| 粘土中游离氧化铁的分离及其测定 |
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| 引用本文： | 龚琦,韦小玲,尹建华,张信贵,易念平.粘土中游离氧化铁的分离及其测定[J].理化检验(化学分册),2000,36(5):204-205. |
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| 作者姓名： | 龚琦 韦小玲 尹建华 张信贵 易念平 |
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| 作者单位： | 1. 广西大学化学化工学院,南宁,530004
2. 广西大学土木工程学院 |
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| 基金项目： | 国家自然科学基金，广西自然科学基金 |
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| 摘 要： | 研究了盐酸羟胺-草酸-草酸铵体系提取粘土中游离氧化铁及其测量，试验表明，用此体系提取拈土中的游离氧化铁，其测量结果与DCB法一致，而提取及测量所需的时间却较前者短。相对标准偏差RSD≤2．0％。
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| 关 键 词： | 粘土 游离氧化铁 草酸 草酸铵 分离 测定 |
| 修稿时间： | 1999-05-25 |
SEPARATION AND DETERMINATION OF FREE IRON OXIDE IN CLAY |
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| Gong Qi,Wei Xiaoling,Yin Jianhua,Zhang Xingui,Yi Nianping.SEPARATION AND DETERMINATION OF FREE IRON OXIDE IN CLAY[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2000,36(5):204-205. |
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| Authors: | Gong Qi Wei Xiaoling Yin Jianhua Zhang Xingui Yi Nianping |
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| Institution: | Gong Qi
, Wei Xiaoling
,Yin Jianhua
;(College of Chemistry and Chemical Engineering Guangxci University.Nanning 530004);Zhang Xingui
,Yi Nianping
;(College of Civil Engineering Guangxi University) |
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| Abstract: | The extraction of free iron oxide from clay by hydroxylamine hydrochtoride-oxalic acid-ammonum oxalate system and its determination was studied. The results show that the amount of iron oxide extracted by this method agree with those by DEB method, and the color developing times of 1,10-phenanthroline-Fe2+ in the system is shorter than in DCB method. The relative standard deviation is less than or equal to 2.0%. |
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| Keywords: | Clay Free iron oxide Hydroxylamine hydrochloride Oxalic acid Ammonium oxalate |
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