Aging of cerous carbonate in aqueous solution was investigated.
研究了水溶液中碳酸铈沉淀的陈化过程。
The surface chemical structure of activated carbon fibers (ACF) was modified by cerous nitrate.
利用硝酸铈铵对活性炭纤维进行了化学改性。
The said tombarthite is one of the kinds such as lanthanum, europium nitrate, erbium nitrate, cerous nitrate and neodymium nitrate.
所述稀土是指硝酸镧、硝酸铕、硝酸铒、硝酸亚铈、硝酸钕中的任一种。
Because the oxidation ability of ammonium cerous sulfate was affected by acidity and concentration of solution, we discuss and select their optimization.
因为硫酸铈铵溶液的氧化能力与溶液的酸度和浓度有较大的关系，故讨论了溶液的酸度和浓度的选择。
Methods: the cerous sulfate reducing reaction was used according to the preventive and curative criteria of iodine deficiency drawn up by WHO and ICCIDD.
方法：采用WHO与ICCID制定的《碘缺乏病防治标准与方法》中的硫酸铈法。
Cerium dioxide ultrafine powder is prepared by electrochemical method using composite coating of In-Ru-Ir as anode, cerous nitrate and ammonium nitrate as electrolyte.
采用钛基钌铱铑复合涂层作为阳极，以硝酸铈和硝酸铵作为电解液，电化学法制备二氧化铈超细粉体。
And the cerous methanesulfonate an be reused by simple phase-separation. Cerous methanesulfonate can be used as the catalyst in synthesizing other chloroacetate, the yield is over 98.0%.
反应后甲烷磺酸亚铈经过简单的相分离就可重复使用，用甲烷磺酸亚铈催化合成其它氯乙酸酯，酯化率均在98 0%以上。
And the cerous methanesulfonate an be reused by simple phase-separation. Cerous methanesulfonate can be used as the catalyst in synthesizing other chloroacetate, the yield is over 98.0%.
反应后甲烷磺酸亚铈经过简单的相分离就可重复使用，用甲烷磺酸亚铈催化合成其它氯乙酸酯，酯化率均在98 0%以上。
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