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Thorium MeSH Descriptor Data 2025


MeSH Heading
Thorium
Tree Number(s)
D01.268.271.100.900
D01.268.556.850
D01.496.749.305.100.900
D01.552.020.889
D01.552.544.850
Unique ID
D013910
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D013910
Scope Note
A radioactive element of the actinide series of metals. It has an atomic symbol Th, atomic number 90, and atomic weight 232.04. It is used as fuel in nuclear reactors to produce fissionable uranium isotopes. Because of its radioopacity, various thorium compounds are used to facilitate visualization in roentgenography.
Related Numbers
7440-29-1
CAS Type 1 Name
Thorium
Date Established
1966/01/01
Date of Entry
1999/01/01
Revision Date
2017/04/25
Thorium Preferred
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