Molekula
Magnesium powder
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
Magnesium powder is a highly reactive, silvery-white metal used in pyrotechnics, fireworks, and as a reducing agent in chemical synthesis. It’s also applied in metallurgy, desulfurization, and as an alloying element. This fine powder has a CAS number of 7439-95-4, a molecular weight of 24.305 g/mol, and requires ambient storage. It carries a **Danger** signal word due to its flammability and reactivity. Molekula supplies Magnesium powder 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 — £46.70 per pack ex VAT · £56.04 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 | Dark Grey powder |
| Assay | ≥98.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 4.3 (4.2) |
| Packing Group | I |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Silvery-white metal |
| Odour | None |
| Melting Point | 651 °C |
| Boiling Point | 1100 °C |
| Solubility (other solvents) | Insol in cold water, chromium trioxides; soluble in mineral acids |
| Vapour Pressure | 1 Pa at 428 °C |
Source: PubChem CID 5462224 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 90021881 |
| CAS Number | 7439-95-4 |
| IUPAC Name | magnesium |
| EC Number | 231-104-6 |
| Molecular Formula | Mg |
| Molecular Weight | 24.305 |
| Exact Mass | 23.985 |
| SMILES | [Mg] |
| InChIKey | FYYHWMGAXLPEAU-UHFFFAOYSA-N |
| InChI | InChI=1S/Mg |
| PubChem CID | 5462224 |
| UN Number | UN1418 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 8104.30.0000 |
| Tariff Code | 8104300090 |
Safety & GHS
-
Flammable
GHS02
Hazard statements
- H250 Catches fire spontaneously if exposed to air
- H260 In contact with water releases flammable gases which may ignite spontaneously
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P223 Keep away from any possible contact with water, because of violent reaction and possible flash fire
- P231+232 Handle under inert gas. Protect from moisture
- P235+410 Keep cool. Protect from sunlight
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+334 IF ON SKIN: Immerse in cool water/wrap in wet bandages
Documents
Safety Data Sheets (SDS)
Available in English, English (US), Estonian, 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
- Bye Zero
- Dietary Magnesium
- Giftpeak Magnesium Sleep Cream
- MAGNESIUM
- Magnesium metallicum
- Magnesium powdered
- Magnesium sheet
- Minaral mi tea
- Nmc Magma Mineral Pack
- Rieke's active magnesium
Frequently asked questions
What is magnesium powder commonly used for?
Magnesium powder is widely used in pyrotechnics, fireworks, flash photography, and as a reducing agent in metallurgy and chemical synthesis.
What is the chemical formula and molecular weight of magnesium powder?
The chemical formula is **Mg**, and the molecular weight is **24.305 g/mol**.
How should magnesium powder be stored?
Store magnesium powder in a **cool, dry place at ambient temperature**, away from moisture, oxidizing agents, and ignition sources.
What purity grades of magnesium powder does Molekula supply?
Molekula supplies magnesium powder in **technical and reagent grades**, with typical purities of **96-99.9%**.
Can Molekula supply magnesium powder in bulk quantities?
Yes, Molekula can supply magnesium powder in **bulk quantities**, with flexible packaging options (e.g., drums, bags) based on order volume.
What documentation is provided with a magnesium powder order?
Each order includes a **Certificate of Analysis (CoA)**, Safety Data Sheet (SDS), and a **Certificate of Conformity** for traceability and compliance.
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.