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| 重量法测定缩合磷酸铝中三聚磷酸铝含量 | |
| 引用本文： | 李原,熊德元,莫炳荣,胡容平. 重量法测定缩合磷酸铝中三聚磷酸铝含量[J]. 应用化工, 2011, 40(8): 1343-1345 |
| 作者姓名： | 李原 熊德元 莫炳荣 胡容平 |
| 作者单位： | 1. 广西大学化学化工学院,广西 南宁,530004 2. 广西大学化学化工学院,广西 南宁 530004;广西化工研究院,广西 南宁 530001 3. 广西化工研究院,广西 南宁,530001 |
| 基金项目： | 广西科学基金资助(桂科青0991049) |
| 摘 要： | 基于重量法,以助溶剂TP溶解缩合磷酸铝,氯化-二氯双(乙二胺)合钴为沉淀剂,考察了样品加入量,溶解时间及沉淀反应时间对测定结果的影响。结果表明,取样1 g,溶解时间2 h,沉淀反应时间15 m in,测定结果的相对标准偏差RSD=0.39%,与热失重仪器分析法(含量测定)测定结果的相对误差为0.23%,该测定方法简捷,具有实用性。 |
| 关 键 词： | 缩合磷酸铝 三聚磷酸铝 重量法 |
Determination of aluminum tripolyphosphate in the condensation of aluminum phosphate by weight method |
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| LI Yuan,XIONG De-yuan,MO Bing-rong,HU Rong-ping. Determination of aluminum tripolyphosphate in the condensation of aluminum phosphate by weight method[J]. Applied chemical industry, 2011, 40(8): 1343-1345 | |
| Authors: | LI Yuan XIONG De-yuan MO Bing-rong HU Rong-ping |
| Affiliation: | LI Yuan1,XIONG De-yuan1,MO Bing-rong1,2,HU Rong-ping2 (1.School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China,2.Guangxi Research Institute of Chemical Industry,Nanning 530001,China) |
| Abstract: | Based on the weight method,sodium phosphate solution was used to dissolve condensation of aluminum phosphate with[Co(en)2Cl2]Cl as precipitation agent.The effects of amount of the sample,dissolution time and precipitation time on determination results were studied.The results showed that relative standard deviation of the determination was 0.39% and relative error of TGA instrumental analysis was 0.23% when amount of the sample was 1 g,dissolution time was 2 h,and precipitation reaction time was 15 min.This... |
| Keywords: | condensation of aluminum phosphate aluminum tripolyphosphate method of weight |
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