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Citation: ZHAO Yan, ZHANG Bing-Ru, LI Xia, LI Feng-Ting. Poly(aluminum chloride) and Its Coagulation Effect[J]. Chinese Journal of Applied Chemistry, ;2004, 21(2): 212-214. shu

Poly(aluminum chloride) and Its Coagulation Effect

1.
School of Environmental Science & Engineering, Tongji University, Shanghai 200092

Corresponding author: LI Feng-Ting,
Received Date: 24 June 2003
Available Online: 27 November 2003

Poly(aluminum chloride)(PAC) solutions of different basicity were prepared from pure aluminum foil and hydrochloric acid. Aluminum species were investigated by ²⁷Al NMR spectroscopy and the tridecameric polycation Al₁₃ was detected. With the increase of PAC's basicity, the molar ratio of Al₁₃ to Al_m in PAC increases. The jar tests with kaolin water and water from Huangpu River at the same PACs dosage showed that the more basicity and content of Al₁₃, the more effective the coagulation effect on water with middle-high turbidity, while only less effect of the basicity was observed on water with low turbidity.
- poly aluminum chloride,
- basicity,
- Al₁₃,
- ²⁷Al NMR,
- coagulation
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