Kumasaki Mieko
National Institute of Industrial Safety, 1-4-6 Umezono Kiyose, Tokyo 204-0024, Japan.
J Hazard Mater. 2004 Nov 11;115(1-3):57-62. doi: 10.1016/j.jhazmat.2004.06.020.
Hydroxylamine (HA), hydroxylamine chloride (HAC1), and hydroxylamine nitrate (HAN) were each mixed with aqueous solutions of Cr3+, Cr6+, Mn7+, Co2+, Co3+, and Cu2+, and their heat flow profiles were monitored by a small-scaled reaction calorimeter, SuperCRC. These mixing tests demonstrated that HA was less reactive than HACl and HAN with Mn7+ and Cr6+. Their UV-vis spectra confirmed that the substrates reacted when Mn7+ and Cr6+ were reduced. HA was more reactive with Cu2+ than HAC1 and HAN and exhibited the highest reactivity among the three substrates with regard to metals in the intermediate oxidation states: Cr3+, Co3+, and Co2+. During the reaction of HA and Co3+, an induction period was observed. All exothermic reactions were accompanied by precipitation or a change in the UV-vis spectra.
将羟胺（HA）、氯化羟胺（HAC1）和硝酸羟胺（HAN）分别与Cr3+、Cr6+、Mn7+、Co2+、Co3+和Cu2+的水溶液混合，并通过小型反应量热仪SuperCRC监测它们的热流曲线。这些混合试验表明，HA与Mn7+和Cr6+的反应活性低于HACl和HAN。它们的紫外可见光谱证实，当Mn7+和Cr6+被还原时，底物发生了反应。HA与Cu2+的反应活性高于HAC1和HAN，并且在与中间氧化态金属（Cr3+、Co3+和Co2+）的三种底物中表现出最高的反应活性。在HA与Co3+的反应过程中，观察到一个诱导期。所有放热反应都伴随着沉淀或紫外可见光谱的变化。
