Effect of iron ion in the thermal decomposition of 50 mass % hydroxylamine/water solutions
Effect of iron ion in the thermal decomposition of 50 mass % hydroxylamine/water solutions
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DOI：
10.1021/je030121p
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发表时间：
2003-09-01
期刊：
影响因子：
--
通讯作者：
Koseki, H
中科院分区：
文献类型：
--
作者：
Cisneros, LO;Rogers, WJ;Koseki, H
本文研究了50%质量的羟胺/水溶液（HA）与三氧化铁、亚铁离子和三氧化铁离子形式的铁接触时的热分解行为。如果HA与铁离子（Fe3+或Fe2+）接触，即使在低浓度和环境温度下，它也会发生剧烈反应，产生气泡系统，几乎没有汽液分离。在很短的时间内，释放出大量的能量，约为4.0千焦/克，导致反应质量沸腾。无铁离子羟胺的反应热为3.78 kJ/g。铁锈引起非均相铁催化反应，不像均相铁催化那样剧烈，即使在室温下加入0.0004 mol % （10 ppm）的铁离子也会在绝热条件下触发羟胺的完全分解。
This paper presents thermal decomposition behavior of 50 mass % hydroxylamine/water solutions (HA) when contacted with iron in the form of ferric oxide, ferrous ion, and ferric ion. If HA comes in contact with iron ion (Fe3+ or Fe2+), even in small concentrations and at ambient temperatures, it reacts violently to produce a bubbling system with very little vapor-liquid disengagement. A great amount of energy, similar to4.0 kJ/g, is released, in a very short period of time, which results in boiling of the reaction mass. The measured heat of reaction for hydroxylamine without iron ion was 3.78 kJ/g. Rust causes heterogeneous iron catalysis of the reaction, which is not as violent as homogeneous iron catalysis, where even 0.0004 mol % (10 ppm) of iron ion added at room temperature will under adiabatic conditions trigger the complete decomposition of hydroxylamine.