Molekula
Mercury (II) iodide red
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
Mercury(II) iodide red is a toxic inorganic compound used in research and specialized chemical applications. Its documented applications include preparing Nessler's reagent for chemical analysis, fabricating X-ray, gamma-ray and other photodetectors, and intensifying detail in photography. It appears as a red crystalline solid and is employed in semiconductor and optoelectronic materials. Available in powder form with a molecular weight of 454.3989 g/mol, it has a CAS number of 7774-29-0 and should be stored at ambient temperature. It is classified as dangerous due to its toxicity. Molekula supplies Mercury(II) iodide red 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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25 g — £41.00 per pack ex VAT · £49.20 inc. VAT
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100 g — £85.00 per pack ex VAT · £102.00 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 | Orange to Dark Red powder |
| Melting Point | 259°C |
| Storage Temperature | +20 ° C |
| Assay | 99.0% min |
| Sensitivity Test | Light Sensitive |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Red tetrahedral crystal or powder |
| Odour | Odorless |
| Melting Point | 259 °C |
| Boiling Point | 350 °C |
| Vapour Pressure | 100 mmHg at 261.8 °C; 400 mmHg at 324.2 °C |
Source: PubChem CID 24485 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 17397936 |
| CAS Number | 7774-29-0 |
| IUPAC Name | diiodomercury |
| EC Number | 231-873-8 |
| Molecular Formula | HgI2 |
| Molecular Weight | 454.3989 |
| Exact Mass | 455.7796 |
| SMILES | I[Hg]I |
| InChIKey | YFDLHELOZYVNJE-UHFFFAOYSA-L |
| InChI | InChI=1S/Hg.2HI/h;2*1H/q+2;;/p-2 |
| PubChem CID | 24485 |
| UN Number | UN1638 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2852109000 |
| Tariff Code | 2852100000 |
Safety & GHS
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Toxic
GHS06
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H300 +H310 + H330 Fatal if swallowed, in contact with skin or if inhaled
- H373 May cause 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
- P262 Do not get in eyes, on skin, or on clothing
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P310 Immediately call a POISON CENTER or doctor/physician
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, 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
- diiodomercury
- HgI2
- Hydrargyrum diodatum
- MERCURIC IODIDE
- Mercuric iodide, red
- Mercurius bijodatus
- Mercury biniodide
- Mercury diiodide
- Mercury(II) iodide
- Red mercuric iodide
Frequently asked questions
What is Mercury (II) iodide red used for?
Mercury (II) iodide red is primarily used in research applications, including semiconductor studies and as a material in optoelectronic devices.
What is the chemical formula and molecular weight of Mercury (II) iodide red?
The formula is HgI2 and the molecular weight is 454.3989 g/mol.
How should Mercury (II) iodide red be stored?
It should be stored at ambient temperature, away from light and moisture, and kept in a tightly sealed container.
What grade is available for Mercury (II) iodide red?
Molekula supplies Mercury (II) iodide red in research grade.
Can Molekula supply Mercury (II) iodide red in bulk?
Yes, Molekula can supply Mercury (II) iodide red in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a purchase of Mercury (II) iodide red?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) compliant with GHS 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.