1, the reagents and equipment 0.05044 mole / liter of potassium hydroxide (KOH) in distilled water standard solution of 95% ethanol 0.1% phenolphthalein (color indicator) 2} a castor oil, y1 C, I 'd' a 'U9 y % ^ Buret Buret basic analytical balance bracket pipette glass rod cylinder Guangzhou Yang Qing Chemical Co., Ltd. Distribution of propylene glycol, glycerin, triethanolamine, AES, AOS variety, reasonable prices. Guangzhou Yang Qing Chemical Co., strength level of castor oil manufacturers, credit, keep the contract, to ensure product quality, variety principles of operating characteristics and puerile castor Guangzhou level, won the trust of our customers. Main: India castor oil refinery level, Inner Mongolia, castor oil refinery level Yang Qing Chemical Co., Ltd., Guangzhou distribution of propylene glycol, glycerin, triethanolamine, AES, AOS variety, reasonable prices. Guangzhou Yang Qing Chemical Co., strength, credit, keep the contract, to ensure product quality level of castor oil refining, variety principles of operating characteristics and puerile, and win the trust of our customers. Main: India castor oil refinery level, Inner Mongolia, castor oil refining new technology level of product quality and product yield product I KBr pellets on Mattson Alpha spectrum obtained by Fourier transform infrared spectrophotometer and sebacic acid IR spectra identical; with PE-2400CHN elemental analyzer, with the results consistent with the percentage of the data elements of analytically pure. A castor oil prices, Yang Qing Chemical (certified), a castor oil provided by the Guangzhou Chemical Co., Yang Qing. Guangzhou Yang Qing Chemical Co. (www.gzyangqing.com) (www.gzyangqing.com) is Guangzhou, Chemical Product Agents leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In Jan-Chemical leadership with the staff warmly welcome all inquiries negotiations to create Jan-Chemical a better future.