Skip to content
Molekula

Molekula

Magnesium Powder 0-2 mm

SKU 90034271 CAS 7439-95-4 Mg MW 24.3 Made to order Bulk quantities on request

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 powder (0–2 mm) is a highly reactive, silvery-gray metal used in pyrotechnics, fireworks, and as a reducing agent in chemical synthesis. Its rapid combustion makes it essential for flare compositions and metallurgical applications. This product has a CAS number of 7439-95-4, a molecular weight of 24.3 g/mol, and requires ambient storage with strict handling due to its flammability. The signal word is Danger, indicating severe hazards if improperly managed. Molekula supplies Magnesium Powder 0–2 mm from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Expect a response within hours Speak to a chemist: +44 (0) 3302 000333

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.

Quantity
Unit
Needed by
Full name
Email
Company
Phone (optional)
Notes

Expect a response within hours

Prices exclude VAT/sales tax and shipping.

Specifications

Property Value
Appearance Grey solid
Bulk density 0.80-1.00
Magnesium (Mg) ≥99.8%
Aluminium (Al) ≤0.05%
Mangan ≤0.05%
Sieve analysis >2000um ≤5.0%
Sieve analysis >400um ≤2.0%
Magnesium Oxide (MgO) ≤1.00%

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 90034271
CAS Number 7439-95-4
IUPAC Name magnesium
EC Number 231-104-6
Molecular Formula Mg
Molecular Weight 24.3
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
Tariff Code 81049000

Safety & GHS

Danger
  • GHS pictogram — Flammable Flammable GHS02

Hazard statements

  • H228 Flammable solid
  • H252 Self-heating in large quantities; may catch fire
  • 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
  • P220 Keep/Store away from clothing/combustible materials
  • 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 Keep cool

Documents

Safety Data Sheets (SDS)

Available in English, French, 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.

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 is magnesium powder primarily used for?

Magnesium powder is commonly used in pyrotechnics, metallurgy (e.g., alloy production), as a reducing agent in chemical synthesis, and in fireworks for bright white flames.

What is the chemical formula and molecular weight of magnesium powder?

The chemical formula is Mg, and the molecular weight is 24.3 g/mol.

How should magnesium powder be stored?

Store in a cool, dry, well-ventilated area at ambient temperature, away from moisture, oxidizing agents, and ignition sources. Use airtight containers.

What grades or purity levels of magnesium powder does Molekula supply?

Molekula supplies magnesium powder (0–2 mm) specified at a magnesium (Mg) content of ≥99.8%, with magnesium oxide (MgO) ≤1.00%, aluminium (Al) ≤0.05% and manganese ≤0.05%. Higher purity or custom grades may be available upon request.

Can Molekula supply magnesium powder in bulk quantities?

Yes, we offer bulk packaging options (e.g., 25 kg drums, 1 MT super sacks) for industrial and commercial customers. Minimum order quantities may apply.

What documentation is provided with a magnesium powder order?

Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS/SDS), and Dangerous Goods Declaration where required. Additional certifications (e.g., REACH) are available upon request.

Is Magnesium Powder 0-2 mm dangerous goods for shipping?

Yes. Magnesium Powder 0-2 mm 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.

Talk to a chemist
Documents Pricing
Request a quote
Tell us the product and the quantity you need — including quantities larger than our listed packs. Expect a response within hours.
Full name
Company
Email
Phone (optional)
Product
Quantity needed

Ask for whatever you actually need — the pack sizes on our catalogue pages are a starting point, not a limit.

Message
View basket