Aluminum, English name: Aluminum, CAS: 7429-90-5, Chemical formula: Al, Molecular weight: 26.98, Density: 2.7 g/mL at 25 ° C (lit.), Melting point: 660.37 ° C (lit.), Boiling point: 246
7429-90-5
Aluminum (Aluminum)
CAS: 7429-90-5
Chemical formula: Al
<"" ="xl" "">It is a white ductile metal. Melting point 660.37 ° C; boiling point 2467 ° C; relative density 2.102. Soluble in alkali, hydrochloric acid, sulfuric acid, insoluble in water, concentrated nitric acid, hot acetic acid. It is a good conductor of heat and electricity. It has better conductivity, ductility, reflectivity and corrosion resistance than primary aluminum. The powder and air can form an explosive mixture. When it reaches a certain concentration, it will explode in contact with Mars. Mixing with oxidizing agents can form an explosive mixture. Violent chemical reactions can occur with fluorine, chlorine, etc.
MethodUsing high-quality fine aluminum as raw material, through directional solidification and purification, high-purity aluminum products are obtained. Or high-purity aluminum is obtained by electrolysis, the anode is an alloy of crude aluminum and copper, and the cathode is made of high-purity aluminum. During electrolysis in an electrolytic bath containing aluminum ions, more than 99.99% of high-purity aluminum is precipitated at the cathode, and the electrolysis temperature is about 750 ° C.
purposeUltra-high purity aluminum has many excellent properties and is widely used in the fields of electronics industry, automobile, aerospace, chemical industry, military industry, etc. It is an essential element for sputtering target materials for semiconductor manufacturing, superconducting cable stabilization materials, and super alloys. It is used in the manufacture of aluminum mirrors, maglev suspension materials, high-performance wires, bonding wires for integrated circuits, optoelectronic storage media, such as CD, CD-ROM, CD-RW, data disc or micro disc, DVD silver disc, etc. It is also a blade material for aerospace engines and missile launch engines. The use of high-purity aluminum in the field of electronic aluminum foil accounts for about 70% of the consumption of high-purity aluminum, and other uses account for about 30%.
securityIt is slightly toxic. Long-term inhalation can cause aluminum pneumoconiosis. Keep away from fire and heat sources. Protect from direct sunlight. Keep the container sealed. Operate and dispose of in nitrogen. It should be stored separately from oxidants, acids and alkalis. Do not mix storage and transportation. It should be stored in a clean, ventilated, dry and acid-free and alkali atmosphere warehouse to prevent product contamination and deterioration. During transportation, it should be protected from rain and moisture. Handle with care when loading and unloading, and do not collide violently.
| Chinese name | aluminum |
| English name | Aluminum |
| alias | aluminum Aluminum sheet aluminum powder Aluminum rod Aluminum ball Aluminum foil Aluminum, chips Aluminum silver powder Thin aluminum sheet aluminum antimonate Aluminum, flake Aluminum powder 100-200 mesh |
| English alias | E 173 LT-E005 Aluminum aluminium C.I. 77000 Aluminum rod Aluminumshot Aluminum foil Groups AluminumPowder Aluminumfoilmmt aluminiumpowder aluminium powder Aluminium "turnings ALMINIUM(PYROPOWDER) AluminumSilverPowder AluminiumSilverPowder Aluminum wire annealed ALUMINIUM (WELDINDFUMES) |
| CAS | 7429-90-5 |
| EINECS | 231-072-3 |
| chemical formula | At |
| molecular weight | 26.98 |
| InChI | InChI = 1 / Al |
| density | 2.7 g/mL at 25 °C (lit.) |
| melting point | 660.37 ° C (lit.) |
| Boiling Point | 2460 ° C (lit.) |
| flash point | 400°C |
| Water Solubility | Insoluble in water. |
| vapor pressure | 0.13-1300Pa at 974℃ |
| pH | 0.5 (H2O, 20°C) |
| storage conditions | Flammables area |
| stability | Stable. Flammable powder. Very exothermic reacts with halogens. Moisture and air sensitive. Incompatible with strong acids, caustic bases, strong oxidizing agents, halogenated hydrocarbons. |
| sensitivity | Moisture Sensitive |
| appearance | wire |
| specific gravity | 2.702 (Water=1) |
| color | Yellow |
| smell | Odorless |
| Merck | 13,321 / 13,321 |
| exposure limit | TLV-TWA 10 mg/m3 (Al dust), 5 mg/m3(pyrophoric Al powder and welding fumes),2 mg/m3 (soluble Al salts and alkyls)(ACGIH). |
| physicochemical properties | Silver-white flake-like powder. Relative density 2.55. Melting point 685 ° C. Boiling point 2065 ° C. Due to the adsorption of fatty acids on the surface of aluminum powder, aluminum powder is easy to float in the liquid. The ratio of flake-like aluminum powder particles to the diameter and thickness is about 100:1, and the aluminum powder is dispersed in the carrier and has the characteristics of parallel to the low material. Many particles are connected, and the large and small particles fill each other to form a continuous metal film, reflecting external light and having excellent hiding power. The continuous metal film formed by aluminum powder can be arranged in parallel in multiple layers in the carrier film, cutting off the capillary pores of the film-forming material, thus playing a good shielding role. It has the ability to reflect ultraviolet, infrared and visible light, and has the effect of heat dissipation on sunlight. Aluminum powder pigments have good "two-color effect" characteristics. Good weather resistance. Soluble in acid or alkali, and react with acid to produce hydrogen gas. |
| Dangerous goods sign | F - Flammable Items Xi - Irritants Xn - Hazardous Items N - Articles dangerous to the environment |
