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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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A new ANSI/ANS standard for liquid metal fire protection published
ANSI/ANS-54.8-2025, Liquid Metal Fire Protection in LMR Plants, received approval from the American National Standards Institute on September 2 and is now available for purchase.
The 2025 edition is a reinvigoration of the withdrawn ANS-54.8-1988 of the same title. The Advanced Reactor Codes and Standards Collaborative (ARCSC) identified the need for a current version of the standard via an industry survey.
Typical liquid metal reactor designs use liquid sodium as the coolant for both the primary and intermediate heat-transport systems. In addition, liquid sodium and NaK (a mixture of sodium and potassium that is liquid at room temperature) are often used in auxiliary heat-removal systems. Since these liquid metals can react readily with oxygen, water, and other compounds, special precautions must be taken in the design, construction, testing, and maintenance of the sodium/NaK systems to ensure that the potential for leakage is very small.
Richard M. Wallace
Nuclear Science and Engineering | Volume 19 | Number 3 | July 1964 | Pages 296-299
Technical Paper | doi.org/10.13182/NSE64-A20962
Articles are hosted by Taylor and Francis Online.
Nitrosylruthenium-dibutylphosphate complexes were prepared by the reaction of trinitrate-nitrosylruthenium with dibutylphosphoric acid and by the reaction of nitrosylruthenium hydroxide with dibutylphosphate in alkaline solutions. The products are mixtures of compounds of indefinite composition, some of which are monomeric and others polymeric. Complexes were also prepared by the reaction of trinitrato-nitrosylruthenium with monobutylphosphoric acid and dinitro-nitrosylruthenium with dibutylphosphoric acid.