Arsen
Bezeichnung:Arsen
CAS-Nr7440-38-2
Englisch Name:Arsenic
CBNumberCB2761163
SummenformelAsH3
Molgewicht77.95
MOL-Datei7440-38-2.mol
Synonyma
Arsen
Graues Arsen
Arsen physikalisch-chemischer Eigenschaften
Schmelzpunkt | 817 °C(lit.) |
Siedepunkt | 613 °C(lit.) |
Dichte | 5.727 g/mL at 25 °C(lit.) |
Dampfdruck | 1Pa at 280℃ |
Löslichkeit | insoluble in H2O |
Aggregatzustand | powder |
Farbe | Silver to black |
Wichte | 5.727 |
Geruch (Odor) | Odourless |
Widerstand (resistivity) | 33.3 μΩ-cm |
Wasserlöslichkeit | insoluble |
Sensitive | Air Sensitive |
Merck | 13,802 |
Expositionsgrenzwerte | TLV-TWA 0.2 mg(As)/m3 (ACGIH), 0.5 mg (As)/m3 (MSHA), 0.01 mg(As)m3 (OSHA); ceiling 0.002 mg(As)/m3/15 min (NIOSH); carcinogenicity: Human Sufficient Evidence (IARC). |
Stabilität | Stable. Incompatible with acids, oxidizing agents, halogens. Heat and air-sensitive. |
CAS Datenbank | 7440-38-2(CAS DataBase Reference) |
IARC | 1 (Vol. 23, Sup 7, 100C) 2012 |
NIST chemische Informationen | Arsenic(7440-38-2) |
Kennzeichnung gefährlicher | T,N |
R-Sätze: | 23/25-50/53-36/38-22-45-52/53-51/53 |
S-Sätze: | 20/21-28-45-60-61-26-53 |
RIDADR | UN 1558 6.1/PG 2 |
WGK Germany | 3 |
RTECS-Nr. | CG0525000 |
F | 10 |
TSCA | Yes |
HazardClass | 6.1 |
PackingGroup | II |
HS Code | 28048000 |
Giftige Stoffe Daten | 7440-38-2(Hazardous Substances Data) |
Toxizität | Human exposure occurs occupationally and via food, tobacco smoke, ambient air, and water. Three major groups of arsenic compounds have been defined on the basis of biological considerations: inorganic arsenicals; organic arsenicals; and arsine (gas). The comparative toxicity of these groups is dependent upon the route of exposure and their solubilities; the more quickly absorbed compounds have lower LD50. Arsenic is readily absorbed by the respiratory and gastrointestinal systems and is concentrated in the skin, hair, and nails (Aldrich-Mees’ lines). The cellular toxicity of arsenic is related to reactions with SH-containing mitochondrial enzymes that result in impaired respiration. Arsenic may also compete with phosphate during oxidative phosphorylation. |
IDLA | 5 mg As/m3 |
Arsen Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
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