建立了一种氧化蜡过氧化价的快速测定方法,考察了溶剂、测定温度、反应时间对测定结果的影响。
This paper established a fast measuring way of peroxide value of oxidized wax and the effect of solvent, measuring temperature, reaction time on the measuring results were discussed.
研究人员发现,铬元素的氧化物由六价铬转变为三价铬,这与画作中的铬黄色日趋变暗有关。
The researchers found that a change in the oxidation state of the element chromium (from chromium 6 to chromium 3) was linked to the darkening of chrome yellow paint.
三氯化铁溶液不断地冲刷不锈钢板的表面,溶液中的三价铁离子快速氧化不锈钢板,不锈钢板就被蚀刻下去了。
Ferric chloride solution constantly scouring the surface of stainless steel plate, the solution of ferric ion rapidly oxidized stainless steel plate, stainless steel plate was etched on the go.
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