化学
铪
锆
萃取(化学)
牙冠(牙科)
液-液萃取
环境化学
无机化学
色谱法
复合材料
材料科学
作者
N. V. Deorkar,S. M. Khopkar
标识
DOI:10.1016/s0003-2670(00)80197-x
摘要
Abstract Zirconium was quantitatively extracted with 2.5 × 10 −2 M dicyclohexyl-18-crown-6 in dichloromethane from 8.5 M hydrochloric acid. It was stripped with 0.5 M hydrochloric acid and was determined spectrophotometrically as its complex with Arsenazo III. Hafnium was not extracted under these conditions, but from the residual aqueous phase it was extracted with 7.0 × 10 −2 M dicyclohexyl-18-crown-6 in dichloromethane from 9.0 M hydrochloric acid. It was stripped with 0.1 M perchloric acid and determined spectrophotometrically at 540 nm as its complex with xylenol orange. The separation of zirconium and hafnium from other metals is also described.
科研通智能强力驱动
Strongly Powered by AbleSci AI