| Risk Terminology | R17 - Combustible in air. R15 - Release highly flammable gases in contact with water. R36/38 - Irritating to eyes and skin. R10 - Flammable. R67 - Vapor may cause drowsiness and dizziness. R65 - Ingestion may cause lung damage. R62 - Risk of impaired fertility. R51/53 - Toxic to aquatic life and may have long-term adverse effects on the aquatic environment. R48/20 - R38 - Skin irritation. R11 - Highly flammable. R50 - Very toxic to aquatic organisms. |
| security terms | S7/8 - S43A - S43 - In case of fire, extinguish with (type of fire extinguishing equipment). S26 - After accidental eye contact, immediately rinse with plenty of water and seek medical advice. S62 - If swallowed, do not induce vomiting; seek medical attention immediately and present its container or label. S61 - Avoid release into the environment. Refer to Special Instructions/Safety Data Sheet. S36/37 - Wear appropriate protective clothing and gloves. S33 - Take measures to prevent static electricity from occurring. S29 - Do not pour into the sewer. S16 - Keep away from sources of ignition. S9 - Keep container in a well ventilated place. |
| Dangerous Goods Shipping Number | 1396 |
| WGK Germany | 3 |
| RTECS | BD0330000 |
| TSCA | Yes |
| Customs number | 76032000 |
| Hazard Class | 8 |
| Packing Group | III |
| upstream raw material | Stearic acid, aluminum granules |
| downstream products | Aluminum hydroxide, aluminum sulfate, ferrovanadium, aluminum phosphide |
7429-90-5 - nature
Trusted Data
It is a white ductile metal. Melting point 660.37 ° C; boiling point 2467 ° C; relative density 2.102. Soluble in alkali, hydrochloric acid, sulfuric acid, insoluble in water, concentrated nitric acid, hot acetic acid. It is a good conductor of heat and electricity. It has better conductivity, ductility, reflectivity and corrosion resistance than primary aluminum. The powder and air can form an explosive mixture. When it reaches a certain concentration, it will explode in contact with Mars. Mixing with oxidizing agents can form an explosive mixture. Violent chemical reactions can occur with fluorine, chlorine, etc.
Last Updated: 2024-01-02 23:10:357429-90-5 - Method
Trusted Data
Using high-quality fine aluminum as raw material, through directional solidification and purification, high-purity aluminum products are obtained. Or high-purity aluminum is obtained by electrolysis, the anode is an alloy of crude aluminum and copper, and the cathode is made of high-purity aluminum. During electrolysis in an electrolytic bath containing aluminum ions, more than 99.99% of high-purity aluminum is precipitated at the cathode, and the electrolysis temperature is about 750 ° C.
Last Updated: 2022-01-01 08:53:407429-90-5 - purpose
Trusted Data
Ultra-high purity aluminum has many excellent properties and is widely used in the fields of electronics industry, automobile, aerospace, chemical industry, military industry, etc. It is an essential element for sputtering target materials for semiconductor manufacturing, superconducting cable stabilization materials, and super alloys. It is used in the manufacture of aluminum mirrors, maglev suspension materials, high-performance wires, bonding wires for integrated circuits, optoelectronic storage media, such as CD, CD-ROM, CD-RW, data disc or micro disc, DVD silver disc, etc. It is also a blade material for aerospace engines and missile launch engines. The use of high-purity aluminum in the field of electronic aluminum foil accounts for about 70% of the consumption of high-purity aluminum, and other uses account for about 30%.
Last Updated: 2022-01-01 08:53:417429-90-5 - security
Trusted Data
It is slightly toxic. Long-term inhalation can cause aluminum pneumoconiosis. Keep away from fire and heat sources. Protect from direct sunlight. Keep the container sealed. Operate and dispose of in nitrogen. It should be stored separately from oxidants, acids and alkalis. Do not mix storage and transportation. It should be stored in a clean, ventilated, dry and acid-free and alkali atmosphere warehouse to prevent product contamination and deterioration. During transportation, it should be protected from rain and moisture. Handle with care when loading and unloading, and do not collide violently.
Last Updated: 2022-01-01 08:53:417429-90-5 - brief introduction
Aluminum is a light metal with stable chemical properties. Here are some of the main properties and uses of aluminum:
Nature:
1. Low density, it is a lightweight metal.
2. Good electrical conductivity, with good electrical and thermal conductivity.
3. Corrosion-resistant, reacts with oxygen to form a dense alumina film that protects aluminum from further oxidation.
4. It has good plasticity and can be formed into various shapes by extrusion, rolling, forging, and other processes.
Purpose:
1. Building materials: Aluminum alloy is used to make windows, doors, door frames, etc. It has the advantages of corrosion resistance, lightness, and high strength.
2. Transportation: Aluminum alloys are widely used in the manufacturing of automobiles, airplanes, trains, and other transportation vehicles to save energy and improve transportation efficiency.
3. Electronic products: Aluminum is used in the manufacture of wires, cables, and electronic components.
4. Chemical materials: Aluminum oxides are widely used in the preparation of ceramics, glass, pigments, and so on.
Production method:
The main production method of aluminum is obtained by reacting alumina with metal reducing agents (such as coal and coke) at high temperature. The specific steps include: first mixing alumina with the reducing agent, heating at high temperature, and the reducing agent reacts with alumina to form metallic aluminum.
Safety information:
1. Excessive intake can have adverse effects on physical health.
2. Be careful to prevent the inhalation of aluminum dust to avoid respiratory problems.
3. Waste aluminum products can be recycled to avoid environmental pollution.
