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| CAS No.: | 1344-28-1 |
|---|---|
| Name: | Aluminum oxide |
| Molecular Structure: | |
 |
|
| Formula: | Al2O3 |
| Molecular Weight: | 101.96 |
| Synonyms: | 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; |
| EINECS: | 215-691-6 |
| Density: | 3.95-4.1 g/cm3 |
| Melting Point: | 2040 °C |
| Boiling Point: | 2980 °C |
| Flash Point: | 2980°C |
| Solubility: | insoluble in water |
| Appearance: | white odorless crystalline powder |
| Hazard Symbols: |
 Xi, F
|
| Risk Codes: | 36/37/38-67-36/38-11 |
| Safety: | 26-24/25-16-7-36 |
| Transport Information: | UN 1950 |
| PSA: | 0.00000 |
| LogP: | 0.31860 |
| Conditions | Yield |
|---|---|
| In neat (no solvent) heating (990°C); | |
| In neat (no solvent) heating (920°C); | A n/a B <1 C n/a |
| Conditions | Yield |
|---|---|
| In neat (no solvent) heating (1060°C); | A n/a B n/a C n/a D <1 |
| Conditions | Yield |
|---|---|
| In neat (no solvent, solid phase) byproducts: H2O; heated at 400°C for 24 h; X-ray powder diffraction; |
| Conditions | Yield |
|---|---|
| In neat (no solvent) heating (750 - 900°C); |
alumina
| Conditions | Yield |
|---|---|
| heating at 600°C; |
| Conditions | Yield |
|---|---|
| In neat (no solvent) 1070 K; high temp. XRD; DTA; TG; electron microscopy; |
alumina
| Conditions | Yield |
|---|---|
| calcination at 500°C; |
| Conditions | Yield |
|---|---|
| With air In solid direct thermal decompn., evacuated at 600°C for 3 h; X-ray diffraction analysis; |
alumina
| Conditions | Yield |
|---|---|
| In neat (no solvent) electron beam irradiation; |
alumina
| Conditions | Yield |
|---|---|
| heating; |
| Conditions | Yield |
|---|---|
| In further solvent(s) in 1-methylnaphthalene, soln. heated in autoclave at 300°C for 2h under N2; washed with acetone; air dried; XRD; | |
| In toluene High Pressure; soln. aluminum isopropoxide in toluene was heated in autoclave at 315°C for 2h; x-ray diffraction; | |
| In toluene soln. heated in autoclave at 250°C for 2h under N2; washed with acetone; air dried; XRD; | 0% |
| Conditions | Yield |
|---|---|
| In mineral oil High Pressure; Al compd. suspended in mineral oil, placed in autoclave, purged with N2,heated to 300°C (2.5°C/min), temp. held constant for 2 h; cooled, washed with acetone, dried in air, heated to 1100°C (10°C/min), held at this temp. for 1 h; | |
| In mineral oil High Pressure; Al compd. suspended in mineral oil, placed in autoclave, purged with N2,heated to 250-300°C (2.5°C/min), temp. held constant for 2 h; cooled, washed with acetone, dried in air, heated to 1150°C (10°C/min), held at this temp. for 1 h; |
| Conditions | Yield |
|---|---|
| In toluene soln. heated in autoclave at 300°C for 2h under N2; washed with acetone; air dried; XRD; | 0% |
| Conditions | Yield |
|---|---|
| In toluene soln. heated in autoclave at 300°C for 2h under N2; washed with acetone; air dried; XRD; | 0% |
| Conditions | Yield |
|---|---|
| In neat (no solvent) long-time heat treatment (e.g. 5h, 250-560°C) at low partial pressure of water vapour; |
alumina
| Conditions | Yield |
|---|---|
| In neat (no solvent) short-time heat treatment (e.g. below 10 s, 550°C) under determined partial pressure of water vapour and quick cooling; |
| Conditions | Yield |
|---|---|
| In toluene soln. heated in autoclave at 300°C for 2h under N2; washed with acetone; air dried; XRD; | 0% |
alumina
| Conditions | Yield |
|---|---|
| In neat (no solvent) calcined under isothermal conditions at 500 or 600 or 800 °C for 4 h in an air atmosphere; | |
| In neat (no solvent) gibbsite wet ground in a ball mill for 6 or 30 h, heated at 255°C, reversible react., in air; | |
| In neat (no solvent) thermal transformation (air, heating rate 10 K/min, 300°C); detn. by X-ray; | |
| In neat (no solvent) thermal treatment of gibbsite at 290°C; XRD; | |
| In neat (no solvent) thermal decomposition in air at temp. from room to 600 °C; neutron thermodiffraction, DTA-TGA, powder XRD; |
| Conditions | Yield |
|---|---|
| In neat (no solvent) heated at 580 °C for 0.5 h; powder XRD; |
alumina
| Conditions | Yield |
|---|---|
| In neat (no solvent) 770 K; high temp. XRD; DTA; TG; electron microscopy; |
| Conditions | Yield |
|---|---|
| In neat (no solvent) decomposition in air, kept at 255°C for 10 h; characterization by TG, IR and XRD; |
| Conditions | Yield |
|---|---|
| With tetrachloromethane In neat (no solvent) Kinetics; byproducts: HCl, COCl2, AlCl3; N2 as carrier gas; pretreating at 670 K for 30 min; 300-1100°C; XRD; TG; |
| Conditions | Yield |
|---|---|
| With tetrachloromethane In neat (no solvent) Kinetics; byproducts: HCl, COCl2, AlCl3; N2 as carrier gas; pretreating at 820 K for 30 min; 300-1100°C; XRD; TG; |
| Conditions | Yield |
|---|---|
| In neat (no solvent) heat treatment at 600°C; X-ray phase anal.; |
| Conditions | Yield |
|---|---|
| With tallow diamine In water Al(NO3)2 and NH4OH (3.6 or 4.5 molar ratio) reacted, centrifuged, washed(H2O), dispersed in H2O, tallow diamine soln. (EtOH) added, heated at 5 0 (24 h), at 100 (24), dried in air at 25 (24 h), at 100 (6 h), calcined3 h at 225 and 4 h at 500°C; |
alumina
| Conditions | Yield |
|---|---|
| In neat (no solvent) heated to 773 K at heating rate of 5 K/min; calcined in air at 773 K for24 h; identified by IR spectroscopy and X-ray diffraction; |
| Conditions | Yield |
|---|---|
| In neat (no solvent) gibbsite was milled for 12 and 24 h using alumina balls as grinding media and water as milling fluid, heated at 400 to 600°C; XRD; |
| Conditions | Yield |
|---|---|
| In hydrogenchloride react. of χ-Al2O3 with 28.8 % aq. HCl in a sealed tube for 7 days at above 100°C; |
alumina
| Conditions | Yield |
|---|---|
| With water In neat (no solvent) Kinetics; isothermally satd. water vapor, hydrothermal treatment; |
alumina
boehmite
| Conditions | Yield |
|---|---|
| With water In neat (no solvent) hydrothermal treatment at 130°C; |
| Conditions | Yield |
|---|---|
| With water In neat (no solvent) hydrothermal treatment at 130°C; |
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*Required Fields
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 ;
(3)InChIKey: PNEYBMLMFCGWSK-UHFFFAOYAC;
