| Wave band, cm−1 | Assigned group |
| 2923.76 | Bound water (H-OH stretch) |
| 2853.32 | Bound water (H-OH stretch) |
| 1743.23 | CO2 CO stretch |
| 1711.42 | Bound water HOH bend |
| 1654.00 | Bound water HOH bend |
| 1456.66 | Carbonate CO stretch |
| 952.51 | Silicate SiO stretch |
| 873.96 | Sulphate SO stretch |
| 551.70 | C-Br stretch |
| 541.78 | C-Br stretch |