Partition of Pertechnetate Ion in Nitric Acid with Diethyl Ether

Partition of Pertechnetate Ion in Nitric Acid with Diethyl Ether

A procedure for the investigation of pantition of the pertechnetate anion into diethyl ether is given. Since close temperature control was not necessary for the extraction condition, all extractions took place at room temperature. The ether layer was evaporated on a planchet and counted. Less than 1...

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Veröffentlicht in:Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed Anal. Ed, 1962-09, Vol.34 (10), p.1349-1350
1. Verfasser: Attrep, Moses
Format: Artikel
Sprache:eng
Schlagworte:
ACIDITY
ANIONS
CHEMICAL REACTIONS
CHEMISTRY
CONTROL
COUNTERS
DETECTION
DISTRIBUTION
EFFICIENCY
ETHERS
ETHYL RADICALS
EVAPORATION
IONS
NITRIC ACID
OXONIUM RADICALS
PARTITION
PERTECHNETATES
PROTONS
RADIOACTIVITY
SEPARATION PROCESSES
SOLVENT EXTRACTION
TECHNETIUM OXIDES
TEMPERATURE
WATER
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Zusammenfassung:A procedure for the investigation of pantition of the pertechnetate anion into diethyl ether is given. Since close temperature control was not necessary for the extraction condition, all extractions took place at room temperature. The ether layer was evaporated on a planchet and counted. Less than 1 cpm was detected, which indicated a good baek extraction. In the region of 0.0 to 6.0 N HNO/sub 3/ the extraction coefficient is signific antly dependent upon hydrogen ion concentration. Increastng the acidity of the aqueous layer favors protonation of the ether molecule to yield the diethyloxonium ion. In the region of 6.0 to 10.0 N HNO/sub 3/, it appears that maximum protonation was obtained, and the partition of the pertechnetate ion is at a relative maximum. (P.C.H.)
ISSN:0003-2700
1520-6882
DOI:10.1021/ac60190a057