Pressure effects on the spin-lattice relaxation rates of D and 17O nuclei for heavy water molecules in alkali bromide aqueous solutions

✍ Scribed by Koichi Fumino; Akio Shimizu; Yoshihiro Taniguchi

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 553 KB
• Volume: 82
• Category: Article
• ISSN: 0167-7322
• DOI: 10.1016/s0167-7322(99)00100-2

✦ Synopsis

The spin-lattice relaxation rates (R~) of D and 170 nuclei of heavy water (D20) in alkali bromide'(LiBr, NaBr, KBr, CsBr) aqueous solutions were measured in the range of 0.1-300 MPa at 1.0 molkg -~ and 30°C by NMR. The R1 value decreases with pressure up to 300MPa. In this pressure range, the R1/RI* value (R1 ° is R1 of these nuclei for pure water) is in the following order : LiBr>NaBr>I>KBr>CsBr.