Protactinium
Revision as of 07:13, 24 July 2013 by (username removed)
Description
A dense, radioactive, metallic element. Protactinium is a natural decay product of U238 and occurs as a constituent of uranium ores. As a metal, it is silvery, ductile and malleable. It is found primarily as an intermediate in breeder reactors.
Synonyms and Related Terms
Pa; protoactinium
| Composition | Pa (atomic no. 91) |
|---|---|
| CAS | 7440-13-3 |
| Melting Point | 1560-1575 |
| Density | 15.37 |
| Molecular Weight | atomic wt = 231.0359 |
| Boiling Point | 4227 |
Hazards and Safety
Highly toxic radioactive material. Dangerous by ingestion, inhalation and contact.