Study of the extraction of strontium(II) and lead(II) by crown and dithiacrown ethersстатья
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Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.
Авторы:
Abramov A.A. ,
Averina N.V. ,
Iofa B.Z.,
Samoshin V.V. ,
Ivanova N.A.,
Sapozhnikov Yu A.,
Zefirov N.S.
Журнал:
Chemistry of Heterocyclic Compounds
Том:
33
Номер:
8
Год издания:
1997
Издательство:
Kluwer Academic/Plenum Publishers
Местоположение издательства:
United States
Первая страница:
982
Последняя страница:
985
Аннотация:
A study was carried out on the extraction of strontium(II) and lead(II) picrates by chloroform solutions of crown and dithiacrown ethers. The benzene ring substituents in benzodithia-18-crown-6 only slightly affect the extraction of strontium and lead cations and their separation. The introduction of an adamantyl group onto the benzene ring markedly increases the extraction of lead and the separation selectivity of these cations. The use of dithia derivatives of benzo-18-crown-6 is less efficient for the extraction of both strontium and lead, though the selectivity of their separation is almost the same as in the extraction with benzo-18-crown-6. ©1998 Plenum Publishing Corporation.
Добавил в систему:
Зефиров Николай Серафимович