Aluminum oxide , Specific surface area: 144.8m2/g, total Kong Rong: 0.260cm3/g, average pore diameter: 7.19nm , 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

PRODUCT Properties

• Melting point: 2040 °C(lit.)
• Boiling point: 2980°C
• Density: 3.97
• vapor pressure: 17 mm Hg ( 20 °C)
• refractive index: 1.765
• Flash point: 2980°C
• storage temp.: Sealed in dry,Room Temperature
• solubility: Miscible with ethanol.
• form: powder
• Specific Gravity: 3.97
• color: White to pink
• PH: 7.0±0.5 ( in H2O)
• Odor: Odorless
• PH Range: 3.5 - 4.5
• Water Solubility: INSOLUBLE
• Crystal Structure: Trigonal
• Merck: 14,356
• Exposure limits: ACGIH: TWA 1 mg/m3; OSHA: TWA 15 mg/m3; TWA 5 mg/m3
• Dielectric constant: 4.5（Ambient）
• InChIKey: PNEYBMLMFCGWSK-UHFFFAOYSA-N

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
• Toxicity: Chronic inhalation of Al2O3 dusts may cause lung damage.