Natriumcyanid
Bezeichnung:Natriumcyanid
CAS-Nr143-33-9
Englisch Name:Sodium cyanide
CBNumberCB6754927
SummenformelCNNa
Molgewicht49.01
MOL-Datei143-33-9.mol
Synonyma
Natriumcyanid
Blausaures Natrium
Cyannatrium
Natriumcyanid physikalisch-chemischer Eigenschaften
Schmelzpunkt | 563.7 °C(lit.) |
Siedepunkt | 1497°C |
Dichte | 1.6 |
Dampfdichte | 1.7 (vs air) |
Dampfdruck | 1 mm Hg ( 817 °C) |
Flammpunkt | 1500°C |
storage temp. | Poison room |
Löslichkeit | H2O: 1 M at 20 °C, clear, colorless |
pka | 9.36[at 20 ℃] |
Aggregatzustand | Solid |
Farbe | White |
Geruch (Odor) | The dry salts are odorless, but reaction with atmospheric moisture produces HCN, whose bitter almond odor is detectable at 1 to 5 ppm; however, 20 to 60% of the population are reported to be unable to detect the odor of HCN. |
PH | 11.7 (100g/l, H2O, 20°C) |
Säure-Base-Indikators(pH-Indikatoren) | 11-12 |
Wasserlöslichkeit | 37 g/100mL (20 ºC) |
Sensitive | Hygroscopic |
Merck | 14,8605 |
BRN | 3587243 |
Kennzeichnung gefährlicher | T+,N |
R-Sätze: | 26/27/28-32-50/53-48/25 |
S-Sätze: | 7-28-29-45-60-61-28A |
RIDADR | UN 1689 6.1/PG 1 |
OEL | Ceiling: 5 mg/m3 (4.7 ppm) [10-minute] [*Note: The REL also applies to other cyanides (as CN) except Hydrogen cyanide.] |
WGK Germany | 3 |
RTECS-Nr. | VZ7525000 |
TSCA | Yes |
HazardClass | 6.1 |
PackingGroup | I |
HS Code | 28371110 |
Giftige Stoffe Daten | 143-33-9(Hazardous Substances Data) |
Toxizität | LD50 orally in rats: 15 mg/kg (Smyth) |