Plutonium
Plutonium is a radioactive chemical element with the symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation states. It reacts with carbon, halogens, nitrogen, silicon, and hydrogen. When exposed to moist air, it forms oxides and hydrides that can expand the sample up to 70% in volume, which in turn flake off as a powder that is pyrophoric. It is radioactive and can accumulate in bones, which makes the handling of plutonium dangerous. …
WikipediaPublications
5 May 2022 English
Notes of interest with links to documents in Cold War Eastern Europe. Links to photos, maps and compelling stories.
as the "Kyshtym disaster" - an explosion at a plutonium works in Russia in 1957 which was successfully …
The National Archives · 1 January 1982 French
that brought about such protests, including an Anglo-West German agreement for the transfer of plutonium, the Convention on the Privileges and Immunities of the United Nations, the International Convention …
The National Archives · 1 January 1979 French
A file containing documents concerning the application of international treaties and conventions to West Berlin. Subjects covered in the file include the question of whether the environmental modification convention should …
material" means plutonium except that with isotonic concentration exceeding 80/£ in plutonium-238; uranium-233; …
The National Archives · 1 January 1978 English
as useful as putting on kid gloves to handle plutonium". 5. Commenting on the visit to Yugoslavia, … as useful as putting on kid gloves to handle plutonium". 5. Commenting on the visit to Yugoslavia, …
The National Archives · 1 January 1978 German
A file containing documents relating to the transfer of small quantities of plutonium from West Germany to West Berlin for research purposes, with Allied approval. The principal subject covered in the …
Erteilung einer Genehmigung zum Umgang mit 1 0 g Plutonium-239 hier: Ergebnisprotokoll eines Gespräches … Generelle Genehmigungsfähigkeit des Umgangs mit 10 g Plutonium-239 in Hochschulinstituten Bezug: Antrag des … Radiochemistry Dept., for a licence to handle 10 g of plutonium 239 Results of a meeting with representatives … can be given in principle for handling 10 g of plutonium 239 in University institutes ÜSlii. Application … I ¿ b k PaM:ict<~t I RESEARCH IN BERLIN: PLUTONIUM I my I ^ — 1 . Please refer to the exchange …
The National Archives · 1 January 1978 French
A file containing documents concerning the application of international treaties and conventions to West Berlin. Subjects covered in the file include incomplete and misleading Soviet references to the 1971 Quadripartite …
AGREED, IN PARTICULAR THE ARRANGEMENTS OVER PLUTONIUM STORAGE. THEY ACCEPTED I THE POINT THAT THE …
The National Archives · 1 January 1977 English
f Plutonium in nuclear/plants was concerned. If one country in the world went for a plutonium economy … points: (a) The question of whether or not to use plutonium in nuclear plants was a highly complicated one … about energy matters, knew well enough that plutonium had a much longer life than the other fuels possible …
The National Archives · 1974 English
A file containing documents concerning a quadripartite ambassadorial meeting about the status of Berlin. The file includes a briefing report on the administration of Berlin, compiled in preparation for a …
whether the Russians have a bit more or less plutonium: what I 2 /matters I CONFIDENTIAL I CONFIDENTIAL …
The National Archives · 1972 Bulgarian
A file containing documents concerning economic relations between Bulgaria and the United Kingdom. Subjects covered in the file include efforts to agree the establishment of an Anglo-Bulgarian joint commission; the …
gases and other gaseous hydrocarbons ex 28.50 V Plutonium, uranium 233, uranium enriched in the isotopes …
The National Archives · 1969 English
A file of correspondence and reports concerning British moves to liberalise trade with Eastern Europe. The documents cover a decision by the British Board of Trade to liberalise U.K. trade …
inclusive of the Customs Tariff, other than plutonium, uranium 233» uranium enriched in the isotopes …