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Alumina Powder

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Alumina Powder

(5 customers reviewed)

Alumina is aluminum oxide (Al2O3). Along with silica, it is the most important component in the constitution of clays and glazes, giving them resistance and increasing its ripening temperature. Aluminum oxide exists in nature in the form of corundum and emery. It has the particularity of being harder than aluminum and the melting point of Alumina is 2072 degrees Celsius (2345.2 K) compared to 660 degrees Celsius (933.2 K) for aluminium, so its welding must be done with alternating current.

Alumina is aluminum oxide (Al2O3). Along with silica, it is the most important component in the constitution of clays and glazes, giving them resistance and increasing its ripening temperature. Aluminum oxide exists in nature in the form of corundum and emery. It has the particularity of being harder than aluminum and the melting point of Alumina is 2072 degrees Celsius (2345.2 K) compared to 660 degrees Celsius (933.2 K) for aluminium, so its welding must be done with alternating current.


Presentation:

  • In bulk (by container, half container or full container).
  • At the convenience of the client.

Physical-Chemical

  • • Very good electrical insulation (1x1014 to 1x1015 Ωcm).
  • • The melting temperature is 660 ° C.
  • • Boiling point of 2450 ° C.
  • • Bright metallic gray colour.
  • • The main impurity is iron.
  • • Moderate to extremely high mechanical resistance (300 to 630 MPa).
  • • Very high compressive strength (2000 to 4000 MPa).
  • • High hardness (from 15 to 19 GPa).
  • • Moderate thermal conductivity (20 to 30 W / mK).
  • • High resistance to the corrosion.
  • • Good sliding properties.
  • • Low density (from 3.75 to 3.95 g cm3).
  • • Operating temperature without mechanical load from 1,000 to 1,500 ° C.
  • • Bio-inerte y compatible con alimentos.


APPLICATION

Aluminum powders are used in paints, pigment coatings, printing inks, rocket fuel, explosives, abrasives and ceramics, in the production of organic and inorganic aluminum chemicals and as catalysts. The pyrotechnic powder is mixed with charcoal and used in the manufacture of fireworks. The coarse powder is used in aluminothermy (thermite reaction). The primary aluminum industry uses alumina primarily as a basic raw material for aluminum production. In addition, alumina is used for its own qualities as ceramic material in conditions of high temperatures or good tribological properties, like in:

  • • Thermal and electrical insulation for the upper part of the electrolytic cells. Protective coating to prevent oxidation of the carbon anodes.
  • • Absorption of emissions from tanks.
  • • It is also used to dry compressed air as it has the property of absorbing water.
  • • In the health area of ​​dental prosthetics, it is used as a base for the structure of crowns and bridges, providing great strength and resistance, with low weight and good aesthetic results thanks to its white color.
  • • In ball mills it is used to prepare glazes or other ceramic materials, such as grinding balls.
  • • In the manufacture of termites mixed 50% with iron oxide (II).
  • • As an electrical insulator in spark plugs of gasoline vehicles.
  • • As an abrasive in many industrial processes for finishing, polishing, ultrasonic mechanized.

Conservation Mode


Combustible, with many of its reactions likely to cause fires and explosions. Uncoated aluminum powder can emit flammable gas when wet.

Risk factor's:

PHYSICAL DAMAGES:

        Dust explosion is possible if, in the form of powder or granules, it is mixed with air.

CHEMICAL DAMAGE:

        Reacts with water and alcohols and violently with oxidants, strong acids, strong bases and chlorinated hydrocarbons, causing fire and explosion hazard.

Hazard identification

Emergency summary ATTENTION

        Product dust can irritate the eyes, skin and respiratory system. Prolonged exposure may cause chronic effects.

OSHA Regulatory Status

        This product is considered hazardous under 29 CFR 1910.1200 (Hazard Communication).

Potential Health Effects

Routes of exposure Inhalation.
        Skin contact. Eye contact. Ingestion.

Eyes
        Dust or talc can irritate eye tissue. If irritation occurs, it is expected to be transient.

Skin
        Dust or talc can irritate the skin.

Inhalation
        Dust inhalation may cause respiratory irritation.

Ingestion
        It is expected to be a reduced risk of ingestion. May cause temporary irritation of the throat, stomach, and gastrointestinal tract.

Affected Organs
        Respiratory system, lungs.

Chronic Effects
        Frequent inhalation of dust over a long period of time increases the risk of developing Lung diseases. May cause lung damage.

Possible health damage
        The components of the product are not classified as dangerous for the environment. However, this does not exclude the possibility that Large or frequent spills can have a damaging or detrimental effect on the environment.

Transportation Conditions

Aluminum powder is transported in the form of ingots, mostly tied with iron strips. It should be well covered with plastic sheeting to prevent contamination from other cargo. Avoid scratching and cutting the aluminum. It is also shipped in powder form.

Market segment

Export quality for the whole world.

Labeling Values

  • Product Name.
  • Origin.
  • Company Number.
  • Lot Number.
  • Product Destination.
  • Product Conservation.
  • Production Date(Y/M/D).
  • Expiration Date.
  • Conservation Data.
  • Barcode.
  • Weight.
  • Any other necessary.






Since the product is packaged and shipped in bulk, labeling is unnecessary; without However, according to the presentation required by the client, a label is offered, with the presented data.

Labeling can be done in any language or combination of languages ​​as per customer request.

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