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Aluminum Struktur

Aluminium

Bezeichnung:Aluminium

CAS-Nr7429-90-5

Englisch Name:Aluminum

CBNumberCB6227696

SummenformelAl

Molgewicht26.98

MOL-Datei7429-90-5.mol

Synonyma

Aluminium

Aluminium physikalisch-chemischer Eigenschaften

Schmelzpunkt 660.37 °C (lit.)
Siedepunkt 2460 °C (lit.)
Dichte 2.7 g/mL at 25 °C (lit.)
Dampfdruck 0.13-1300Pa at 974℃
Flammpunkt 400°C
storage temp.  Flammables area
Aggregatzustand wire
Farbe Yellow
Wichte 2.702 (Water=1)
Geruch (Odor) Odorless
PH 0.5 (H2O, 20°C)
Widerstand (resistivity) 2.6548 μΩ-cm
Wasserlöslichkeit Insoluble in water.
Sensitive  Moisture Sensitive
Merck  13,321 / 13,321
Expositionsgrenzwerte TLV-TWA 10 mg/m3 (Al dust), 5 mg/m3 (pyrophoric Al powder and welding fumes), 2 mg/m3 (soluble Al salts and alkyls) (ACGIH).
Stabilität Stable. Powder is flammable. Reacts very exothermically with halogens. Moisture and air sensitive. Incompatible with strong acids, caustics, strong oxidizing agents, halogenated hydrocarbons.
CAS Datenbank 7429-90-5(CAS DataBase Reference)
NIST chemische Informationen Aluminum(7429-90-5)
EPA chemische Informationen Aluminum (7429-90-5)

Sicherheit

Kennzeichnung gefährlicher F,Xi,Xn,N
R-Sätze: 17-15-36/38-10-67-65-62-51/53-48/20-38-11-50
S-Sätze: 7/8-43A-43-26-62-61-36/37-33-29-16-9
RIDADR  1396
WGK Germany  3
RTECS-Nr. BD0330000
Selbstentzündungstemperatur 400 °C
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  76032000
Giftige Stoffe Daten 7429-90-5(Hazardous Substances Data)
Toxizität An element that is abundant (about 8%) in the crust of the earth. Aluminum appears to have no biological function and, from the point of view of acute toxicity, is essentially non-toxic. Because it is primarily eliminated by excretion, people with compromised kidney function may accumulate the metal. In kidney dialysis patients, this is a particular problem because the dialyzing solution may contain high concentrations of aluminum. This condition (dialysis encephalopathy or dialysis dementia) has symptoms that include impaired memory, EEG changes, dementia, aphasia, ataxia, and convulsions.One possible mechanism of toxicity may be inhibition of hexokinases in the brain. The chelating agent deferoxamine has been used successfully in treating this condition.Aluminum is one of the primary toxicants leached into surface water (and, therefore, water supplies) by acid deposition. The connection between aluminum and Alzheimers disease is controversial and many investigators believe there is no connection.

Gefahreninformationscode (GHS)

Aluminum Chemische Eigenschaften,Einsatz,Produktion Methoden