4. First Aid Measures
Inhalation: Irritation caused by dust: Fresh air.
Skin contact: Wash skin with water and/or a mild detergent.
Eye contact: Rinse eyes with water/saline solution. See a physician on persistent feeling of discomfort.
Ingestion: Remove the person affected from dust-exposed area. See inhalation.
5. Fire Fighting Measures
Extinguishing media: Dry sand, CO2 or dry powder.
Lump silicon is not combustible. Dusts of silicon with particle diameter < 75 mm can be ignited and will propagate flame.
Silicon-dust suspended in air may under certain conditions cause dust explosions. (See section 10).
6. Accidental Release Measures
Avoid handling that generates dust build-up. Released material should be collected in suitable containers. Dry dust can be vacuumed or swept up.
7. Handling and Storage
Handling: Avoid handling that generates dust build-up. (See section 8).
Avoid ignition sources (e.g. welding) in areas with high dust concentrations. Addition of wet material to molten metal may cause explosions. (See section 10).
Storage: Keep product dry.
8. Exposure Controls/Personal Protection
A. Occupational exposure controls
Eye protection, eye flushing facilities and protective gloves. Ensure good ventilation. Wear a particulate respirator according in areas of inadequate ventilation.
Occupational Exposure Limits (OEL):
8 hr TWA 10 minute STEL
ppm mg/m3 ppm mg/m3
Total inhalable dust - 10 - -
Respirable dust - 4 - -
B. Environmental exposure controls
See Section 6, 7 and 12.
Limit values ambient air
Averaging time Limit value By date
PM10* 24 Hrs 50 μg/m3 1 January 2006
PM10 Calendar year 40 μg/m3 1 January 2006
* not to be exceeded more than 60 times a calendar year