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Citation: LIN Mei-Qin, SONG Jin-Hong, TANG Ya-Lin, DONG Zhao-Xia, LI Ming-Yuan, WU Zhao-Liang. Study on the Existing State of Aluminum in Aluminum Citrate Solution[J]. Acta Physico-Chimica Sinica, ;2005, 21(02): 202-204. doi: 10.3866/PKU.WHXB20050218 shu

Study on the Existing State of Aluminum in Aluminum Citrate Solution

1.
Enhanced Oil Recovery Research Center, University of Petroleum, Beijing　102249; Institute of Chemistry, Chinese Academy of Sciences, Beijing　100080

Received Date: 1 July 2004
Available Online: 15 February 2005

The existing state of aluminum in aqueous aluminum citrate(AlCit) solution and the effect of pH value on it are investigated by 27Al NMR, atomic aborbance spetrum and dialysis. The experimental results show that there are two states of Al in AlCit solution, one is in molecular state, and the other is in colloidal state. When the pH value of solution is increased, the amount of the Al in molecular state is decreased, and the amount of the Al in colloidal state is increased gradually.
- Aluminum citrate;27Al nuclear magnetic resonance;Spin-lattice relaxation time;Dialysis
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