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

# rhenium

| Property | Value |
| --- | --- |
| Symbol | Re |
| Atomic number | 75 |
| IRI | `https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/elements/Rhenium` |
| Wikidata | [Q737](https://www.wikidata.org/wiki/Q737) |

## Standard atomic weight

| Value | Year | Source | Status | Declaration |
| --- | --- | --- | --- | --- |
| 186.207(1) | 1973 | [10.1351/pac197437040589](https://doi.org/10.1351/pac197437040589) | Current | [`AW-Re-standard`](../id/AW-Re-standard.md) |
| 186.2(1) | 1969 | [10.1351/pac197021010091](https://doi.org/10.1351/pac197021010091) | Deprecated, see [`AW-Re-standard`](../id/AW-Re-standard.md) | [`AW-Re-standard-1969`](../id/AW-Re-standard-1969.md) |
| 186.2 | 1961 | [10.1021/ja00881a001](https://doi.org/10.1021/ja00881a001) | Deprecated, see [`AW-Re-standard-1969`](../id/AW-Re-standard-1969.md) | [`AW-Re-standard-1961`](../id/AW-Re-standard-1961.md) |
| 186.22 | 1955 | [10.1021/ja01595a001](https://doi.org/10.1021/ja01595a001) | Deprecated, see [`AW-Re-standard-1961`](../id/AW-Re-standard-1961.md) | [`AW-Re-standard-1955`](../id/AW-Re-standard-1955.md) |
| 186.31 | 1931 | [10.1039/JR9310001617](https://doi.org/10.1039/JR9310001617) | Deprecated, see [`AW-Re-standard-1955`](../id/AW-Re-standard-1955.md) | [`AW-Re-standard-1931`](../id/AW-Re-standard-1931.md) |


## Isotopes

| A | Representative isotopic composition | Year | Source | Declaration | ChEBI | Wikidata |
| --- | --- | --- | --- | --- | --- | --- |
| [185](../id/Re-185.md) | 0.3740(5) | — | — | [`Abundance-Re185`](../id/Abundance-Re185.md) | — | [Q18882926](https://www.wikidata.org/wiki/Q18882926) |
| [187](../id/Re-187.md) | 0.6260(5) | — | — | [`Abundance-Re187`](../id/Abundance-Re187.md) | — | [Q18882930](https://www.wikidata.org/wiki/Q18882930) |

## Bibliography

<div class="csl-bib-body">
<div class="csl-entry">Atomic weights of the elements 1969. (1970). <i>Pure and Applied Chemistry</i>, <i>21</i>(1), 91–108. https://doi.org/10.1351/pac197021010091 <a href="https://doi.org/10.1351/pac197021010091">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1351/pac197021010091">Scholia</a></div>
<div class="csl-entry">Atomic Weights of the Elements 1973. (1974). <i>Pure and Applied Chemistry</i>, <i>37</i>(4), 589–603. https://doi.org/10.1351/pac197437040589 <a href="https://doi.org/10.1351/pac197437040589">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1351/pac197437040589">Scholia</a></div>
<div class="csl-entry">Baxter, G. P., Curie, Mme. M., Hönigschmid, O., Lebeau, P., &#38; Meyer, R. J. (1931). First Report of the Committee on the Atomic Weights of the International Union of Chemistry. <i>J. Chem. Soc.</i>, <i>0</i>(0), 1617–1627. https://doi.org/10.1039/jr9310001617 <a href="https://doi.org/10.1039/JR9310001617">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1039/JR9310001617">Scholia</a></div>
<div class="csl-entry">Cameron, A. E., &#38; Wichers, Edward. (1962). <b>Report of the International Commission on Atomic Weights<sup>*</sup>(1961)</b>. <i>Journal of the American Chemical Society</i>, <i>84</i>(22), 4175–4197. https://doi.org/10.1021/ja00881a001 <a href="https://doi.org/10.1021/ja00881a001">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1021/ja00881a001">Scholia</a></div>
<div class="csl-entry">Wichers, E. (1956). Report on Atomic Weights for 1954-55. <i>Journal of the American Chemical Society</i>, <i>78</i>(14), 3235–3240. https://doi.org/10.1021/ja01595a001 <a href="https://doi.org/10.1021/ja01595a001">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1021/ja01595a001">Scholia</a></div>
</div>

## Turtle

This resource as a file: [Rhenium.ttl](Rhenium.ttl)

```turtle
# Prototype: a suggestion, not an official CIAAW or IUPAC record. Official values are at https://ciaaw.org

@prefix adms: <http://www.w3.org/ns/adms#> .
@prefix chemrof: <https://w3id.org/chemrof/> .
@prefix ciaaw: <https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/ciaaw-draft#> .
@prefix ciaaw_draft: <https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/id/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix element: <https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/elements/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix unit: <http://qudt.org/vocab/unit/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

ciaaw_draft:AW-Re-standard-1931 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Re-standard-1955 ;
    dcterms:issued "1931"^^xsd:gYear ;
    dcterms:source <https://doi.org/10.1039/JR9310001617> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Rhenium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 186.31 ] .

ciaaw_draft:AW-Re-standard a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:issued "1973"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Re-standard-1969 ;
    dcterms:source <https://doi.org/10.1351/pac197437040589> ;
    ciaaw:ofElement element:Rhenium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 186.207 ;
            qudt:standardUncertainty 0.001 ;
            ciaaw:significantFigures 6 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-Re-standard-1955 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Re-standard-1961 ;
    dcterms:issued "1955"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Re-standard-1931 ;
    dcterms:source <https://doi.org/10.1021/ja01595a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Rhenium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 186.22 ] .

ciaaw_draft:AW-Re-standard-1961 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Re-standard-1969 ;
    dcterms:issued "1961"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Re-standard-1955 ;
    dcterms:source <https://doi.org/10.1021/ja00881a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Rhenium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 186.2 ] .

ciaaw_draft:AW-Re-standard-1969 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Re-standard ;
    dcterms:issued "1969"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Re-standard-1961 ;
    dcterms:source <https://doi.org/10.1351/pac197021010091> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Rhenium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 186.2 ;
            qudt:standardUncertainty 0.1 ;
            ciaaw:significantFigures 4 ;
            ciaaw:significantFiguresUncertainty 1 ] .

element:Rhenium a chemrof:ChemicalElement ;
    rdfs:label "rhenium"@en ;
    ciaaw:currentStandardAtomicWeight ciaaw_draft:AW-Re-standard ;
    ciaaw:hasDeclaration ciaaw_draft:AW-Re-standard,
        ciaaw_draft:AW-Re-standard-1931,
        ciaaw_draft:AW-Re-standard-1955,
        ciaaw_draft:AW-Re-standard-1961,
        ciaaw_draft:AW-Re-standard-1969 ;
    ciaaw:hasIsotope ciaaw_draft:Re-185,
        ciaaw_draft:Re-187 ;
    ciaaw:standardAtomicWeightUncertainty 0.001 ;
    ciaaw:standardAtomicWeightValue 186.207 ;
    chemrof:atomic_number 75 ;
    chemrof:symbol "Re" .
```

[All atomic weights](../atomic-weights.md) · [All isotopic abundances](../isotopic-abundances.md)