| 不锈钢中磷和铬的联合测定 |
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| 引用本文： | 唐华.不锈钢中磷和铬的联合测定[J].齐齐哈尔大学学报(自然科学版),2009,25(3). |
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| 作者姓名： | 唐华 |
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| 作者单位： | 齐齐哈尔市车城铸造公司,黑龙江,齐齐哈尔,161002 |
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| 摘 要： | 提出一种快速分析不锈钢中磷和铬的联合测定的方法,针对不锈钢中高铬含量的情况,采用王水和高氯酸溶解后,准确控制发烟时间可使磷和铬全部氧化完全.试样溶解后磷的测定采用酸性介质中用抗坏血酸为还原剂的铋磷钼蓝光度法,在波长660 nm处测定其吸光度,铬的测定采用高氯酸氧化亚铁容量法,实现了磷和铬的联合测定.通过研究与应用认为,此法对磷含量在0.005%～0.050%之间,铬含量在10%～35%的之间合金钢、不锈钢皆适用,试验结果满意.
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| 关 键 词： | 不锈钢 磷 铬 测定 |
Combined determination of phosphorus and chromium in stainless steel |
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| TANG Hua.Combined determination of phosphorus and chromium in stainless steel[J].Journal of Qiqihar University(Natural Science Edition),2009,25(3). |
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| Authors: | TANG Hua |
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| Institution: | Qiqihar City Checheng Casting Company;Heilongjiang Qiqihar 161000;China |
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| Abstract: | A method for rapid combined determination of phosphorus and chromium in stainless steel,In allusion to high chromium stainless steel,used aqua regia and dissolved perchlorate,accurate control of time can smoke all the phosphorus and chromium oxide completely.Sample dissolved phosphorus was determined by the ascorbic acid solution used for the reducing agent bismuth phosphorus molybdenum blue method,the wavelength of 660 nm absorption,department determined that chromium perchlorate was determined by the capa... |
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| Keywords: | stainless steel phosphorus chromium determination |
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