Phosphate/bromide exchange studies on Amberlite IRA‐400
Phosphate/bromide exchange studies on Amberlite IRA‐400
复制标题
Amberlite IRA-400 上的磷酸盐/溴化物交换研究
DOI：
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发表时间：
1989
期刊：
影响因子：
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通讯作者：
Samad Yar Hussain
中科院分区：
文献类型：
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作者：
S. Mustafa;Samad Yar Hussain
摘要在25 ° C下，研究了两种不同初始浓度范围（0.161 - 0.807 mmol. L-1，3.874 - 6.134 mmol. L-1）下，磷酸盐在强碱性阴离子交换剂Amberlite IRA-400（Br-型）上的吸附随pH（3 - 11）的变化。释放的溴/吸附的磷酸盐的比率随着pH的增加而增加，并且随着溶液浓度的增加而减小。这表明磷酸盐吸附最初以HPO2 - 4形式发生，然后是H2PO-4。数据用修正的朗缪尔方程和质量定律方程解释。
Abstract Phosphate sorption on the strong basic anion exchanger Amberlite IRA‐400(Br‐form)is studied as a function of pH(3–11)at two different initial concentration ranges (0.161–0.807 mmol.L‐1, 3.874–6.134 amol.L‐1)at 25°C. The ratio of bromide released/ phosphate sorbed increases with the increase in pH and decreases with the increase in the concentration of the solution. It is suggested that phosphate sorption takes place initially as HPO2‐ 4 followed by H2PO‐ 4. The data is exPlained with the help of modified Langmuir and mass law action equations.