|
   
- Magnesium (Mg) Metal Synonyms:
magnesium turnings, magnesium chips, magnesium raspings, magnesium powder, atomized magnesium powder, ellipsoidal magnesium powder, magnesium granules, magnesium foil, magnesium rod, Mg, grignard reaction, CAS 07439-95-4, UN 1869
- Magnesium (Mg) Turnings/ Magnesium Chips Designations:
Chemical Name: Magnesium
Chemical Formula: Mg
Element Category: Alkaline earth metal
- Magnesium (Mg) Turnings/ Magnesium Chips Description:
a) Magnesium turnings and chips are produced by milling commercial and high purity magnesium, keeping size under control to obtain the desired specific surface and reactivity. They are silver-white initially, but can turn to a dark gray if stored improperly.
b) Elemental magnesium is a fairly strong, silvery-white, light-weight metal (two thirds the density of aluminium). It tarnishes slightly when exposed to air, although unlike the alkali metals, storage in an oxygen-free environment is unnecessary because magnesium is protected by a thin layer of oxide which is fairly impermeable and hard to remove. Like its lower periodic table group neighbor calcium, magnesium reacts with water at room temperature, though it reacts much more slowly than calcium. When it is submerged in water, hydrogen bubbles will almost unnoticeably begin to form on the surface of the metal, though if powdered it will react much more rapidly. The reaction will occur faster with higher temperatures (see precautions). Magnesium also reacts exothermically with most acids, such as hydrochloric acid (HCl). As with aluminium, zinc and many other metals, the reaction with hydrochloric acid produces the chloride of the metal and releases hydrogen gas. Source: Wikipedia
99.7%, 99.95%, 99.97%, and 99.98%
a) Mg chips / Mg turnings (1/16 inch, 1/8 inch, 3/16 inch, and 1/4 inch)
b) Mg granule (Numerous granulations available)
c) Contact READE for specific requirements.
|
Standard Molecular Weight (g/mol.)
|
24.3050
|
|
Apparent Density (g/cm3)
|
1.74
|
|
Mohs Hardness
|
2.0
|
|
Melting Point (°C)
|
650
|
|
Boiling Point (°C)
|
1107
|
|
Thermal Expansion (25 °C)
|
24.8 µm·m−1·K−1
|
|
Thermal Conductivity (cal/s-cm-°C)
|
0.37
|
|
Electrical Resistivity (20 °C)
|
43.9 nΩ·m
|
|
Magnetivc Ordering
|
paramagnetic
|
|
Mohs Hardness
|
2.5
|
|
Crystal Structure
|
close-packed hexagonal
|
|
Appearance
|
silvery white solid
|
As reducing agents in organic chemistry, organometallic compound production, Grignard reactions, ductile iorfon manufacturing, hot metal steel desulfurization, pyrotechnics,
a) Mylar-aluminum bags, pails, fiber & steel drums, and bulk bins.
b) For further information on packaging options Contact READE
Unknown. For further information please call the E.P.A. at +1.202.554.1404
- NIOSH International Chemical Safety Data Card- Magnesium Pellets:
Visit this External Link
a) CAS# 07439-95-4
b) RTECS# OM2100000
- Magnesium (Mg) Safety Precautions:
a) Magnesium metal and its alloys are explosive hazards; they are highly flammable in their pure form when molten or in powder or in ribbon form. Burning or molten magnesium metal reacts violently with water. When working with powdered magnesium, safety glasses with welding eye protection are employed, because the bright white light produced by burning magnesium contains ultraviolet light that can permanently damage the retinas of the eyes.
b) Magnesium is capable of reducing water to the highly flammable hydrogen gas:
Mg (s) + 2 H2O ? Mg(OH)2 (s) + H2 (g)
As a result, water cannot be used to extinguish magnesium fires; the hydrogen gas produced will only intensify the fire. Dry sand is an effective smothering agent but is usable only on relatively level and flat surfaces.
c) Magnesium also reacts with carbon dioxide to form magnesium oxide and carbon:
2 Mg (s) + CO2 ? 2 MgO (s) + C (s)
Hence, carbon dioxide fire extinguishers cannot be used for extinguishing magnesium fires either.
d) Burning magnesium is usually quenched by using a Class D dry chemical fire extinguisher, or by covering the fire with sand or magnesium foundry flux to remove its air source. Source: Wikipedia
1869
-
 -
Registry of Toxic Effects of Chemical Substance (RTECS) Number & Link:
|
