c ca cb cc cd ce cf cg ch ci ck cl cm cn co cp cr cs ct cu cw cy cz

Перевод: caesium

[существительное]
цезий

Тезаурус:

1. The authors should not that, contrary to their assertion, there is a large literature on the use of zeolites to amend soils, including evidence of useful caesium binding.
2. I suspect that most chemists will experience a twinge of alarm to hear that ammonium ferric hexacyanoferrate II is an approved feed additive in Norway for animals destined for human consumption and wonder why this expensive synthetic material is being studied in the UK as a way to reduce the transfer of caesium from feed to animal, rather than cheap, naturally occurring, widely available alternatives like bentonites or zeolites.
3. These range from a matter of hours to thirty years for Caesium 137 and 24,000 years for Plutonium 239.
4. Early development studies in SIXEP (site ion exchange effluent plant) at Sellafield showed that the sodium form of clinoptilolite had the highest preference for caesium and this has been confirmed by work at this university on both US and Indonesian natural clinoptilolites.
5. Caesium 137, for example, which was released by the Chernobyl explosion, emits both gamma and beta rays and concentrates in muscles and the reproductive organs.
6. The true basis of the cation selectivity of zeolites is not completely understood but can usually be explained in terms of the specific molecular architecture of the zeolite frameworks (always large enough to accommodate caesium), the relative amount of silicon and aluminium in the zeolite framework, and the hydration state of the cations.
7. The legacy of Chernobyl by Segal and Morris mentions the well-known selectivity for caesium displayed by synthetic and natural zeolites.
8. In just five years, between 1970 and 1975, the amount released from the pipelines of one single radionuclide, caesium, had risen from 31,170 curies to 141,377.
9. Levels of caesium in upland grasses increased dramatically after Chernobyl, while the ratio of caesium 137 to 134 fell dramatically to a value characteristic of Chernobyl fallout.
10. Caesium is, of course, the largest simple cation in the periodic table and zeolites are widely used as detergent builders to "bind" smaller ions, eg Ca 2+ .
11. Zeolites and caesium isotope contamination
12. Tiny particles of uranium oxide, containing radioactive isotopes of caesium, strontium and plutonium, had been scattered in their millions over the surrounding countryside.