Strontium carbonate is the most commonly used red flame colourant as it is insoluble and relatively unreactive. The strontium ion is not the radioactive isotope and so the material is perfectly safe from a radioactive perspective.
| Sieve residue: | >45 microns max. 1% |
| SrCO3 / BaCO3 HCI-Titration: | 98.0% |
| Colour: | White |
| Odour: | Odourless |
| Humidity: | max. 0.10% |
| Tap density: | 0.90 – 1.30 kg/l |
| Formula: | SrCO3 |
| Total S as SO3: | max. 0.40% |
| BaO: | max. 1.9% |