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MAGNESIUM
Also known as: MAGNESIUM · 7439-95-4 · Magnesium sheet · Magnesium powdered
- CAS No.
- 7439-95-4
- Formula
- Mg
- Molar mass
- 24.305 g/mol
- PubChem CID
- 5462224
Flammable
Harmful / Irritant
Summary
Magnesium atom is an alkaline earth metal atom. It has a role as a macronutrient.
Background
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Physical properties
Sourced from PubChem Experimental Properties. Values may vary between sources and conditions.
Hazards
Ignites easily when exposed to a flame or spark.
May cause skin, eye or respiratory irritation.
Hazard statements
- H250: Catches fire spontaneously if exposed to air [Danger Pyrophoric liquids]
- H260: In contact with water releases flammable gases which may ignite spontaneously [Danger Substances and mixtures which in contact with water, e
- H228
- H252
- H261
- H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure
- H315: Causes skin irritation [Warning Skin corrosion/irritation]
- H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
Storage
Keep at room temperature, below 30 °C, out of direct heat.
Store somewhere well-ventilated and away from any ignition source.
Metal drums or tinted glass, tightly sealed.
Strong acids, strong bases and powerful oxidizers.
Personal protective equipment
Nitrile or butyl, at least 0.4 mm thick.
Safety goggles with side shields.
A2 organic-vapor cartridge if the room isn't well ventilated.
Occupational exposure limits (HSE)
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EU harmonised classification (ECHA C&L)
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Transport
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FDA recalls & enforcement
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Compatibilities
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- Flammable. Keep away from open flames, hot surfaces and sparks. Ground containers when transferring.
- Irritant / harmful. Ventilate the workspace and avoid skin contact.
Derived from the GHS classification shown above. These notes are generic guidance and do not replace the manufacturer's SDS or your local risk assessment.
FAQ
Is MAGNESIUM flammable?+
Yes. MAGNESIUM (CAS 7439-95-4) carries the GHS02 flame pictogram. Keep it away from ignition sources, use non-sparking tools, and ground metal containers when transferring liquid.
What PPE should I wear when handling MAGNESIUM?+
Safety glasses with side shields and nitrile gloves are the baseline. Ventilation should be sufficient to keep vapours below the occupational exposure limit. Check SDS section 8 for material-specific breakthrough times.
How should MAGNESIUM be stored?+
Store MAGNESIUM (CAS 7439-95-4) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials. Use a flammable-liquid cabinet and keep away from oxidizers and heat.
Is MAGNESIUM dangerous for the environment?+
No specific environmental pictogram (GHS09) is listed in our records for MAGNESIUM, but any chemical waste should be handled through your site's hazardous-waste procedure, not poured down the drain.
Where can I find the official Safety Data Sheet for MAGNESIUM?+
Official, up-to-date SDS documents are published by each manufacturer (Sigma-Aldrich, Merck, Thermo Fisher, VWR, Carl Roth, etc.) and by regulators such as ECHA and NIOSH. This page is an educational summary and does not replace the manufacturer's SDS.
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