MAGNETIC RESONANCE MEASUREMENTS OF PROTON EXCHANGE IN AQUEOUS UREA.
Abstract
Rates of protolysis of aqueous urea were measured by steady state and spin echo NMR methods, with good agreement between the two techniques. Below about two molar urea, the lifetime of a proton on urea is independent of urea concentration. Protonation occurs at urea nitrogen rather than oxygen. Above about two or three molar urea, formation of aggregated species of urea causes the lifetime of a urea proton to depend on urea concentration. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 02, 1970
- Accession Number
- AD0704162
Entities
People
- E. S. Daniel
- R. L. Vold
- S. O. Chan
Organizations
- University of California, San Diego