The thermal decomposition of hydroxylamine aqueous solutions in two different concentrations and three temperatures was studied in the presence of NaCl, KCl and Na2SO4 using isoperibolic calorimetry. The purpose of this study was to generate data for comparison of the thermal decomposition of di...

Drinking water treatment residuals (WTRs) have been applied in organic pollutants degradation in water by generating reactive oxygen species from peroxymonosulfate (PMS), however, the slow transformation of Fe(III) to Fe(II) may limit its widespread application. Hydroxylamine (HA) was introduced...

A mathematical model is described that may be used to determine the safety of hydroxylamine nitrate (HAN) solutions used in solvent extraction purification of plutonium. The most significant hazard associated with hydroxylamine use in processing plutonium is its rapid, autocatalytic reaction wit...

A mathematical model that predicts hydroxylamine nitrate (HAN) (NH2OH·HNO3) stability is applied to aqueous solutions containing HAN, nitric acid and plutonium that are used in plutonium purification processes. The model estimates the stability of these solutions with respect to the rapid, haza...

Hydroxylamine nitrate (HAN) is an important member of the hydroxylamine compound family with applications that include equipment decontamination in the nuclear industry and aqueous or solid propellants. Due to its instability and autocatalytic behavior, HAN has been involved in several incidents...

Hydroxylamine nitrate (HAN) is an important member of the hydroxylamine family and it is a liquid propellant when combined with alkylammonium nitrate fuel in an aqueous solution. Low concentrations of HAN are used primarily in the nuclear industry as a reductant in nuclear material processing an...

Hydroxylamine (HA) and hydroxylamine nitrate (HAN) have been involved independently in several tragic accidents, which incurred numerous fatalities and injuries. Following these incidents, adiabatic calorimetry and computational chemistry research was conducted on those compounds, suggesting pot...

An efficient heterotrophic nitrifying/aerobic denitrifying strain, Photobacterium sp. NNA4 was isolated from a recirculating aquaculture system (RAS). NNA4 was capable of utilizing ammonia, nitrate or nitrite as sole N-source with maximal removal rates of 12.5 mg/L/h for NH4+N, 16.4 mg/L/h for N...

Reactive carbonyl compounds (RCC) generated by polyunsaturated fatty acid oxidation alter progressively cellular and tissular proteins by forming adducts on free amino groups and thiol residues (carbonyl stress). Carbonyl scavengers may neutralize RCC, but their protective effect in atherosclero...

We report the initiation mechanisms and subsequent chemical decompositions of energetic metal-organic frameworks (MOFs) nickel hydrazine nitrate (NHN) crystal at high temperatures and high temperatures coupled with high pressures by ab initio molecular dynamics simulations. The initial decomposi...

Hydrazine is an intermediate product of the anaerobic ammonium oxidation (Anammox) process where both ammonium and nitrite in wastewater are converted to nitrogen gas by bacteria. In this study the effect of external hydrazine addition (5, 10, 15, and 20 mg/L) on the start-up period of the Anamm...

In this paper, ZnO nanorods (ZnONRs) have been synthesized via chemical solution approach. The chemicals such as the nitrate salt of zinc, hexamethylenetetramine and NaOH were utilized and the acquired solution was refluxed at ∼90 °C for 60 min for fabrication of nanorods. Thereafter, the obta...

Nickel complexes have recently been presented as prospective catalytic materials for hydrogen H2 evolution by hydrolysis of sodium borohydride NaBH4. An attractive complex is nickel hydrazine nitrate [Ni(N2H4)3][NO3]2 for which little variations in the synthesis procedure result in different mor...

Herein, we report the synthesis, characterizations, photocatalytic and sensing applications of ultra-wide cadmium sulfide (CdS) nanosheets. The CdS nanosheets were prepared by a simple solution process at low-temperature using cetyltrimethyl ammonium bromide (CTAB) as a stabilizing agent. The sy...

Two new cadmium (II) complexes, with the formulae [Cd (L1) I2] (1) and [Cd (L2) Br2] (2) where L1 and L2 are Schiff base ligands 2-(phenyl(pyridine-2-yl)methyleneamino)ethylamino)ethanol and 2-(1-(pyridine-2-yl)ethylideneamino) ethylamino)ethanol respectively, have been synthesized and character...

Cadmium is a chemical element that finds application in many fields. As a consequence of the numerous human activities related to its wide spread applications, the environment gets contaminated. One of the most severe consequences happens in aquatic habitats. Cadmium removal from aqueous solutio...

The complex formation between cadmium(II) ions and chloride and bromide ions in the melt of 0.8CH3CONH20.2Ca(NO3)2·4H2O has been studied at six temperatures between 30 and 80°C. The formation constants of the complexes CdX+ and CdX2 (X=Cl, Br) were determined from emf measurements by means o...

Four cadmium(II) complexes, [CdL2] (1), [Cd(HL)Cl2] (2), [Cd(HL)Br2] (3) and [Cd(HL)(NO3)2(H2O)] (4) of di-2-pyridyl ketone benzoylhydrazone (HL) have been synthesized and characterized by different physico-chemical methods. The tetradentate aroylhydrazone acts as a tridentate ligand in all the ...

Two neutral pentacoordinate mononuclear cadmium(II) complexes of the type [Cd(L)X2] [L = N-(pyridin-2′-yl)benzylidene)-2-(piperidin-1-yl)ethane-1,2-diamine; X = Cl, (1) and X = Br, (2)], one neutral hexacoordinate dinuclear compound [Cd(L)(µ-NCS)NCS]2 (3) and one neutral hexacoordinate coordin...

We synthesized fluorescent Cd nanoclusters (CdNCs) through a protein-directed method, and the synthesis method was utilized for a homogeneous, ultrasensitive, and selective detection of cadmium ion (Cd2+). CdNCs were synthesized using a modified protein-directed method for developing a rapid Cd2...