7758-09-0Relevant articles and documents
The thermal behavior of potassium dinitramide. Part 1. Thermal stability
Lei, Ming,Zhang, Zhi-Zhong,Kong, Yang-Hui,Liu, Zi-Ru,Zhu, Chun-Hua,Shao, Ying-Hui,Zhang, Pei
, p. 105 - 112 (1999)
In this paper, thermal analysis, X-ray photoelectric spectroscopy (XPS), etc. were used to investigate the thermal stability of potassium dinitramide (KDN). It was found that the thermal decomposition of KDN crystal conformed to the topochemistry. The dec
Color Centers in UV-Irradiated Nitrates
Plumb, Robert C.,Edwards, John O.
, p. 3245 - 3247 (1992)
We show that the peroxonitrite anion, ONOO(1-), is a primary product when solid nitrates are irradiated with 254-nm UV and is the source of the yellow color.Many previous investigators have attempted to interpret photolysis processes in crystalline nitrates as primarily involving nitrite anions and oxygen gas, not realizing that the nitrite and oxygen can be formed by decomposition of peroxonitrite when the solid is dissolved for analysis.A small amount of nitrite is formed in nitrate crystals directly from the nitrate ions but much of it is generated by photolysis of the peroxonitrite anion.
Ray, P. C.,Dhar, N.
, p. 965 (1912)
Neutron powder diffraction study of the low-temperature phases of KNO2
Onoda-Yamamuro,Honda,Ikeda,Yamamuro,Matsuo,Oikawa,Kamiyama,Izumi
, p. 3341 - 3351 (1998)
We made neutron powder diffraction measurements for phase III (at 4, 120, 180, 220, and 250 K) and phase II (at 280 K) of KNO2. The structure of phase III was determined by the Rietveld method using the data obtained at 4 K; the initial structu
Microemulstion synthesis of powders of water-soluble energy-saturated salts
Bulavchenko,Demidova,Podlipskaya,Tatarchuk,Druzhinina,Alekseev,Logvinenko,Drebushchak
, p. 769 - 776 (2012/09/08)
The feasibility of preparing energy-saturated salts (NH4NO 3, KNO3, and NaBH4) in powders with various particle sizes in microemulsion systems based on oxyethylated surfactant Tergitol NP-4 has been demonstrated. Powders were isolated by destroying microemulsions with acetone. The regions of micellar synthesis have been determined depending on the solubilization capacities and concentrations of the reagents and salts at a fixed Tergitol NP-4 concentration (0.25 mol/L). The morphologies and particle sizes of the thus-prepared salt powders were characterized by scanning electron microscopy (SEM), X-ray powder diffraction, differential scanning calorimetry (DSC), differential thermal analysis (DTA), and thermogravimetry; the hydrodynamic radii of microemulsions were characterized by photon-correlation spectroscopy. Pleiades Publishing, Ltd., 2012.
Palladium and platinum-based catalysts in the catalytic reduction of nitrate in water: Effect of copper, silver, or gold addition
Gauthard, Florence,Epron, Florence,Barbier, Jacques
, p. 182 - 191 (2008/10/09)
Supported bimetallic palladium and platinum catalysts promoted by metals of group 11 (Cu, Ag, and Au) were prepared by control surface deposition and tested in the liquid-phase reduction of nitrates. Whereas bimetallic catalysts promoted by gold are totally inactive, copper or silver deposition leads to bimetallic catalysts active for nitrate reduction. The promoting effect of the second metal can be related to its redox properties, confirming that nitrate reduction occurs through a bifunctionnal mechanism following (i) a direct redox mechanism between promoter and nitrate and (ii) a catalytic reaction between hydrogen, chemisorbed on the noble metal, and intermediate nitrite. TEM experiments, TPR, and FTIR of chemisorbed CO studies of the different systems have been used to evidence the metal-metal interaction and the localization of the promoter. The characterization results have been correlated with the catalytic behavior of the materials.