Alumina hydrate Aluminum oxide trihydrate Trihydroxyaluminum
CAS #: 21645-51-2
EC Number: 244-492-7
FIRE & EXPLOSION
In case of fire in the surroundings, use appropriate extinguishing media.
PREVENT DISPERSION OF DUST!
Use local exhaust.
Fresh air, rest.
Rinse skin with plenty of water or shower.
Wear safety spectacles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth. Rest.
CLASSIFICATION & LABELLING
Sweep spilled substance into covered containers. Wash away remainder with plenty of water.
According to UN GHS Criteria
PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance
ODOURLESS WHITE SOLID IN VARIOUS FORMS.
3O 3 / Al(OH) 3
Molecular mass: 78.0
Melting point: 300°C See Notes. Density: 2.42 g/cm³ Solubility in water: none Vapour pressure, Pa at 20°C: <10
EXPOSURE & HEALTH EFFECTS
Routes of exposure
The substance can be absorbed into the body by inhalation.
Effects of short-term exposure
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly.
Effects of long-term or repeated exposure
OCCUPATIONAL EXPOSURE LIMITS
MAK: (inhalable fraction): 4 mg/m
3; (respirable fraction): 1.5 mg/m 3; pregnancy risk group: D
The apparent melting point caused by loss of crystal water is given.
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