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- [21] EXTRACTION OF NIOBIUM AND TANTALUM BY OCTYLTOLUIDINES FROM HYDROCHLORIC-ACID SOLUTIONS ZHURNAL NEORGANICHESKOI KHIMII, 1976, 21 (05): : 1278 - 1281
- [22] EXTRACTION OF OSMIUM(IV) FROM HYDROCHLORIC-ACID SOLUTIONS BY ALCOHOLS VESTNIK MOSKOVSKOGO UNIVERSITETA SERIYA 2 KHIMIYA, 1978, 19 (02): : 222 - 223
- [23] EXTRACTION OF GALLIUM FROM HYDROCHLORIC-ACID SOLUTIONS WITH DI(2-ETHYLHEXYL) PHOSPHORIC-ACID - DIRECT DETERMINATION OF GALLIUM IN ORGANIC PHASE JOURNAL OF ANALYTICAL CHEMISTRY OF THE USSR, 1974, 29 (06): : 934 - 938
- [24] TRIBUTYL-PHOSPHATE EXTRACTION OF NIOBIUM IN HYDROCHLORIC-ACID SOLUTION BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE PARTIE I-PHYSICOCHIMIE DES SYSTEMES LIQUIDES ELECTROCHIMIE CATALYSE GENIE CHIMIQUE, 1974, (9-10): : 1877 - 1880
- [26] EXTRACTION OF GALLIUM FROM HYDROCHLORIC-ACID SOLUTIONS BY PETROLEUM SULFOXIDES JOURNAL OF APPLIED CHEMISTRY OF THE USSR, 1975, 48 (07): : 1567 - 1570
- [29] SULFOXIDE EXTRACTION OF CHROMIUM(VI) FROM HYDROCHLORIC-ACID MEDIA ZHURNAL NEORGANICHESKOI KHIMII, 1981, 26 (01): : 199 - 204
- [30] ACETOPHENONE EXTRACTION OF ZIRCONIUM THIOCYANATES FROM HYDROCHLORIC-ACID SOLUTIONS ZHURNAL NEORGANICHESKOI KHIMII, 1972, 17 (11): : 3035 - &