Table 6.
Isotopic abundance ratios of bromine from various commercial bromine and bromine source materials relative to reference sample
| Sample | Source | Average observed ratio of ratios a |
|---|---|---|
| Brine, Searles Lake | American Potash & Chemical Corp | 0.9988 |
| Brine | Arkansas Chemical Co | .9996 |
| Bromine | Arkansas Chemical Co | .9995 |
| Monroe brine | Dow Chemical Co | .9994 |
| Midland bromine, purified | Dow Chemical Co | .9998 |
| Freeport bromine, purified | Dow Chemical Co | .9995 |
| See Water | Ethyl-Dow Chemical Co | .9992 |
| Bittern | F. M. C. Corp | .9994 |
| Bromine | F. M. C. Corp | .9990 |
| Brine | Great Lakes Chemical Corp | .9999 |
| Brine | Great Lakes Chemical Corp | .9998 |
| Brine | Great Lakes Chemical Corp | 1.0005 |
| Brine | Great Lakes Chemical Corp | 0. 9998 |
| Bromine | Great Lakes Chemical Corp | .9999 |
| Bromine | Great Lakes Chemical Corp | .9998 |
| Bromine | Great Lakes Chemical Corp | 1.0002 |
| Bromine | Great Lakes Chemical Corp | 0. 9998 |
| Brine, St. Louis production | M ichigan Chemical Corp | 1. 0002 |
| Bromine, St. Louis production | Michigan Chemical Corp | 1.0000 |
| Bromine, Manistic production_ | Michigan Chemical Corp | 0. 9994 |
| Bromine, El Dorado production | Michigan Chemical Corp | .9992 |
a
(Br79/Br81) sample/(Br79/Br81) reference. The 95 percent confidence limit is ±0.0012.