Magnesium powder ≥99.9%, <75 µm, Extra pure

Magnesium is often used for its low density (the lowest of the structural metals), especially in the automotive sector, where it allows fuel savings 75% greater than that of aluminum due to its lightness but also due to its good mechanical properties (especially for reducing vibrations). It would also lead to significant environmental gains in aviation.

Its production and recycling, on the other hand, is difficult, energy-intensive and polluting.

It is also an important reagent in chemistry, mainly used in desulfurization processes, during steel fabrication, metal purification (debismutation) or the Grignard reaction. It is flammable and has been used as a fuel in photographic strobes. It is a chemical essential for life, especially during photosynthesis, in bones, and in many biological processes. Its salts have multiple uses (milk from magnesium oxide Mg (OH) 2, magnesium carbonate, MgO, MgCl2)

In batteries

Magnesium's stable, abundant, non-toxic, non-corrosive nature, which additionally does not produce dendrites like lithium ion in rechargeable lithium batteries, makes it an attractive material for new rechargeable magnesium sulfur cells (Mg / S). Magnesium ion is tested as charge carrier, while magnesium metal is used for anodes and sulfur as cathode. In 2019, this technology is still emerging, but it is particularly promising because the Mg / S torque can deliver a theoretical energy density of 1722 Wh / kg with a voltage of around 1.7 V18; it could be a safe and inexpensive economical alternative to Li-ion batteries, including for electric vehicles (by storing more electricity). They could also benefit from high capacity cathodes, possibly operating at high voltage, whose material (sulfur based, with magnesium borohydride, magnesium borate or magnesium sulfide for example) would allow for higher energy density than lithium ion batteries. The conductivity of the sulfur cathode can be doped with carbon (semi-organic cathode composite)

Empirical formula Mg
Molar mass (M) 24.31 g / mol
Density (D) 1.75
Boiling point (bp) 1107 ° C
Melting point (mp) 651 ° C
ADR 4.1 III
CAS No. [7439-95-4]
EC no. 231-104-6 • UN No. 1418

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Hazard statements

H228 Flammable solid
H261 In contact with water releases flammable gases

Precautions - prevention

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. Do not smoke.

Precautions - response

P370 + P378 In case of fire: Use metal extinguishing powder to extinguish - never use water.

Precautions - storage

P402 + P404 Store in a dry place. Keep in a closed container.