.293~0.012 | 8.3 | Nd145 |
| neodymium-146 | 17.189~0.032 | 17.2 | Nd146 |
| neodymium-148 | 5.756~0.021 | 5.7 | Nd148 |
| neodymium-150 | 5.638~0.028 | 5.6 | Nd150 |
| platinum-190 | 0.012~0.002 | 0.014 | Pt190 |
| platinum-194 | 32.864~0.410 | 32.967 | Pt194 |
| platinum-195 | 33.775~0.240 | 33.832 | Pt195 |
| platinum-196 | 25.211~0.340 | 25.242 | Pt196 |
| platinum-198 | 7.356~0.130 | 7.163 | Pt198 |
| sulfur-36 | [0.0129, 0.0187] | 0.02 | S36 |
| selenium-74 | 0.86~0.03 | 0.89 | Se74 |
| selenium-76 | 9.23~0.07 | 9.37 | Se76 |
| selenium-77 | 7.60~0.07 | 7.63 | Se77 |
| selenium-78 | 23.69~0.22 | 23.77 | Se78 |
| selenium-80 | 49.80~0.36 | 49.61 | Se80 |
| selenium-82 | 8.82~0.15 | 8.73 | Se82 |
| samarium-144 | 3.08~0.04 | 3.07 | Sm144 |
| samarium-147 | 15.00~0.14 | 14.99 | Sm147 |
| samarium-148 | 11.25~0.09 | 11.24 | Sm148 |
| samarium-150 | 7.37~0.09 | 7.38 | Sm150 |
| samarium-152 | 26.74~0.09 | 26.75 | Sm152 |
| samarium-154 | 22.74~0.14 | 22.75 | Sm154 |
| tantalum-180 | 0.01176~0.00023 | 0.012 | Ta180 |
| tantalum-181 | 99.98824~0.00023 | 99.988 | Ta181 |
| thorium-232 | 99.98~0.02 | 100 | Th232 |
| uranium-234 | 0.0054~0.0005 | 0.0055 | U234 |
| uranium-235 | 0.7204~0.0006 | 0.7200 | U235 |
| uranium-238 | 99.2742~0.0010 | 99.2745 | U238 |
| xenon-124 | 0.095~0.005 | 0.09 | Xe124 |
| xenon-126 | 0.089~0.003 | 0.09 | Xe126 |
| xenon-128 | 1.910~0.013 | 1.92 | Xe128 |
| xenon-129 | 26.401~0.138 | 26.44 | Xe129 |
| xenon-130 | 4.071~0.022 | 4.08 | Xe130 |
| xenon-131 | 21.232~0.051 | 21.18 | Xe131 |
| xenon-132 | 26.909~0.055 | 26.89 | Xe132 |
| xenon-134 | 10.436~0.035 | 10.44 | Xe134 |
| xenon-136 | 8.857~0.072 | 8.87 | Xe136 |
| ytterbium-168 | 0.126~0.001 | 0.13 | Yb168 |
| ytterbium-170 | 3.023~0.002 | 3.04 | Yb170 |
| ytterbium-171 | 14.216~0.007 | 14.28 | Yb171 |
| ytterbium-172 | 21.754~0.010 | 21.83 | Yb172 |
| ytterbium-173 | 16.098~0.009 | 16.13 | Yb173 |
| ytterbium-174 | 31.896~0.026 | 31.83 | Yb174 |
| ytterbium-176 | 12.887~0.030 | 12.76 | Yb176 |
| zinc-64 | 49.17~0.75 | 48.63 | Zn64 |
| zinc-66 | 27.73~0.98 | 27.90 | Zn66 |
| zinc-67 | 4.04~0.16 | 4.10 | Zn67 |
| zinc-68 | 18.45~0.63 | 18.75 | Zn68 |
| zinc-70 | 0.61~0.10 | 0.62 | Zn70 |
| zirconium-90 | 51.47~0.06 | 51.45 | Zr90 |
| zirconium-91 | 11.23~0.06 | 11.22 | Zr91 |
| zirconium-92 | 17.16~0.04 | 17.15 | Zr92 |
| zirconium-94 | 17.36~0.07 | 17.38 | Zr94 |
| zirconium-96 | 2.78~0.04 | 2.80 | Zr96 |

## No value

The isotope is in BODR, but without a abundance.

| Isotope | Local | Value in resource | Item |
| --- | --- | --- | --- |
| thorium-230 | 0.02~0.02 | — | Th230 |