• Magnetite / Black Iron Oxide (Fe304) Powder Synonyms:

magnetite, Fe3O4, black iron oxide, iron (II, III) oxide, ferrous ferric oxide, ferro ferric oxide, ferric ferrous oxide, MIL-I-275B, CAS # 1309-38-2, nano particle, black iron sand, magnetite sand, beach magnetite sand, satetsu, magnetic black, magnetic iron ore, magnetic oxide, super paramagnetic iron oxide, triiron tetraoxide, ferrosoferric oxide, iron black, fenosoferric oxide, black Iron BM, iron(III) oxide,  meramec M 25, river sand, black gold F 89, iron oxide (Fe3O4), RB-BL, eisen(II,III)-oxid, 11557 black, CCRIS 4376, lodestone,   

•   Magnetite / Black Iron Oxide Powder Common Formula: 

 Fe₃O₄  

• Magnetite / Black Iron Oxide (Fe304) Powder Description:

a) Magnetite is a natural iron oxide magnet, hence the name, giving it a very nice distinguishing characteristic. Magnetite is the most magnetic of all the minerals on Earth.

b) Magnetite is a member of the spinel group which has the standard formula A(B)2O4. The A and B represent different metal ions that occupy specific sites in the crystal structure. In the case of magnetite, Fe3O4, the A metal is Fe +2 and the B metal is Fe +3; two different metal ions in two specific sites. This arrangement causes a transfer of electrons between the different irons in a structured path or vector. This electric vector generates a magnetic field.

c) Lustrous black, magnetic mineral, Fe3O4. It occurs in crystals of the cubic system, in masses, and as a loose sand. It is one of the important ores of iron (magnetic iron ore) and is a common constituent of igneous and metamorphic rocks. It is found in various parts of the United States, Norway, Sweden, and the Urals. A variety of magnetite, lodestone (or loadstone) exhibits polarity and is especially interesting for its natural magnetism; Magnet Cove, Ark., became famous as a source.

d) Magnetite is sometimes found in large quantities in beach sand. Such mineral sands / iron sands / black sands are found in various places such as California and the west coast of New Zealand. The magnetite is carried to the beach via rivers from erosion and is concentrated via wave action and currents. 

• Magnetite / Black Iron Oxide (Fe304) Powder Typical Chemical Properties Available:

a) Purity Available: 96% to 99.9%

b) A Superparamagnetic iron oxide is available (10 microns in size)-- no magnetic memory 

• Magnetite / Black Iron Oxide (Fe304) Powder Typical Physical Properties Available:

a) Lumps, pieces, targets, granules and various powder/ particle granulations down to as small as 15 to 20 nanometers

b) Standard low micron APS (d50) granulations are typically available at 10 microns, 18 microns and 63 microns

c) Black iron oxide nanoparticles are presently commercially available as small as 15 to 20 nanometers

d) Custom granulations are available at premium pricing. Please contact us.

• Magnetite / Black Iron Oxide (Fe304) Powder Nominal Physical Constants:

a) Magnetite Luster:
Metallic
 
b) MagnetiteTenacity:
Brittle
 
c) Magnetite ID Mark:
Ferromagnetic
 
d) Magnetite Solid Density (gm/cm³):

~ 5.1
 
e) Magnetite pH:
~ 7
 
f) Magnetite Transparency:
Opaque
 
g) Magnetite Mohs Hardness @20°C:
~ 5.5 to 6.5
 
h) Magnetite Fracture:
Conchoidal
 
i) Magnetite Specific Gravity:
~ 5.17 to 5.18
 
j) Magnetite Color:
Black to grayish
 
k) Magnetite Crystal System:
Isometric
 
l) Magnetite Particle Shape:
Irregular
 
m) Magnetite Magnetic Properties:
Ferri magnetic

• Magnetite / Black Iron Oxide (Fe304) Powder Typical Applications:

a) Magnetite is an important ore of iron. Its perfect crystals are also famous among mineral collectors. This mineral is of scientific interest because of its special magnetic properties.

b) Magnetite is used as a pigment for magnetic applications, polishing compounds, cosmetics, medicines, polymer & rubber filler, building & construction, appliances, and magnetic inks.  

• Magnetite / Black Iron Oxide (Fe304) Powder Typical Packaging:

50 lbs. bags, poly-lined fiber drums, bulk bags and loose bulk 

• Magnetite / Black Iron Oxide (Fe304) Powder TSCA Status: 

a) Magnetite components are listed on the TSCA inventory.

b) For further information please call the E.P.A. at +1.202-554-1404 

• Magnetite / Black Iron Oxide (Fe304) Powder CAS Numbers:

CAS# 1317-61-9

CAS# 1309-38-2  

• Magnetite / Black Iron Oxide (Fe304) Powder Military Specification Number:

 MIL-I-275B