Iodine
Elemental Iodine
- CAS
- 7553-56-2
- EC
- 231-442-4
- Sectors
- Pharma & Healthcare, Animal Nutrition, Electronics & Solar PV
Iodine (CAS 7553-56-2) is a dark grey to purple crystalline element obtained from natural brine, caliche ore and iodine rich minerals, supplied as a solid with a metallic sheen and a characteristic vapour at room temperature, and used in antiseptic formulations, contrast media, feed enrichment and electronics. Industrial users value iodine for its strong reactivity, broad functionality and reliability in chemical, pharmaceutical and nutrition production.
Typical Properties
| Molecular formula | I2 |
|---|---|
| Molecular weight | 253.81 g/mol |
| Appearance | Grey to purple solid |
| Form | particles (round) |
| Color | Red-brown |
| Odor | Sharp, characteristic odor |
| Melting point | 113.7 °C |
| Boiling point | 184.4 °C @ Press: 800 Torr |
| Density | 4.9 g/cm³ |
| Water solubility | 0.3 g/L (20 °C) |
| Flash point | <10°C |
| pH | 5.4 (H2O)(saturated solution) |
| GHS signal word | Danger · Acute toxicity, Irritant / harmful, Health hazard, Environmental hazard |
| HS code | 28012000 |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Iodine
Applications
Used in pharmaceuticals for antiseptic formulations, contrast media and active ingredient synthesis. Applied in nutrition and feed products for iodine enrichment. Essential in the manufacture of iodides, biocides, catalysts and specialty chemicals. Used in electronics and polarising films, in dye and pigment intermediates, in rubber and polymer processing and in analytical laboratories for titration and testing.
Safety & Risks
Irritant and corrosive material that can affect skin, eyes and respiratory system. Vapour may cause headaches or irritation. Handle with PPE in well ventilated areas. Store away from reducing agents and strong acids.
Packaging
Supplied in 25 kilogram steel drums, glass bottles or HDPE containers with inner liners. Store in cool, dry and dark conditions to limit sublimation and preserve purity.