Calorimetric behaviors of hydroxylamine and its salts caused by Fe(III)

A hydroxylamine electrochemical sensor based on electrodeposition of porous ZnO nanofilms onto carbon nanotubes films modified electrode

“…Although it is a well-known mutagen, moderately toxic and harmful to human, animals, and even plants [3], which has been known to cause both reversible and irreversible physiological changes [4], it is available commercially and frequently used industrially widely in pharmaceutical intermediates and final drug substances synthesis, nuclear fuel reprocessing and the manufacturing of semiconductors [5]. In recent years, chemists became aware of the potentials of hydroxylamine as a result of two major accidents, one occurred in the USA in February 1999, which killed five people, and the other occurred in Japan in June 2000, which killed four people [6,7].…”

Influence of deteriorated solvent on induction period of Grignard reagent formation

“…The features of a SuperCRC and a detailed experimental procedure have been described previously [6,[19][20][21][22].…”

Calorimetric study on the decomposition of hydroxylamine in the presence of transition metals

“…Its features were described in a previous report [5]. All experiments used 1 ml of HA water solutions and water and 0.1 g of metal ion solution.…”

“…In this study, the calorimetric behaviors of HA, hydroxylamine chloride (HAC1), and hydroxylamine nitrate (HAN) caused by the Fe(III) ion were studied, and Fe(III) was found to trigger an exothermic reaction, especially in HA [5]. The maximum heat flow reached 434 mW in HA, 46 mW in HACl, and 21 mW in HAN.…”

“…They are in the highest or intermediate oxidation states, which allows them to act as oxidizers. The calorimetric behaviors were monitored using a small-scaled reaction calorimeter, SuperCRC, as described in a previous report [5]. Moreover, UV-vis absorption spectra were collected before and after the reactions in order to follow the redox reactions.…”