Chemical Properties
| Melting point | -1°C |
| Boiling point | 56-60 °C/25 mmHg (lit.) |
| Density | 2.834 g/mL at 25 °C (lit.) |
| Flash point | 38 °C - closed cup |
| storage temp. | 2-8°C |
| solubility | highly sol hydrocarbons and chlorinated solvents; reacts with oxygen- and nitrogen-containing solvents. |
| form | liquid |
| color | colorless |
| Specific Gravity | 2.834 |
| Hydrolytic Sensitivity | 9: reacts extremely rapidly with atmospheric moisture - may be pyrophoric - glove box or sealed system required |
| InChI | InChI=1S/H2I2Si/c1-3-2/h3H2 |
| InChIKey | AIHCVGFMFDEUMO-UHFFFAOYSA-N |
| SMILES | [SiH2](I)I |
Safety Information
| Hazard Codes | C |
| Risk Statements | 10-14-20/21/22-34 |
| Safety Statements | 16-26-27-28-36/37/39-45 |
| RIDADR | UN 3129 4.3/PG 1 |
| WGK Germany | 3 |
| TSCA | No |
| HazardClass | 3.2 |
| PackingGroup | III |
| HS Code | 28129000 |
| Storage Class | 4.3 - Hazardous materials which set free flammable gases upon contact with water |
| Hazard Classifications | Acute Tox. 4 Dermal Acute Tox. 4 Inhalation Acute Tox. 4 Oral Eye Dam. 1 Flam. Liq. 3 Skin Corr. 1B Water-react 1 |