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Citation: LI Hui, LU Fusui, WANG Huying, ZHAI Lili, LI Xiuli. Physical Stability of Ametryne Suspension Concentrate[J]. Chinese Journal of Applied Chemistry, ;2012, 29(3): 327-331. doi: 10.3724/SP.J.1095.2012.00158 shu

Physical Stability of Ametryne Suspension Concentrate

1.
College of Chemistry and Materials Science, Shandong Agricultural University, Tai'an 271018, China

Corresponding author: LU Fusui,
Received Date: 18 April 2011
Available Online: 18 July 2011
Fund Project: 山东省自然科学基金资助项目(ZR2009DM032) (ZR2009DM032)

Effects of dispersants and mass fraction on the physical stability of ametryne suspension concentrate were studied by the average particle size measurement and morphology characterization.The results showed that maleic rosin-polyoxypropylene-polyoxyethylene ether sulfonate(SC-3) formed double-layer adsorption on the surface layer of pesticide,resulting in two-layer static shield system.This system could effectively prevent the particles and water from contacting with each other,inhibiting particle agglomeration and crystal growth by Ostwald ripening.The average particle size and the particle morphology changed little after heat storage due to the restraint of crystal growth.The best physical stability was achieved when the dosage of SC-3 was over 4%.
- ametryne,
- suspension concentrate,
- average particle size,
- Ostwald ripening,
- stability
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