Hydrogen cyanide (anhydrous)HCN
CAS-No.: | 74-90-8 |
|---|---|
UN-No.: | 1051 |
EC-No.: | 200-821-6 |
Hazard identification number: | 663 (RID) |
Hazard signs
*Source: GESTIS Substance Database, https://gestis-database.dguv.de
Occupational exposure limit
TRGS 900 (DE/INT)
- MAK (ppm) 0,9
- MAK (mg/m3) 1
- H: 224
Extremely flammable liquid and vapour.
- H: 300 + 310 + 330
Fatal if swallowed, in contact with skin or if inhaled
- H: 372
Causes damage to organs (state all organs affected, if known) through prolonged or repeated exposure (state route of exposure if it is conclusively
proven that no other routes of exposure cause the hazard)
- H: 410
Very toxic to aquatic life with long lasting effects
- P: 210
Keep away from heat/
sparks/open flames/hot
surfaces. — No smoking.
- P: 260
Do not breathe dust/fume/gas/mist/vapours/spray
- P: 262
Do not get in eyes, on skin, or on clothing.
- P: 273
Avoid release to the environment.
- P: 280
Wear protective gloves/protective clothing/eye protection/face protection.
- P: 303 + 361 + 353
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
- P: 304 + 340
IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
- P: 310
Immediately call a POISON CENTER/ doctor/...
- P: 501
No statement for this group.
No GHS Classification available at the moment.
*Source: GESTIS Substance Database, https://gestis-database.dguv.de
Melting point:
-13 °C Boiling Point:
26 °C Density (at 20 °C, if not notified otherwise):
0,69 g/cm3Ionization:
13.60 ± 0.01 eVIgnition Temperature:
535 °C Vapour Pressure (at 20 °C, if not notified otherwise):
817 hPaLower Explosive Limit:
5.4 Vol.-%Upper Explosive Limit:
46.6 Vol.-%
*Source: GESTIS Substance Database, https://gestis-database.dguv.de
Also known as:
- cyanide
- Formic anammonide
- Formonitrile
- Hydrocyanic acid
- Methanenitrile
- Prussic acid
- toxic twins
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