Dihydrogen selenide
Flame
Gas Cylinder
Skull and Crossbones
Exclamation Mark
Health Hazard
Hazard Statements
| Code | Statement | Hazard Class |
|---|---|---|
H220 |
Extremely flammable gas | Flammable gases |
H319 |
Causes serious eye irritation | Serious eye damage/eye irritation |
H330 |
Fatal if inhaled | Acute toxicity, inhalation |
H370 |
Causes damage to organs | Specific target organ toxicity, single exposure |
H372 |
Causes damage to organs through prolonged or repeated exposure | Specific target organ toxicity, repeated exposure |
Precautionary Statements
| Code | Statement |
|---|---|
P203 |
Obtain, read and follow all safety instructions before use. |
P210 |
Keep away from heat, hot surface, sparks, open flames and other ignition sources. No smoking. |
P222 |
Do not allow contact with air. |
P260 |
Do not breathe dust/fume/gas/mist/vapors/spray. |
P264 |
Wash hands [and ...] thoroughly after handling. |
P264+P265 |
Wash hands [and ...] thoroughly after handling. Do not touch eyes. |
P270 |
Do not eat, drink or smoke when using this product. |
P271 |
Use only outdoors or in a well-ventilated area. |
P280 |
Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... |
P284 |
[In case of inadequate ventilation] Wear respiratory protection. |
P304+P340 |
IF INHALED: Remove person to fresh air and keep comfortable for breathing. |
P305+P351+P338 |
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do - continue rinsing. |
P308+P316 |
IF exposed or concerned: Get emergency medical help immediately. |
P316 |
Get emergency medical help immediately. |
P319 |
Get medical help if you feel unwell. |
P320 |
Specific treatment is urgent (see ... on this label). |
P321 |
Specific treatment (see information on this label and safety datasheet)). |
P337+P317 |
If eye irritation persists: Get medical help. |
P377 |
Leaking gas fire: Do not extinguish, unless leak can be stopped safely. |
P381 |
In case of leakage, eliminate all ignition sources. |
P403 |
Store in a well-ventilated place. |
P403+P233 |
Store in a well-ventilated place. Keep container tightly closed. |
P405 |
Store locked up. |
P501 |
Dispose of contents/container to ... |
Exposure Limits
| OSHA PEL | 0.05 ppm |
| NIOSH REL | 0.05 ppm |
| NIOSH IDLH | 1 ppm |
| Skin Notation | Yes — can be absorbed through skin |
Physical Properties
Colorless gas with an odor resembling decayed horseradish.
| Boiling Point | -42°F |
| Vapor Pressure | 9.5 atm at 70°F |
Target Organs
eye, nose, and throat irritation; pulmonary irritation in animals
Synonyms
selenium dihydride; selenium hydride
Data Sources
- GHS Classification: PubChem CID 533
- OSHA PEL: OSHA Occupational Chemical Database
- NIOSH REL/IDLH: NIOSH Pocket Guide
Disclaimer: This information is compiled from public regulatory databases for reference only. It does not replace the manufacturer's Safety Data Sheet (SDS). Always consult the official SDS for your specific product before handling chemicals.
See something wrong? Report a data issue.