The behaviour of iodine towards solutions of barium chloride, bromide, and iodide is similar to that of the corresponding calcium and strontium compounds. The following solubility data have been obtained: -
| Solvent | Water | 10 per cent, solutions of | | BaCl2 | BaBr2 | BaI2 | | Grams iodine per 100 grams solvent. | 0.0142 | 0.067 | 0.231 | 6.541 | | Temperature, °C. | Ordinary temp. | 18.5 | 13.5 | 13.5 | |