Boron triiodide
CAS: 13517-10-7
Category: Inorganic Chemicals
| Purity | Reagent Grade ≥98%, High-Purity Grade ≥99% |
| Molecular Formula | BI3 |
| Molecular Weight | 391.52 |
| Appearance | Crystalline solid, white to dark-colored crystals with metallic luster (melting point approx. 49-51 °C, density approx. 3.35 g/cm³) |
| Packaging | 1 g/ampoule, 5 g/ampoule, 25 g/ampoule, 100 g/ampoule, 500 g/ampoule, or 1 kg/ampoule (sealed under inert atmosphere) |
| Testing Indicators | Appearance — Visual inspection (crystal form and color); Melting point — Capillary melting point determination (GB/T 617); Density — Pycnometer method (GB/T 4472); Purity — Gravimetric/titrimetric analysis of iodine content (GB/T 9738); Identification — FTIR (B-I stretching band) and Raman spectroscopy; Halogen content — Argentometric titration (GB/T 9729); Moisture — Karl Fischer titration (GB/T 6283); Heavy metals — Colorimetric method (GB/T 9735). |
| Storage Notes | Store in a cool (2-8 °C), dry, dark place away from heat and moisture. Keep container tightly sealed and protected under inert gas (nitrogen or argon). Strictly isolate from water and all compounds bearing labile hydrogen. Handle in a fume hood with chemical-resistant gloves and goggles/face shield. In case of spill, absorb with dry inert material; never flush directly with water. |
| Lead Time | 10 days |
Used as a strong Lewis acid and iodinating reagent in organic synthesis. Employed for the cleavage of ethers, esters, silanes and alcohols to form alkyl iodides, as well as for dealkylation/deprotection reactions. Also used as an intermediate in the preparation of other boron-containing compounds and in pharmaceutical, fine-chemical and research applications requiring strong Lewis-acid/iodinating chemistry.