Molekula
Selenium, powder
Selenium powder is a crystalline elemental selenium used in electronics, glass manufacturing, and as a nutritional supplement. It is a yellow to red or gray solid with a molecular weight of 78.96 g/mol and a CAS number of 7782-49-2. Store at ambient temperatures. Hazardous: signal word Danger. Molekula supplies Selenium powder from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Selenium powder is a crystalline elemental selenium used in electronics, glass manufacturing, and as a nutritional supplement. It is a yellow to red or gray solid with a molecular weight of 78.96 g/mol and a CAS number of 7782-49-2. Store at ambient temperatures. Hazardous: signal word Danger. Molekula supplies Selenium powder from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | Black powder |
| Iron (Fe) | ≤ 0.01% |
| Lead (Pb) | ≤ 0.001% |
| Copper (Cu) | ≤ 0.001% |
| Sodium (Na) | ≤ 0.001% |
| Selenium (Se) | ≥ 99.0% |
| Sulphur (S) | ≤ 0.001% |
| Tellurium (Te) | ≤ 0.01% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| CAS Number | 7782-49-2 |
| Molecular Formula | Se |
| Molecular Weight | 78.96 |
| SMILES | [Se] |
| EC / UN Number | 3288 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28049000 |
| Tariff Code | 2804900000 |
Safety & GHS
-
Flammable
GHS02
-
Corrosive
GHS05
Hazard statements
- H301 Toxic if swallowed
- H331 Toxic if inhaled
- H373 May cause damage to organs through prolonged or repeated exposure
- H413 May cause long lasting harmful effects 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
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P308+313 IF exposed or concerned: Get medical advice/attention
For research and industrial use only
Documents
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.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is selenium powder used for?
Selenium powder is used in the production of semiconductors, glass coloring, and as a nutritional supplement in trace amounts.
What is the chemical formula and molecular weight of selenium powder?
The chemical formula is Se and the molecular weight is 78.96 g/mol.
How should selenium powder be stored?
Selenium powder should be stored at ambient temperature, away from moisture and incompatible materials.
What grade of selenium powder is available?
Molekula supplies selenium powder in high purity grade, suitable for laboratory and industrial applications.
Can Molekula supply selenium powder in bulk?
Yes, Molekula can supply selenium powder in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a selenium powder order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.