ZIRCONIUM IODIDE
- CAS NO.：13986-26-0
- Empirical Formula: I4Zr
- Molecular Weight: 598.84
- MDL number: MFCD00049641
- EINECS: 237-780-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:20:46
What is ZIRCONIUM IODIDE?
Description
Zirconium(IV) iodide, ZrI4, is the most readily available iodide of zirconium. It is an orange-colored solid that degrades in the presence of water. The compound was once renowned as an intermediate in the purification of zirconium metal. This compound is volatile, subliming as intact tetrahedral ZrI4 molecules.
Chemical properties
orange crystal(s); fumes heavily in air; cub, a=1.179nm [KIR84] [MER06]
The Uses of ZIRCONIUM IODIDE
Used in the van Arkel-de Boer refining process.
Preparation
It is prepared by the direct reaction of powdered zirconium metal and iodine. Pyrolysis of zirconium(IV) iodide gas by contact of hot wire was the first industrial process for the commercial production of pure ductile metallic zirconium.
Structure and conformation
Like most binary metal halides, it has a polymeric structure. The compound exists as a polymer consisting of octahedral Zr(IV) centers, each with a pair of terminal iodide ligands and four doubly bridging iodide ligands. The Zr-I distances are 2.692 (terminal) and 3.030 A? .
Properties of ZIRCONIUM IODIDE
| Melting point: | 499°C |
| Boiling point: | 431°C (estimate) |
| Density | 4.85 |
| storage temp. | under inert gas (nitrogen or Argon) at 2–8 °C |
| solubility | very soluble in H2O |
| form | powder |
| color | Yellow |
| Specific Gravity | 4.914 |
| Water Solubility | Insoluble in water. |
| Sensitive | Air & Moisture Sensitive |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| Merck | 14,10178 |
| Exposure limits | ACGIH: TWA 5 mg/m3; STEL 10 mg/m3 NIOSH: IDLH 25 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3 |
| CAS DataBase Reference | 13986-26-0(CAS DataBase Reference) |
| EPA Substance Registry System | Zirconium iodide (ZrI4) (13986-26-0) |
Safety information for ZIRCONIUM IODIDE
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P363:Wash contaminated clothing before reuse. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for ZIRCONIUM IODIDE
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