CO2 tea laser-induced photochemical enrichment of boron isotopes

✍ Scribed by S.M. Freund; J.J. Ritter

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 765 KB
• Volume: 32
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(75)85118-9

✦ Synopsis

Mixtures of BCl3 and HzS are irradiated with 10.55 pm radiation (P( 16) line of the 001-100 band of COz) from a TEA Iaser. After several hours of irradiation it is found that the maximum "B to "B ratio ofrecovered gaseouk boron contain- ing materiall(~rimarily unreacted BClg) is 0.413 i 0.004. The corresponding ratio of the EQ starting material is 0.242 c C.002. The B concentm,tion has thereiore been increased from 19.5% to 29.2%. Further. by irradiating similar mixtures with 10.18 pm radiation (R(3Z)) line of the same CO2 vibrational band) this ratio changes to 0.169 2 O.GO2, the "E p&ncentration being lowered to 14.4%. All experiments are performed in a small static systein and chemical procedures for recovering milligram quantities of BCla selectively enriched in either isotope are described.