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Separation of C60 and C70 fullerenes in gram quantities by fractional crystallization

✍ Scribed by Zhou Xihuang; Gu Zhennan; Wu Yongqing; Sun Yiliang; Jin Zhaoxia; Xiong Yan; Sun Biyun; Wu Yi; Fu Hua; Wang Jingzun

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
283 KB
Volume
32
Category
Article
ISSN
0008-6223

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✦ Synopsis

simple and inexpensive method for the purification of gram quantities of >99.5% pure C,, and >98% pure C,, by a fractional crystallization process in carbon disulfide or o-xylene is described.This process is based on the finding that C, was enriched in the solid deposit, whereas CT0 was enriched in the mother liquor during crystallization of fuilerenes due to differential solubilities of these two fullerenes, C,, and C&, in these solvents.

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