Molekula
Sodium iodide, anhydrous
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
Sodium iodide, anhydrous is an inorganic salt composed of sodium and iodine, primarily used in pharmaceuticals, X-ray imaging, and as a reagent in chemical synthesis. It serves as a source of iodide ions in various applications, including thyroid hormone production and analytical chemistry. It is also used in photographic processing, as a solvent for iodine, in cloud seeding, and, when doped with thallium, as a scintillation crystal for radiation detection. CAS number 7681-82-5, with the molecular formula NaI and a molecular weight of 149.9. It is stored at ambient conditions and carries a signal word of Danger due to its potential hazards. Molekula supplies sodium iodide, anhydrous 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 — £29.50 per pack ex VAT · £35.40 inc. VAT
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250 g — £55.00 per pack ex VAT · £66.00 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 | White crystalline powder |
| Identification | Conforms to reference |
| Loss on Drying | ≤ 1.0% |
| Chloride (Cl-) | ≤ 0.5% |
| Assay | ≥ 99.0% |
| Heavy Metals (Pb) | ≤ 10ppm |
| Barium (Ba) | Conforms to structure |
| Sulphates (SO4)(2-) | ≤ 0.04% |
| Iodates | Conforms to structure |
| Sylvite | ≤ 0.05% |
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 | Colorless, cubic crystals |
| Odour | Odorless |
| Melting Point | 660 °C |
| Boiling Point | 1304 °C |
| Vapour Pressure | 1 mmHg at 767 °C |
| Refractive Index | 1.7745 |
Source: PubChem CID 5238 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 39704015 |
| CAS Number | 7681-82-5 |
| IUPAC Name | sodium iodide |
| EC Number | 231-679-3 |
| Molecular Formula | NaI |
| Molecular Weight | 149.9 |
| Exact Mass | 149.8942 |
| SMILES | [Na+].[I-] |
| InChIKey | FVAUCKIRQBBSSJ-UHFFFAOYSA-M |
| InChI | InChI=1S/HI.Na/h1H;/q;+1/p-1 |
| PubChem CID | 5238 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28276051 |
| Tariff Code | 2827600010 |
Safety & GHS
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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
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H372 Causes damage to organs through prolonged or repeated exposure
- H400 Very toxic to aquatic life
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
- 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, 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
- Iodide (as sodium iodide)
- Iodure de sodium
- Ioduril
- Jodid sodny
- Natrii iodidum
- Natriumjodid
- sodium iodide
- Sodium iodide (NaI)
- Sodium monoiodide
- Soiodin
Frequently asked questions
What is sodium iodide (anhydrous) commonly used for?
Sodium iodide is primarily used in organic synthesis (e.g., Finkelstein reactions), pharmaceuticals, and as a reagent in analytical chemistry, including iodometry and X-ray imaging.
What is the chemical formula and molecular weight of sodium iodide (anhydrous)?
The chemical formula is **NaI**, and the molecular weight is **149.9 g/mol**.
How should sodium iodide (anhydrous) be stored?
Store in a tightly sealed container at **ambient temperature**, away from moisture and oxidizing agents.
What grades of sodium iodide (anhydrous) does Molekula supply?
Molekula supplies **ACS reagent grade** and **technical grade** sodium iodide (anhydrous).
Can Molekula supply sodium iodide (anhydrous) in bulk quantities?
Yes, we offer bulk packaging options—please contact us for specific quantities and pricing.
What documentation comes with an order of sodium iodide (anhydrous)?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **packaging label** with hazard information.
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.