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Citation: Jiang Guangfeng, Su Qiang. THE PHOTOCHEMISTRY OF RARE EARTHS PHOTOOXIDATION OF Tb³⁺ IN KIO₄-KOH MEDIUM[J]. Chinese Journal of Applied Chemistry, ;1988, 5(4): 29-32. shu

THE PHOTOCHEMISTRY OF RARE EARTHS PHOTOOXIDATION OF Tb³⁺ IN KIO₄-KOH MEDIUM

1.
Changchun Institute of Applied Chemistry, Academia Sinica

Received Date: 12 March 1987
Available Online: 11 May 1987
Fund Project:

The photooxidation of Tb³⁺ in KIO₄-KOH solution is reported in this paper.The soluble complex formed in this system was irradiated by high pressure mercury lamp (366nm). The influences of the concentration of KIO₄,KOH and Tb³⁺,the time and area of exposure and the light intensity on the amount of Tb⁴⁺ formed were investigated. The preferable concentration of KOH is>0.3M,and that of KIO₄ is two orders higher than the initial concentration of Tb³⁺. The soluble complex ion of Tb⁴⁺ formed is red-brown and fairly stable. The maximum of its absorption band is at about 420nm.
- Terbium ion,
- Photooxidation,
- Photochemistry of rare-earth elements
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THE PHOTOCHEMISTRY OF RARE EARTHS PHOTOOXIDATION OF Tb³⁺ IN KIO₄-KOH MEDIUM