Determination of the dissociation constants of polyepoxysuccinic acid

ZHANG Lihua1, ZHU Zhiliang2, QIU Yanling2, ZHANG Ronghua2, ZHAO Jianfu2

PDF(85 KB)
PDF(85 KB)
Front. Environ. Sci. Eng. ›› 2008, Vol. 2 ›› Issue (4) : 505-508. DOI: 10.1007/s11783-008-0077-x

Determination of the dissociation constants of polyepoxysuccinic acid

  • ZHANG Lihua1, ZHU Zhiliang2, QIU Yanling2, ZHANG Ronghua2, ZHAO Jianfu2
Author information +
History +

Abstract

The dissociation constants of polyepoxysuccinic acid (PESA) were investigated in this study. Based on the potentiometric titration and the BEST program, the dissociation constants of PESA were determined. Considering the complexity of the dissociation of PESA in aqueous solution, several models were constructed to simulate the dissociation process of PESA. By comparison, the dissociation constants of PESA were obtained with model 4. The species distribution of PESA in aqueous solution as a function of pH was also presented according to the experimental and calculation results. It showed that the H2L model with five basic structure units to describe the dissociation of PESA was reasonable, and the relevant constants had less error and better matching between the experimental and calculation data. The corresponding values of pKai were 4.68 and 4.92, respectively, for H2L at 35°C with ionic strength of 0.1 mol/L.

Cite this article

Download citation ▾
ZHANG Lihua, ZHU Zhiliang, QIU Yanling, ZHANG Ronghua, ZHAO Jianfu. Determination of the dissociation constants of polyepoxysuccinic acid. Front.Environ.Sci.Eng., 2008, 2(4): 505‒508 https://doi.org/10.1007/s11783-008-0077-x

References

1. Wei G, Xu Y N, Xiong R C . Study on biodegradability of inhibitor. Journal of Beijing University of Chemical Technology, 2001, 28(1): 59–62 (in Chinese)
2. Bush R D, Heinzman S W . Ether hydroxypolycarboxylatedetergency builders. US Patent, 4 654 159, 1987
3. Xiong R C, Wei G, Zhou D, Zhao X, Yang J, Xu B, Dong X L . Synthesis of green scaleinhibition polyepoxysuccinic acid. IndustrialWater Treatment, 1999, 19(3): 11–13 (in Chinese)
4. Fuknmoto Y, Tangiuchi T . Water treating agents forprevention of metal corrosion and scale generation. JP Patent, 04 166 298, 1991
5. Kesser S M . Method of inhibiting corrosion in aqueous systems. US Patent, 5 256 332, 1993
6. Wang F Y, Lu Z F, Dong W, Xia M Z, Lei W . Synthesis and scale-inhibiting property of polyepoxysuccinicsodium. Chinese Journal of Applied Chemistry, 2001, 18(9): 746–748 (in Chinese)
7. Xiong R C, Zhou Q, Wei G . Corrosion inhibirion and synergistic effect of greenscale inhibtor polyepoxysuccinic acid. Journal of Chemical Industry and Engineering (China), 2003, 54(9): 1323–1325 (in Chinese)
8. Song C H, Wei G, Xiong R C . Dispersion effect of polyepoxysuccinic acid on nano calciumcarbonate. Journal of Beijing Universityof Chemical Technology, 2007, 34(4): 405–408 (in Chinese)
9. Deluchat V, Bollinger J, Serpaud B, Caullet C . Divalentcations speciation with the three phosphonate ligands in the pH-rangeof natural waters. Talanta, 1997, 44(5): 897–907. doi:10.1016/S0039-9140(96)02136-4
10. Zhu Z L, Liang X M, Zhang R H, Zhang H, Qiu Y L . Determination of stability constantsof PASP complexes with Ca2+ and Mg2+ in aqueous solution by pH potentiometric titration. Chinese Journal of Applied Chemistry, 2006, 23(4): 366–369 (in Chinese)
11. Zhu Z L, Deng S Q, Ni Y M . Study on the coordination chemistry of PBTCA with divalentcations (Cu, Zn, Cd, Ni)in aqueous solution. Industrial Water Treatment, 2002, 22(1): 23–25 (in Chinese)
12. Lee W, Malcolm B H, Ian D R . Complex formation between polyelectrolytes in diluteaqueous solution. Polymer, 1997, 38(6): 1373–1380. doi:10.1016/S0032-3861(96)00650-7
13. Zhang L H, Zhu Z L, Zhang H, Qiu Y L, Zhao J F . Extraction of Pb from sewage sludge withPESA. Environmental Science, 2008, 29(1): 158-163 (in Chinese)
14. Motekaitis R J, Martell A E . BEST-A new program for rigorouscalculation of equilibrium parameters of complex multicomponent system. Canadian Journal of Chemistry, 1982, 60: 2403–2409. doi:10.1139/v82-347
15. Zhu Z L, Liang X M, Zhang R H . Determination of the dissociation constants of polyasparticacid. Chinese Journal of Analytical Chemistry, 2005, 33(12): 1722–1724 (in Chinese)
AI Summary AI Mindmap
PDF(85 KB)

Accesses

Citations

Detail

Sections
Recommended

/