Characteristics: Silvery, moderately hard alkaline-earth metal, readily fabricated by all standard methods. Lightest of the structural metals. Strong reducing agent. Electrical conductivity similar to aluminum. Soluble in acids, insoluble in water. Magnesium is the central element of the chlorophyll molecule and is also an important component of red blood corpuscles.
Hazards: Combustible at 650 oC (solid metal). Flammable, dangerous fire hazard (powder, flakes, etc.). Use dry sand or talc to extinguish.