Molekula
Magnesium turnings
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Magnesium turnings are highly reactive metallic flakes primarily used in pyrotechnics, alloy production, and as a reducing agent in chemical synthesis. They ignite easily in air, producing intense white flames, and are essential for applications requiring strong exothermic reactions. Magnesium turnings (CAS 7439-95-4) have a molecular weight of 24.31 g/mol and are stored at ambient conditions. They carry a Danger signal word due to their high flammability and reactivity.
Molekula supplies Magnesium turnings in 100 g, 500 g and 1 kg packs, from £24.00 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 6 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
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 — £20.00 per pack ex VAT · £24.00 inc. VAT
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500 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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1 kg — £38.70 per pack ex VAT · £46.44 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 | Metal/ grey solid |
| Bulk density | 0.80 - 1.00 |
| Magnesium (Mg) | ≥ 99.8% |
| Manganese (Mn) | ≤ 0.05% |
| Aluminium (Al) | ≤ 0.05% |
| Magnesium Oxide (MgO) | ≤ 1.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 4.1 |
| Packing Group | III |
| 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 | 29909363 |
| CAS Number | 7439-95-4 |
| IUPAC Name | magnesium |
| EC Number | 231-104-6 |
| Molecular Formula | Mg |
| Molecular Weight | 24.31 |
| Exact Mass | 23.985 |
| SMILES | [Mg] |
| InChIKey | FYYHWMGAXLPEAU-UHFFFAOYSA-N |
| InChI | InChI=1S/Mg |
| PubChem CID | 5462224 |
| UN Number | UN1869 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 81043000 |
| Tariff Code | 8104300035 |
Safety & GHS
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Flammable
GHS02
Hazard statements
- H228 Flammable solid
- H252 Self-heating in large quantities; may catch fire
- H261 In contact with water releases flammable gas
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P222 Do not allow contact with air
- P223 Keep away from any possible contact with water, because of violent reaction and possible flash fire
- P240 Ground/bond container and receiving equipment
- P370+378 In case of fire: Use appropriate media for extinction
Documents
Safety Data Sheets (SDS)
Available in English, 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- Bye Zero
- Dietary Magnesium
- MAGNESIUM
- Magnesium metallicum
- Magnesium powder
- Magnesium powdered
- Magnesium sheet
- Minaral mi tea
- Nmc Magma Mineral Pack
- Rieke's active magnesium
Frequently asked questions
What are magnesium turnings commonly used for?
Magnesium turnings are primarily used in pyrotechnics, metallurgy (e.g., alloy production), and as a reducing agent in chemical synthesis, including the preparation of Grignard reagents.
What is the chemical formula and molecular weight of magnesium turnings?
The chemical formula is Mg, and the molecular weight is 24.31 g/mol.
How should magnesium turnings be stored?
Store magnesium turnings in a dry, well-ventilated area at ambient temperature, away from moisture, oxidizing agents, and ignition sources.
What grades of magnesium turnings does Molekula supply?
Molekula supplies magnesium turnings to a published specification: grey metallic solid with a magnesium content of at least 99.8%, manganese and aluminium each at most 0.05%, magnesium oxide at most 1.0%, and a bulk density of 0.80 - 1.00.
Can Molekula supply magnesium turnings in bulk quantities?
Yes, we offer magnesium turnings in bulk quantities (minimum order quantities apply); pricing and lead times depend on volume and specifications.
What documentation comes with a magnesium turnings order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a packing list; additional documentation (e.g., batch-specific reports) may be provided upon request.
Where can I buy Magnesium turnings?
Directly from Molekula, which lists Magnesium turnings in 100 g, 500 g and 1 kg packs from £24.00 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Is Magnesium turnings dangerous goods for shipping?
Yes. Magnesium turnings ships as dangerous goods: UN1869, class 4.1, packing group III.
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.