Determination of indium in high-purity zinc

Naïm Košaric; G. Leliaert

doi:10.1038/191703a0

Determination of indium in high-purity zinc

Naïm Košaric, G. Leliaert

Research output › peer-review

Abstract

THE activation analysis of 5 parts in 10¹² of indium in zinc has been carried out, using a method of separation investigated by Kosta and Hoste¹. 1-gm. samples of zinc were irradiated in a neutron flux of 8 × 10¹¹ n./cm.² sec. in the BR.I reactor. After irradiation, the samples were dissolved in 10 ml. of 6 N hydrobromic acid with the addition of 3-4 drops of nitric acid (sp. grav. 1.40) in order to accelerate the dissolution. By addition of 5 ml. of 6 N hydrobromic acid to the solution, its concentration was increased to about 4 N. After two extractions with 5 ml. of isopropylether, the organic layer contained all the trivalent indium. Small amounts of zinc-65, which were present in the organic layer, were washed out with 10 ml. of 6 N hydrobromic acid.

Original language	English
Pages (from-to)	703-704
Number of pages	2
Journal	Nature
Volume	191
Issue number	4789
DOIs	https://doi.org/10.1038/191703a0
State	Published - 1961
Externally published	Yes

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10.1038/191703a0

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title = "Determination of indium in high-purity zinc",

abstract = "THE activation analysis of 5 parts in 1012 of indium in zinc has been carried out, using a method of separation investigated by Kosta and Hoste1. 1-gm. samples of zinc were irradiated in a neutron flux of 8 × 1011 n./cm.2 sec. in the BR.I reactor. After irradiation, the samples were dissolved in 10 ml. of 6 N hydrobromic acid with the addition of 3-4 drops of nitric acid (sp. grav. 1.40) in order to accelerate the dissolution. By addition of 5 ml. of 6 N hydrobromic acid to the solution, its concentration was increased to about 4 N. After two extractions with 5 ml. of isopropylether, the organic layer contained all the trivalent indium. Small amounts of zinc-65, which were present in the organic layer, were washed out with 10 ml. of 6 N hydrobromic acid.",

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AU - Košaric, Naïm

AU - Leliaert, G.

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N2 - THE activation analysis of 5 parts in 1012 of indium in zinc has been carried out, using a method of separation investigated by Kosta and Hoste1. 1-gm. samples of zinc were irradiated in a neutron flux of 8 × 1011 n./cm.2 sec. in the BR.I reactor. After irradiation, the samples were dissolved in 10 ml. of 6 N hydrobromic acid with the addition of 3-4 drops of nitric acid (sp. grav. 1.40) in order to accelerate the dissolution. By addition of 5 ml. of 6 N hydrobromic acid to the solution, its concentration was increased to about 4 N. After two extractions with 5 ml. of isopropylether, the organic layer contained all the trivalent indium. Small amounts of zinc-65, which were present in the organic layer, were washed out with 10 ml. of 6 N hydrobromic acid.

AB - THE activation analysis of 5 parts in 1012 of indium in zinc has been carried out, using a method of separation investigated by Kosta and Hoste1. 1-gm. samples of zinc were irradiated in a neutron flux of 8 × 1011 n./cm.2 sec. in the BR.I reactor. After irradiation, the samples were dissolved in 10 ml. of 6 N hydrobromic acid with the addition of 3-4 drops of nitric acid (sp. grav. 1.40) in order to accelerate the dissolution. By addition of 5 ml. of 6 N hydrobromic acid to the solution, its concentration was increased to about 4 N. After two extractions with 5 ml. of isopropylether, the organic layer contained all the trivalent indium. Small amounts of zinc-65, which were present in the organic layer, were washed out with 10 ml. of 6 N hydrobromic acid.

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