BAUXITE Chemical Properties

Density 

2.275

form 

Dust (red, brown, or yellow)

color 

Buff to orange solid

Odor

odorless

Stability:

Stable.

CAS DataBase Reference

1318-16-7

EPA Substance Registry System

Bauxite (1318-16-7)

Safety Information

Toxicity

TCLo ihl-hmn: 22 mg/m3/5Y GTPZAB 4,28,60

BAUXITE Usage And Synthesis

Chemical Properties

solid

Chemical Properties

Bauxite consists mainly of gibbsite, Al(OH)3, and varying amounts of kaolinite, and iron and titania impurities. Because the loss on ignition is high, bauxite must be calcined to high temperatures before use. During calcination, it is converted to a dense grain consisting mainly of corundum, Al2O3, and mullite.

Uses

Ore for production of alumina; adsorbent in oil refining

Uses

Absorbent catalysts

Definition

A natural aggregate of aluminumbearing minerals, more or less impure, in which the aluminum occurs largely as hydrated oxides. It is usually formed by prolonged weathering of aluminous rocks. Contains 30–75% Al2O 3 , 9–31% H2O, 3–25% Fe2O 3 , 2–9%, SiO2, 1–3% Ti O 2 .

Definition

A mineral hydrated form of aluminum hydroxide; the principal ore of aluminum.

Health Hazard

Bauxite can be considered to be a nuisance particulate; long experience with mining and refining of bauxite has not revealed significant adverse health effects.
Nuisance particulates have little adverse effect on lungs and do not produce significant organic disease or toxic effect when exposures are kept under reasonable control.

Safety Profile

A nuisance dust. Human systemiceffects by inhalation: fibrosis, focal (pneumoconiosis).

BAUXITE(1318-16-7)Related Product Information

• BAUXITE ORE (JAMACIAN) - TRACE ELEMENTS(CRM STANDARD)
• Leach solutions, bauxite
• BAUXITE, SURINAM
• BAUXITE ORE (ARKANSAS) - TRACE ELEMENTS(CRM STANDARD)
• BAUXITE ORE (SURINAM) - TRACE ELEMENTS(CRM STANDARD)
• BAUXITE ORE (AUSTRALIAN) - TRACE ELEMENTS(CRM STANDARD)
• ZINC OXIDE-AL2O3 DOPED
• Mica
• YTTRIUM ALUMINUM OXIDE
• ALUMINUM OXIDE-CHROMIUM OXIDE
• MULLITE
• ALUMINUM SILICATE
• cordierite
• ALUMINUM OXIDE-TITANIUM OXIDE
• ALUMINUM ZIRCONATE
• SODIUM ALUMINUM OXIDE
• BAUXITE
• MAGNESIUM ALUMINUM ZIRCONIUM OXIDE