13464-97-6Relevant articles and documents
T1 and T1ρ study of proton motion in hydrazine nitrate N2H5NO3
Harrell, J. W.
, p. 1093 - 1098 (1982)
Proton T1 and T1ρ measurements have been made in hydrazine nitrate N2H5NO3 from 140 to 362 K.Two previously reported solid phases have been distinguished.In form I the relaxation times have been analyzed in terms of reorientations of the -NH3+ and -NH2 groups, and correlation times for these motions have been obtained.A detailed calculation of T1ρ due to -NH2 reorientations has made based on the geometry of the hydrazinium ion in N2H5HC2O4.The relaxation is due to both H-N dipole-dipole interactions within the -NH2 group and to H-H dipole-dipole interactions between the -NH2 and -NH3+ groups which are modulated by 180 deg flips of the -NH2+ group about the H-N-H bisectrix.In form II the correlation times for -NH3 reorientation are shorter and the correlation times for -NH2 reorientation are longer than in form I.The relaxation and free induction decay measurements show a high-mobility component in form II.
Thermal hazard analysis of mixed system of hydrazine and nitric acid
Miyake,Kimura,Satoh,Shimizu,Inano,Ogawa
, p. 633 - 636 (2006)
In order to obtain a better understanding of the thermal hazard of hydrazine and nitric acid mixtures which are used in plutonium and uranium recovery by extraction (PUREX) process during recycling of spent fuel in nuclear plant, DSC was carried out for the mixed system made by the small scale reaction calorimeter super-CRC in various conditions. It was found that the concentration of the nitric acid has a strong influence on the thermal behavior of the mixed system, and hydrazine nitrate which is formed in the reaction in the mixture was determined by DSC with FTIR analysis.
