砷化氢 Detection
Formula AsH₃ · CAS 7784-42-1 · 剧毒 / 易燃
Hazards & Toxic Symptoms
Arsine is a colorless, highly toxic gas with a strong garlic odor. It can cause hemolytic anemia and kidney failure. Exposure to 10 ppm for 30 minutes can be fatal. It is the top hazard in the semiconductor industry.
Occupational Exposure Limits (GBZ 2.1-2019)
| PC-TWA (Time-Weighted Average) | 0.03 mg/m³ |
|---|---|
| IDLH (Immediately Dangerous to Life or Health) | 3 ppm |
| LEL (Lower Explosive Limit) | 5.1% |
| UEL (Upper Explosive Limit) | 78% |
⚠️ Actual alarm thresholds depend on on-site risk assessment. ⚙️ Use the GB Alarm Calculator →
Typical Application Scenarios
- Semiconductor gallium arsenide (GaAs) epitaxy
- Photovoltaic (CIGS)
- By-products of chemical metal smelting
Detection Principle / Recommended Sensors
Electrochemical sensor
Common Range：0-1 ppm
📦 YOURUIAN Recommended Products
Matching product categories: 砷化氢 detector 砷化氢 analyzer