Friday, 3 February 2012

Magnesium powder - 140 Mesh (105 Micron) - 99.5 % - 200 g

Chemical formula: Mg

Amount: 200 g

Appearance and odour: fine grey, metallic powder without appreciable odour

Grade: chemically pure (99.5 %), 140 Mesh (105 Micron)

Packaging: professional wide necked, white HDPE bottle with blue conical seal cap and tamper ring. Labelled. Bottle and cap are UN approved and reusable.

Description and uses: this is a high end grade, both in purity and fineness (140 mesh, 105 micron) suitable for pyrotechnical uses, survivalism (fire making) as well as various inorganic and organic synthesis.

With many powdered strong oxidisers magnesium powder forms flash powders (reaction temperature reached is so high reaction products instantly vapourise).

In organic chemistry it's mainly used in Grignard reactions. This high grade is perfectly suitable as a Grignard substrate.

As a reducing agent in inorganic chemistry it reacts with anhydrous fluorides much the same way aluminium powder reacts with anhydrous oxides. Among the fluorides that can be successfully reduced to lump metal (and magnesium fluoride as a by-product) are several D-block element fluorides (TiF3, ZrF4 and others), as well as UF4 and ThF4.

From a molten mixture of anhydrous manganese (II) chloride and potassium chloride, slowly added magnesium powder precipitates pure manganese metal (a laboratory preparation method of manganese metal).

Magnesium is also a very powerful reducing agent in aqueous conditions.

Dispatch: depending on time of receipt of your order, your item will be dispatched either same day or next day at the latest.

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CAS: none
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