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Aluminum oxide

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Aluminum oxide

EINECS 215-691-6
CAS No. 1344-28-1 Density 3.95-4.1 g/cm3
Solubility insoluble in water Melting Point 2040 °C
Formula Al2O3 Boiling Point 2980 °C
Molecular Weight 101.96 Flash Point 2980°C
Transport Information UN 1950 Appearance white odorless crystalline powder
Safety 26-24/25-16-7-36 Risk Codes 36/37/38-67-36/38-11
Molecular Structure Molecular Structure of 1344-28-1 (Aluminum oxide) Hazard Symbols IrritantXi,FlammableF

AD 998;AES 11C;AES 22S;AES-T;AF 115;AFL 204AB3;AG 507C;AGX (oxide);AHP 200(oxide);AKP 008;AKP 100;AKP 20;AKP 28;AKP 48 (oxide);AKP 53;AKP 700;AKP-G;AKP-G005;AKP-G 020;AKP-G 030;AKP-HP;AL 15-1;AL 15-2;AL 160SG-III;AL 160SG3;AL 160SG4;AL 200;AL 203-05;AL 203C;AL 20SD;AL23;AL 23 (oxide);AL31-03;AL 33;AL 3945E;AL 41;activated alumina;1067-2M;202P1;24A;272LA-A5;A 12 (metal oxide);A 12-4;A 1203C;A 13;A 13M;A 14 (alumina);A 152GR;A 152SG;A16;A 16SG;A 16UG;AA 03;AA 10;AA 2;AA 3;AA 400G;AC 11;AC 11K;AC 11R;Aluminium Hydroxide;


Aluminum oxide Specification

Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al2O3. With the CAS registry number 1344-28-1, it is also named as Activated aluminum oxide. The product's categories are Industrial / Fine Chemicals; Inorganics; Alumina & Aluminum Hydroxide TLC Adsorbents; Bulk Adsorbents for TLC; Thin Layer Chromatography (TLC); Al; Aluminum Materials Science; Nanomaterials Materials Science; Metal and Ceramic Science; Nanoparticles: Oxides, Nitrides, and Other Ceramics Nanomaterials; Oxides, and the other registry numbers are 107462-07-7; 107874-14-6; 122784-35-4; 12522-88-2; 127361-04-0; 12737-16-5; 131689-14-0; 135152-65-7; 135667-70-8; 138361-58-7; etc. Besides, it is white odorless crystalline powder, which should be stored in dry, ventilated warehouse. In addition, its molecular formula is Al2O3 and molecular weight is 101.96.

The other characteristics of Aluminum oxide can be summarized as: (1)EINECS: 215-691-6; (2)Refractive index: 1.765; (3)H-Bond Donor: 0; (4)H-Bond Acceptor: 3; (5)Rotatable Bond Count: 0; (6)Exact Mass: 101.947821; (7)MonoIsotopic Mass: 101.947821; (8)Topological Polar Surface Area: 43.4; (9)Heavy Atom Count: 5; (10)Complexity: 34.2; (11)Density: 3.95-4.1 g/cm3; (12)Melting point: 2072 °C; (13)Boiling point: 2977 °C; (14)Flash Point: 2980 °C; (15)Vapor pressure: 17 mm Hg ( 20 °C).

Preparation of Aluminum oxide: Aluminum oxide can be prepared by calcining of bauxite.
2 Al(OH)3 → Al2O3 + 3 H2O
The reaction consists several phases of alumina rather than solely corundum.

Uses of Aluminum oxide: Aluminum oxide is used as a filler that is a common ingredient in sunscreen. It is also used as a catalyst and catalyst support for the manufacture of many industrial catalysts. What's more, it is used to remove water from gas streams. And it can be used as a coarse or fine abrasive. In dentistry, it is also used as a polishing agent to remove stains. It is used as a material in hip replacements in health and medical applications. Furthermore, it can be used as a medium for chromatography,  a dosimeter for radiation protection and therapy applications for its optically stimulated luminescence properties in laboratory. And it is used in the fabrication of superconducting devices. Similarly, it can be used to purify Bauxite.
Al2O3 + 3 H2O → 2 Al(OH)3

When you are using Aluminum oxide, please be cautious about it as the following: it is highly flammable. Please keep away from sources of ignition. Moreover, it is irritating to eyes, respiratory system and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. And you should wear suitable protective clothing to avoid contact with skin and eyes. Additionally, its apours may cause drowsiness and dizziness. Please keep container tightly closed.  

You can still convert the following datas into molecular structure:
(1)SMILES: [O-2].[O-2].[O-2].[Al+3].[Al+3];
(2)InChI: InChI=1/2Al.3O/q2*+3;3*-2 ;

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