strontium

Property	Value
Symbol	Sr
Atomic number	38
IRI	`https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/elements/Strontium`
Wikidata	Q938

Standard atomic weight

Value	Year	Source	Status	Declaration
87.62(1)	1969	10.1351/pac197021010091	Current	`AW-Sr-standard`
87.62	1961	10.1021/ja00881a001	Deprecated, see `AW-Sr-standard`	`AW-Sr-standard-1961`
87.63	1911	10.1021/ja01928a001	Deprecated, see `AW-Sr-standard-1961`	`AW-Sr-standard-1911`
87.62	1909	10.1021/ja01931a001	Deprecated, see `AW-Sr-standard-1911`	`AW-Sr-standard-1909`
87.6	1902	10.1007/BF01370337	Deprecated, see `AW-Sr-standard-1909`	`AW-Sr-standard-1902`

Notes: g r

Isotopes

A	Representative isotopic composition	Year	Source	Declaration	ChEBI	Wikidata
84	0.0056(2)	—	—	`Abundance-Sr84`	—	Q2226267
86	0.0986(20)	—	—	`Abundance-Sr86`	—	Q2267980
87	0.0700(20)	—	—	`Abundance-Sr87`	—	Q4300037
88	0.8258(35)	—	—	`Abundance-Sr88`	—	Q3355112

Notes: g r

Notes

g Geological and biological materials are known in which the element has an isotopic composition outside the limits for normal material. The difference between the atomic weight of the element in such materials and that given in the table may exceed the stated uncertainty.

r Range in isotopic composition of normal terrestrial material prevents a more precise standard atomic weight being given; the tabulated value and uncertainty should be applicable to normal material.

Bibliography

Atomic weights of the elements 1969. (1970). Pure and Applied Chemistry, 21(1), 91–108. https://doi.org/10.1351/pac197021010091 CrossRef Scholia

Cameron, A. E., & Wichers, Edward. (1962). Report of the International Commission on Atomic Weights^*(1961). Journal of the American Chemical Society, 84(22), 4175–4197. https://doi.org/10.1021/ja00881a001 CrossRef Scholia

Clarke, F. W., Ostwald, W., Thorpe, T. E., & Urbain, G. (1909). REPORT OF THE INTERNATIONAL COMMITTEE ON ATOMIC WEIGHTS. 1909. Journal of the American Chemical Society, 31(1), 1–6. https://doi.org/10.1021/ja01931a001 CrossRef Scholia

Clarke, F. W., Thorpe, T. E., Ostwald, W., & Urbain, G. (1910). ANNUAL REPORT OF THE INTERNATIONAL COMMITTEE ON ATOMIC WEIGHTS, 1911. Journal of the American Chemical Society, 32(10), 1113–1116. https://doi.org/10.1021/ja01928a001 CrossRef Scholia

Richards, Baxter, Hinrichsen, Köthner, P., & Pellini, S. (1902). Zur Festsetzung der Atomgewichte. Fresenius’ Zeitschrift für analytische Chemie, 41(2), 139–140. https://doi.org/10.1007/bf01370337 CrossRef Scholia

Turtle

This resource as a file: Strontium.ttl

# 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 skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix unit: <http://qudt.org/vocab/unit/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

ciaaw:note-g a ciaaw:Footnote ;
    skos:definition "Geological and biological materials are known in which the element has an isotopic composition outside the limits for normal material. The difference between the atomic weight of the element in such materials and that given in the table may exceed the stated uncertainty."@en ;
    skos:notation "g" .

ciaaw:note-r a ciaaw:Footnote ;
    skos:definition "Range in isotopic composition of normal terrestrial material prevents a more precise standard atomic weight being given; the tabulated value and uncertainty should be applicable to normal material."@en ;
    skos:notation "r" .

ciaaw_draft:AW-Sr-standard-1902 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sr-standard-1909 ;
    dcterms:issued "1902"^^xsd:gYear ;
    dcterms:source <https://doi.org/10.1007/BF01370337> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Strontium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 87.6 ] .

ciaaw_draft:AW-Sr-standard a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:issued "1969"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sr-standard-1961 ;
    dcterms:source <https://doi.org/10.1351/pac197021010091> ;
    ciaaw:footnote ciaaw:note-g,
        ciaaw:note-r ;
    ciaaw:ofElement element:Strontium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 87.62 ;
            qudt:standardUncertainty 0.01 ;
            ciaaw:significantFigures 4 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-Sr-standard-1909 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sr-standard-1911 ;
    dcterms:issued "1909"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sr-standard-1902 ;
    dcterms:source <https://doi.org/10.1021/ja01931a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Strontium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 87.62 ] .

ciaaw_draft:AW-Sr-standard-1911 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sr-standard-1961 ;
    dcterms:issued "1911"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sr-standard-1909 ;
    dcterms:source <https://doi.org/10.1021/ja01928a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Strontium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 87.63 ] .

ciaaw_draft:AW-Sr-standard-1961 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sr-standard ;
    dcterms:issued "1961"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sr-standard-1911 ;
    dcterms:source <https://doi.org/10.1021/ja00881a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Strontium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 87.62 ] .

element:Strontium a chemrof:ChemicalElement ;
    rdfs:label "strontium"@en ;
    ciaaw:currentStandardAtomicWeight ciaaw_draft:AW-Sr-standard ;
    ciaaw:hasDeclaration ciaaw_draft:AW-Sr-standard,
        ciaaw_draft:AW-Sr-standard-1902,
        ciaaw_draft:AW-Sr-standard-1909,
        ciaaw_draft:AW-Sr-standard-1911,
        ciaaw_draft:AW-Sr-standard-1961 ;
    ciaaw:hasIsotope ciaaw_draft:Sr-84,
        ciaaw_draft:Sr-86,
        ciaaw_draft:Sr-87,
        ciaaw_draft:Sr-88 ;
    ciaaw:standardAtomicWeightUncertainty 0.01 ;
    ciaaw:standardAtomicWeightValue 87.62 ;
    chemrof:atomic_number 38 ;
    chemrof:symbol "Sr" .

All atomic weights · All isotopic abundances