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Study on the crystallization metastable zone of calcium nitrate
Author(s): 
Pages: 19-20,36
Year: Issue:  5
Journal: Phosphate & Compound Fertilizer

Keyword:  calcium nitratemetastable zone width (MZW)impuritytemperaturecrystal morphology;
Abstract: 溶液的介稳区宽度是结晶过程的基础研究之一。考察Fe3+、Al3+、Mg2+杂质在不同浓度下对硝酸钙结晶介稳区宽度及结晶形态的影响,以及饱和溶液温度对介稳区宽度的影响。结果表明:3种杂质对硝酸钙的结晶形态未产生影响;随着各杂质离子浓度的升高,硝酸钙介稳区宽度变宽;随着饱和溶液温度升高,其介稳区宽度先变窄后变宽。介稳区宽度对指导硝酸钙结晶过程有参考价值。
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