EM-PATCH

Hazardous Ingredients

HAZARDOUS MIXTURES OF OTHER LIQUIDS, SOLIDS, OR GASES % TLV (UNITS) Silicon Dioxide (CAS# 7631-86-9) >1 10 mg/m³ All components of this product are listed on the E.P.A./TSCA inventory of chemical substances. SECTION III – PHYSICAL DATA BOILING POINT F N/A SPECIFIC GRAVITY (H2O = 1) 70 lbs/ft VAPOR PRESSURE (mm. Hg.) N/A PERCENT VOLATILE BY VOLUME (%) 0 VAPOR DENSITY (AIR = 1) N/A EVAPORATION RATE ( =1) N/A SOLUBILITY IN WATER insoluble PH N/A

Appearance/Odor

Grey granules with no odor. SECTION IV – FIRE AND EXPLOSION DATA FLASH POINT (Method Used) FLAMMABLE LIMITS Lel Uel N/A None EXTINGUISHING MEDIA Use extinguishing media suitable for fighting surrounding fire. SPECIAL FIRE FIGHTING PROCEDURES Fire fighters should wear full protective clothing including self-contained respiratory equipment operated in a positive mode. UNUSUAL FIRE AND EXPLOSION HAZARDS None (Continued on reverse side) SECTION V – HEALTH HAZARD DATA THRESHOLD LIMIT VALUE

Principle Routes of Exposure

Inhalation X Skin Contact Other (Specify) 10 mg/m³ (as dust) EFFECTS OF OVEREXPOSURE Eyes - irritation. Inhalation - prolonged or repeated inhalation of dust may cause irritation to nasal and respiratory tracts. EMERGENCY AND FIRST AID PROCEDURE Eyes - flush with copious amounts of water lifting lids and removing contact lenses to ensure complete irrigation - get medical attention. Skin - wash with soap and water. Inhalation - remove to fresh air and assist breathing as necessary - get medical attention.

Medical Conditions Generally Aggravated by Exposure

None Known CARCINOGEN: NTP IARC OTHER 2A SECTION VI – REACTIVITY DATA STABILITY UNSTABLE CONDITIONS TO AVOID STABLE X None INCOMPATIBILITY (Materials to avoid) Hydrofluoric Acid HAZARDOUS DECOMPOSITION PRODUCTS None HAZARDOUS MAY OCCUR CONDITIONS TO AVOID POLYMERIZATION WILL NOT OCCUR X None SECTION VII – SPILL OR LEAK PROCEDURES