1. Evacuate immediately affected areas.

2. Silane is a spontaneous flammable gas. This gas usually causes combustion in contact with air and emits a very thick yellow amorphous silica smoke.

3. Uncontrolled leaks need to be handled by trained personnel according to a pre-prepared plan. A silane leak usually causes a fire.

4. If the pressure is too high or the speed is too fast when the silane is discharged, it will cause a hysteretic explosion. Leaking silane can be very dangerous without spontaneous combustion. Do not approach.

5. If possible, cut off the leaking air source and isolate the leaking cylinder. If the leak cannot be stopped (or access to the valve is not possible), let the cylinder drain in place or move the cylinder to a safe location.

6. In case of leakage from the container and pressure relief valve or other valves, please contact the supplier.

7. If the leak is coming from the user system, turn off the cylinder valve and be sure to relieve pressure and purge with inert gas before repairing.

8. All personnel should be protected and the leakage area should be controlled.

9. All emergency responders should have appropriate protection to avoid exposure to silane. Monitor ambient silane levels. Only when the silane content is within the permitted range (see Part 2) can personnel enter without self-contained breathing apparatus. Before entering, the concentration of flammable gas must be less than 0.14%, which is 10% of silane LEL. Try to close the main valve of the gas before entering.