| 光度法快速测定水泥中Fe2O3 |
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| 引用本文： | 黄清华,钟国秀,彭绎霏,高琳. 光度法快速测定水泥中Fe2O3[J]. 中国材料科技与设备, 2012, 0(3): 43-44 |
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| 作者姓名： | 黄清华 钟国秀 彭绎霏 高琳 |
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| 作者单位： | [1]湖北省建材研究设计院,湖北武汉430071 [2]湖北省机电研究设计院,湖北武汉430070 [3]武汉铁路工程建设监理有限责任公司,湖北武汉430070 [4]江汉大学化学与环境工程学院,湖北武汉430056 |
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| 基金项目： | 武汉市教育局武汉市属高校科研课题（重点项目：2009K006）;湖北省教育厅科学技术研究项目（B20114507） |
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| 摘 要： | 在pH2左右的条件下，磺基水扬酸能与三价铁形成红紫色稳定的络合物，最大吸收波长为510nm，表观摩尔吸光系数为1．87×10^3L·mol^-1·cm^-1。本文研究了显色体系，并确定了反应的最佳条件，提出了用磺基水扬酸分光光度法测定水泥中三氧化二铁的方法，测定结果与认定值相符，其相对标准偏差（RSD）小于2％。
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| 关 键 词： | 磺基水扬酸 Fe2O3 分光光度法 水泥 |
Quickly Determination of Fe2O3 in Cement by Spectrophotometry |
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| HUANGQing--hua,ZHONGGuo--xiu,PENG Yi-- fei,GAO Lin. Quickly Determination of Fe2O3 in Cement by Spectrophotometry[J]. Chinese Materials Science Technology & Equipment, 2012, 0(3): 43-44 |
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| Authors: | HUANGQing--hua ZHONGGuo--xiu PENG Yi-- fei GAO Lin |
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| Affiliation: | 1. Hubei Resereh＆ Designing Institute of Building Material, Hubei, Wuhan, 430071, China; 2. Hubei Reserch ＆ Designing Institute of Mechanical Electronic Engineering, Hubei, Wuhan, 430070, China; 3. Wuhan Railway Engineering Construction Supervision Co. , Ltd. , Hubei, Wuhan, 43007, China; 4. School of Chemistry and Environmental Engineering, Jianghan University, Hubei, Wuhan, 430056, China) |
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| Abstract: | In the conditions around pH 2, Fe^3＋ reacts with sulphosalicylic acid to form a red and purple complex which exhibits an absorption maximum at 510 nm with a apparent molar absorptivity of 1.87×10^3L·mol^-1·cm^-1. This paper studies the colour--display system, and the optimal reaction conditions are established. In the application of this method to the direct determination of Fe^3＋ in cement , the results are constent with the certified. The RSD （n=5） is not more than 2%. |
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| Keywords: | Sulphosalicylic acid Fee O3 Spectrophotometry Cement |
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