Aluminum oxide manufacturers and suppliers

Aluminum oxide suppliers

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

Safety Information

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.

Use

Pure Aluminum oxide, needed to produce aluminum by the Hall process, is made by the Bayer process. The starting material is bauxite (Al2O3 nH2O). The ore contains impurities, such as, SiO2, Fe2O3, TiO2, and Na2O. Most impurities are removed following treatment with caustic soda solution. Bauxite is dissolved in NaOH solution. Silica, iron oxides and other impurities are filtered out of the solution. CO2 is then bubbled through this solution. This precipitates areheated to remove water and produce Al2O3. These impurities are removed. Calcinations of bauxite produce Aluminum oxide of abrasive and refractory grades. Activated Aluminum oxide of amorphous type, as well as the transition Aluminum oxides of , , , and forms, are obtained from various aluminum hydroxides, such as, - and -trihydrates, -monohydrate and Aluminum oxide gel. Such chemicals arealsoobtained from bauxite by the Bayer process.

You can find Aluminum oxide suppliers, manufacturers, and distributors from countries such as China, United States and the India here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.