| 硅钙合金中硅钙联合测定 |
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| 引用本文： | 雷利珑,沈九凤.硅钙合金中硅钙联合测定[J].铁合金,2009,40(3):47-48. |
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| 作者姓名： | 雷利珑 沈九凤 |
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| 作者单位： | 广东韶铸集团有限公司,韶关,中国,512031 |
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| 摘 要： | 试样用NaOH、Na2O3混合熔剂熔融，用稀盐酸浸出，在硫酸介质中，用硅钼蓝光度法测定硅，用氨水沉淀分离铁、铝等杂质，用EDTA容量法测定钙。该方法用于硅钙合金中硅钙联合测定，方法简便，稳定。
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| 关 键 词： | 熔融 分光光度法 EDTA |
DETERMINATION OF SILICON AND CALCIUM IN SILICON-CALCIUM ALLOY |
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| Lei Lilong,Shen Jiufeng.DETERMINATION OF SILICON AND CALCIUM IN SILICON-CALCIUM ALLOY[J].Ferro-alloys,2009,40(3):47-48. |
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| Authors: | Lei Lilong Shen Jiufeng |
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| Affiliation: | Lei Lilong Shen Jiufeng (Test center, Guangdong Shaoguan Foundry and Forging Group Co., Ltd., Shaoguan 512031, China) |
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| Abstract: | The sample was melted in NaOH and Na202 mixture , melt was dissolved in hydrochloric acid. In vitriol medium, silicon was determind by spectrophotometic method; iron, aluminium and other elements were separated from solution by deposited in NH3 · H2O-NH4Cl, calcium was determinded by EDTA titrimetry. The method was simple and stabilization. |
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| Keywords: | EDTA |
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