Molekula
Sodium iodide 99 - 100.5%
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 (NaI) is a highly pure inorganic salt primarily used in analytical chemistry, pharmaceuticals, and radiopharmaceuticals as a source of iodide ions, as well as in X-ray imaging and radiation detection. This reagent-grade sodium iodide contains 99–100.5% NaI by assay, with a molecular weight of 149.9 g/mol and CAS number 7681-82-5. It is stored at ambient conditions and carries a **Danger** signal word due to its potential hazards. Molekula supplies sodium 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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 | Colourless crystals or a white crystalline powder |
| Heavy metals | ≤ 10ppm |
| Identification | Conforms to structure |
| Loss on Drying | ≤ 3.0% (105°C, 3 hours) |
| Solubility | Soluble in water and ethanol |
| Assay | 99.0-100.5% |
| Alkalinity | To comply with limit test |
| Iron (Fe) | ≤20ppm |
| Clarity and colour of solution | Clear and colourless |
| Sulphates (SO4)(2-) | ≤150ppm |
| Iodates | To comply with limit test |
| Thiosulphate (S2O3) | To comply with limit test |
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 | 90032644 |
| 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
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
-
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 (99–100.5%) commonly used for?
Sodium iodide is primarily used in organic synthesis (e.g., Finkelstein reactions), pharmaceuticals, and as a reagent in analytical chemistry for iodide ion sources.
What is the chemical formula and molecular weight of sodium iodide?
The chemical formula is **NaI**, and the molecular weight is **149.9 g/mol**.
How should sodium iodide (99–100.5%) be stored?
Store in a cool, dry place at ambient temperature, away from moisture and oxidizing agents, in a tightly sealed container.
What purity grade is available for sodium iodide from Molekula?
Molekula supplies sodium iodide at a purity of **99–100.5%**, suitable for high-purity applications.
Can Molekula supply sodium iodide in bulk quantities?
Yes, Molekula can provide sodium iodide in bulk, with quantities tailored to customer requirements—please contact us for specifics.
What documentation comes with a sodium iodide order?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a packing list with batch details.
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.