Selendioxid
Bezeichnung:Selendioxid
CAS-Nr7446-08-4
Englisch Name:Selenium dioxide
CBNumberCB8183848
SummenformelO2Se
Molgewicht110.96
MOL-Datei7446-08-4.mol
Synonyma
Selendioxid
Selenigs?ureanhydrid
Selenoxid
Selendioxid physikalisch-chemischer Eigenschaften
Schmelzpunkt | 315 °C (subl.)(lit.) | ||||||||||||||
Siedepunkt | 684.9 °C(lit.) | ||||||||||||||
Dichte | 4.81 g/mL at 25 °C(lit.) | ||||||||||||||
Dampfdruck | 1 mm Hg ( 157 °C) | ||||||||||||||
Brechungsindex | nD20 <1.76 | ||||||||||||||
Flammpunkt | 315°C | ||||||||||||||
storage temp. | Store below +30°C. | ||||||||||||||
Löslichkeit | H2O: soluble | ||||||||||||||
Aggregatzustand | powder | ||||||||||||||
Farbe | white | ||||||||||||||
Wichte | 3.95 | ||||||||||||||
PH | 2 (10g/l, H2O, 20℃) | ||||||||||||||
Wasserlöslichkeit | 38.4 g/100 mL (14 ºC) | ||||||||||||||
Sublimation | 315 ºC | ||||||||||||||
Merck | 14,8434 | ||||||||||||||
crystal system | square | ||||||||||||||
Space group | P42/mbc | ||||||||||||||
Lattice constant |
|
Kennzeichnung gefährlicher | T,N,Xn |
R-Sätze: | 36/38-50/53-33-23/25-51/53-20/22 |
S-Sätze: | 26-61-60-45-28A-20/21-28 |
RIDADR | UN 3440 6.1/PG 3 |
WGK Germany | 2 |
RTECS-Nr. | VS8575000 |
F | 3 |
TSCA | Yes |
HS Code | 2811 29 90 |
HazardClass | 6.1 |
PackingGroup | II |
Giftige Stoffe Daten | 7446-08-4(Hazardous Substances Data) |
Toxizität | LD50 orally in Rabbit: 68.1 mg/kg |