Aluminum oxide , 99.99%, coating , 1344-28-1
Synonym(s):
Aluminum oxide;Alumina;Sapphire;Aluminum oxide nanowires;Alumina Chromatographic Grade
CAS NO.：1344-28-1
Empirical Formula: Al2O3
Molecular Weight: 101.96
MDL number: MFCD00003424
EINECS: 215-691-6
| Pack Size | Price | Stock | Quantity |
| 25G | RMB54.40 | In Stock |
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| 100G | RMB127.20 | In Stock |
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| 500G | RMB319.20 | In Stock |
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| others | Enquire |
PRODUCT Properties
| Melting point: | 2040 °C(lit.) |
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| Boiling point: | 2980°C |
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| Density | 3.97 |
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| vapor pressure | 17 mm Hg ( 20 °C) |
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| refractive index | 1.765 |
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| Flash point: | 2980°C |
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| storage temp. | Sealed in dry,Room Temperature |
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| solubility | Miscible with ethanol. |
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| form | powder |
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| color | White to pink |
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| Specific Gravity | 3.97 |
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| Odor | Odorless |
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| PH Range | 3.5 - 4.5 |
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| PH | 7.0±0.5 ( in H2O) |
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| Water Solubility | INSOLUBLE |
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| Crystal Structure | Trigonal |
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| crystal system | Three sides |
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| Merck | 14,356 |
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| Space group | R3c |
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| Lattice constant |
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| Exposure limits | ACGIH: TWA 1 mg/m3 OSHA: TWA 15 mg/m3; TWA 5 mg/m3 |
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| Dielectric constant | 4.5（Ambient） |
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| InChIKey | PNEYBMLMFCGWSK-UHFFFAOYSA-N |
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| CAS DataBase Reference | 1344-28-1(CAS DataBase Reference) |
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| NIST Chemistry Reference | Aluminum oxide(1344-28-1) |
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| EPA Substance Registry System | Alumina (1344-28-1) |
Description and Uses
Aluminum(III) oxide is also called aluminum oxide. In mineral form it is called corundum and is referred to as alumina in conjunction with mining and aluminum industries. Alumina exists in hydrated forms as alumina monohydrate, Al2O3?H2O and alumina trihydrate Al2O3?3H2O. The geologic source of aluminum is the rock bauxite, which has a high percentage of hydrated aluminum oxide. The main minerals in bauxite are gibbsite (Al(OH)3), diaspore (AlO(OH)), and boehmite (AlO(OH).
Aluminum oxide is known as the mineral bauxite. Its main use is for the production of aluminum metal by electrolysis. It is also used in many other chemical reactions.
Safety
| Symbol(GHS) |   GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H225-H319-H336 |
| Precautionary statements | P210-P261-P305+P351+P338 |
| Hazard Codes | Xi,F |
| Risk Statements | 36/37/38-67-36/38-11-36 |
| Safety Statements | 26-24/25-16-7-36 |
| WGK Germany | - |
| RTECS | BD1200000 |
| F | 3 |
| TSCA | Yes |
| HazardClass | 8 |
| HS Code | 28181010 |
| Hazardous Substances Data | 1344-28-1(Hazardous Substances Data) |
| Toxicity | Chronic inhalation of Al2O3 dusts may cause lung damage. |