Technical aspects
Tableted salt is a white, fine-crystalline product with a neutral odour and salty taste. It is characterised by a high sodium chloride content, low moisture content and appropriate granulation, which facilitates its use and storage.
| Parameter | Value |
|---|---|
| Appearance | White, fine-crystalline powder |
| Taste | Salty |
| Odour | Odourless |
| NaCl content | 99.0 – 100.5% |
| Anti-caking agent (Na₄Fe(CN)₆ – E535) | ≤ 10 milligrams per kilogram |
| pH of 5% solution | 5.5 – 8.5 |
| pH of 1% solution | 5.0 – 8.0 |
| Arsenic (As) | ≤ 0.5 mg/kg |
| Cadmium (Cd) | ≤ 0.5 mg/kg |
| Mercury (Hg) | ≤ 0.1 milligrammes per kilogramme |
| Lead (Pb) | ≤ 2 milligrammes per kilogramme |
| Calcium (Ca) | ≤ 50 milligrams per kilogram |
| Iron (Fe) | ≤ 2 milligrams per kilogram |
| Sulphates (SO₄) | ≤ 0.04% |
| Alkalinity (as Na₂CO₃) | ≤ 0.05% |
| Loss on drying | ≤ 0.5% |
| Substances insoluble in H₂O | ≤ 0.05% |
| Total number of microorganisms | ≤ 5000 cfu/g |
| Particle distribution | > 0.63 mm ≤ 5%; > 0.2 mm ≥ 90%; < 0.063 mm ≤ 5% |
