Molekula
Copper (I) iodide
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Copper (I) iodide is a crystalline solid used in organic synthesis, catalysis, and semiconductor applications. It is a source of copper and iodide ions in chemical reactions. Beyond the lab, it serves as an iodine source in animal feed additives, an ice-nucleating agent for cloud seeding, and a coating material in cathode-ray tubes. Available in powder form, it has a molecular weight of 190.45 g/mol, a CAS number of 7681-65-4, and should be stored at ambient temperature. It is classified as dangerous. Molekula supplies Copper (I) iodide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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500 g — £77.70 per pack ex VAT · £93.24 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White or light yellow powder |
| Identification | Conforms to reference |
| Loss on Drying | ≤ 1.0% |
| Assay | ≥ 98% |
| Iron (Fe) | ≤750ppm |
| Copper (Cu) | ≥ 32.6% |
| Sulphates (SO4)(2-) | ≤ 0.1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White cubic crystals |
| Melting Point | 606 °C |
| Vapour Pressure | 10 mmHg at 656 °C |
Source: PubChem CID 6432705 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 75252161 |
| CAS Number | 7681-65-4 |
| IUPAC Name | copper(1+) iodide |
| Molecular Formula | CuI |
| Molecular Weight | 190.45 |
| Exact Mass | 189.8341 |
| SMILES | [Cu+].[I-] |
| InChIKey | LSXDOTMGLUJQCM-UHFFFAOYSA-M |
| InChI | InChI=1S/Cu.HI/h;1H/q+1;/p-1 |
| PubChem CID | 6432705 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2827601000 |
| Tariff Code | 2827600090 |
Safety & GHS
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Corrosive
GHS05
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H318 Causes serious eye damage
- H372 Causes damage to organs through prolonged or repeated exposure
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Copper iodide (cui)
- Copper monoiodide
- Copper(1+) iodide
- Copper(l)iodide
- Cuprous iodide
- Cuprum Iodatum
- Hydro-Giene
- iodocopper
- Marshite
- Natural marshite
Frequently asked questions
What is Copper (I) iodide used for?
Copper (I) iodide is primarily used as a catalyst in organic synthesis, particularly in coupling reactions, and as a reagent in materials science for semiconductor applications.
What is the chemical formula and molecular weight of Copper (I) iodide?
The chemical formula is CuI and the molecular weight is 190.45 g/mol.
How should Copper (I) iodide be stored?
It should be stored at ambient temperature, protected from moisture and light to prevent degradation.
What grade of Copper (I) iodide does Molekula supply?
Molekula supplies Copper (I) iodide in high-purity grade suitable for laboratory and specialized industrial applications.
Can Molekula supply Copper (I) iodide in bulk?
Yes, Molekula can supply Copper (I) iodide in bulk quantities—please contact our sales team for volume pricing and availability.
What documentation comes with a Copper (I) iodide order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with regulatory standards.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.