THERMAL AND SPECTROSCOPIC ANALYSES OF CAUSTIC SIDE SOLVENT EXTRACTION SOLVENT CONTACTED WITH 1 MOLARAND 3 MOLAR NITRIC ACID

Fondeur, F ; David Hobbs, D ; Samuel Fink, S

Savannah River Site (S.C.)

关键词: Chemical Reactions;    Organic Solvents;    Nitric Acid;    11 Nuclear Fuel Cycle And Fuel Materials;    Savannah River Plant;   

DOI  :  10.2172/914556
RP-ID  :  WSRC-STI-2007-00385
RP-ID  :  DE-AC09-96SR18500
RP-ID  :  914556

美国|英语

来源: UNT Digital Library

【 摘 要 】

Thermal and spectroscopic analyses were performed on multiple layers formed from contacting Caustic Side Solvent Extraction (CSSX) solvent with 1 M or 3 M nitric acid. A slow chemical reaction occurs (i.e., over several weeks) between the solvent and 1 M or 3 M nitric acid as evidenced by color changes and the detection of nitro groups in the infrared spectrum of the aged samples. Thermal analysis revealed that decomposition of the resulting mixture does not meet the definition of explosive or deflagrating material.