GOLD(I) IODIDE
Synonym(s):Gold monoiodide
- CAS NO.：10294-31-2
- Empirical Formula: AuI
- Molecular Weight: 323.87
- MDL number: MFCD00014175
- EINECS: 233-656-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:23:56
What is GOLD(I) IODIDE?
Chemical properties
yellowish to greenish yellow powder(s); decomposes slowly at ordinary temp, rapidly at elevated temp [MER06]
The Uses of GOLD(I) IODIDE
Gold(I) iodide is employed in the synthesis of chemicals.
General Description
AuI can be prepared by adding KI in an acidic solution of HAuCl4.
Purification Methods
It has been prepared by heating gold and iodine in a tube at 120o for 4 months. Since it decomposes to Au and I2 in the presence of UV light and heat, then the main impurity is Au. The salt is therefore purified by heating at 120o with I2 for several weeks. The crystals should be kept dry and in a cool place in the dark. [Weiss & Weiss Z Naturforsch 11B 604 1956.]
Properties of GOLD(I) IODIDE
| Melting point: | 120 °C (dec.)(lit.) |
| Density | 8.25 g/mL at 25 °C(lit.) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | insoluble in H2O; soluble in CN solution |
| form | Powder |
| color | yellowish-green |
| Specific Gravity | 8.25 |
| Water Solubility | Insoluble in water. Soluble in alkali iodide, cyanide solutions. Decomposes in warm acids |
| Sensitive | Moisture Sensitive |
| Solubility Product Constant (Ksp) | pKsp: 22.8 |
| Stability: | store cold |
| CAS DataBase Reference | 10294-31-2(CAS DataBase Reference) |
| EPA Substance Registry System | Gold iodide (AuI) (10294-31-2) |
Safety information for GOLD(I) IODIDE
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. 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 GOLD(I) IODIDE
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