MATERIAL SAFETY DATA SHEETSECTION 1. PRODUCT IDENTIFICATIONPRODUCT NAME: Sulfur Hexafluoride CHEMICAL NAME: Sulfur Hexafluoride FORMULA: SF6MANUFACTURER: Air Products and Chemicals, Inc.7201 Hamilton BoulevardAllentown, PA 18195-1501PRODUCT INFORMATION: (800) 752-1597MSDS NUMBER: 1014 REVISION: 5 REVIEW DATE: May 1999 REVISION DATE: May 1999SECTION 2. HAZARDOUS COMPONENTSSulfur Hexafluoride is sold as pure product >99%CAS NUMBER: 2551-62-4EXPOSURE LIMITS:OSHA: PEL-TWA = 1000 ppm ACGIH: TLV-TWA = 1000 ppm NIOSH: None established SECTION 3. HAZARD IDENTIFICATIONEMERGENCY OVERVIEWSulfur Hexafluoride is a nonflammable, liquefied compressed gas packaged in cylinders under its own vapor pressure of 310.2 psia at 70°F (21.1°C). It can cause rapid suffocation when concentrations are sufficient to reduce oxygen levels below 19.5%. Contact with liquid may cause frostbite. Avoid breathinggas. Self contained breathing apparatus (SCBA) may be required by rescue workers. EMERGENCY TELEPHONE NUMBERS(800) 523-9374 Continental U.S., Canada, and Puerto Rico(610) 481-7711 other locationsACUTE POTENTIAL HEALTH EFFECTS:ROUTES OF EXPOSURE:EYE CONTACT: Contact with liquid or cold vapor can cause freezing of tissue. INGESTION: Ingestion is not a likely route of exposure for Sulfur Hexafluoride. INHALATION: Sulfur Hexafluoride is an asphyxiant. Exposure to an oxygen deficient atmosphere (less than 19.5%) may cause dizziness, drowsiness, nausea, vomiting, excess salivation, diminished mental alertness, loss of consciousness and death. Exposure to atmospheres containing less than 12% oxygen will bring about unconsciousness without warning and so quickly that the individuals cannot help themselves. SKIN CONTACT: Contact with liquid or cold vapor can cause frostbite.TARGET ORGANS: NoneMSDS # 1014 Sulfur Hexafluoride Page 1 of 5Pub # 320-728POTENTIAL HEALTH EFFECTS OF REPEATED EXPOSURE:ROUTE OF ENTRY: NoneSYMPTOMS: NoneMEDICAL CONDITIONS AGGRAVATED BY OVEREXPOSURE: None CARCINOGENICITY: Sulfur Hexafluoride is not listed as a carcinogen or potential carcinogen by NPT, IARC, or OSHA Subpart Z. SECTION 4. FIRST AID MEASURESEYE CONTACT: Flush eyes with plenty of lukewarm water for several minutes. Seek medical attention immediately. INGESTION: Ingestion is not a likely route of exposure for Sulfur Hexafluoride.INHALATION: Remove person to fresh air. If not breathing, administer artificial respiration. If breathingis difficult, administer oxygen. Obtain prompt medical attention.SKIN CONTACT: If liquid Sulfur Hexafluoride comes in contact with skin, remove contaminated clothingand flush with plenty of lukewarm water for several minutes. Seek medical attention immediately.NOTES TO PHYSICIAN: There is no specific antidote. Treatment for overexposure should be directed at the control of symptoms and the clinical condition.SECTION 5. FIRE FIGHTING MEASURESFLASH POINT : AUTOIGNITION: FLAMMABLE RANGE: Not applicable Nonflammable NonflammableEXTINGUISHING MEDIA: Sulfur Hexafluoride is nonflammable and does not support combustion. Use extinguishing media appropriate for the surrounding fire. SPECIAL FIRE FIGHTING INSTRUCTIONS: Evacuate all personnel from area. If possible, remove cylinders from fire area or cool with water. Self-contained breathing apparatus (SCBA) may be required.UNUSUAL FIRE AND EXPLOSION HAZARDS: Most cylinders are designed to vent contents when exposed to elevated temperatures. Pressure in a cylinder can build up due to heat and it may rupture if pressure relief devices should fail to function.HAZARDOUS COMBUSTION PRODUCTS: Sulfur Hexafluoride will not burn, however when exposed to high temperatures (greater than 400 °F) or open flame it can decompose and possibly form other compounds that may be highly toxic. These include sulfur dioxide, hydrogen fluoride, hydrogen sulfide, sulfur tetrafluoride and other sulfur fluoride compounds.SECTION 6. ACCIDENTAL RELEASE MEASURESSTEPS TO BE TAKEN IF MATERIAL IS RELEASED OR SPILLED: Evacuate immediate area. Increase ventilation to release area and monitor oxygen level. Use appropriate protective equipment (SCBA). Shut off source of leak if possible. Isolate any leaking cylinder. If leak is from container, pressure relief device or its valve, contact your supplier. If leak is in user’s system, close cylinder valve and vent pressure before attempting repairs. SECTION 7. HANDLING AND STORAGESTORAGE: Store cylinders in a well-ventilated, secure area, protected from the weather. Cylinders should be stored upright with valve outlet seals and valve protection caps in place. Do not allow storage temperature to exceed 125 °F (52 °C). Storage should be away from heavily traveled areas and emergency exits. Full and empty cylinders should be segregated. Use a first-in, first-out inventory system to prevent full containers from being stored for long periods of time.HANDLING: Do not drag, roll, slide or drop cylinder. Use a suitable hand truck designed for cylinder movement. Never attempt to lift a cylinder by its cap. Secure cylinders at all times while in use. Use a separate pressure reducing regulator to safely discharge gas from cylinder. Use a check valve to prevent MSDS # 1014 Sulfur Hexafluoride Page 2 of 5Pub # 320-728reverse flow into cylinder. Use piping and equipment adequately designed to withstand pressures to be encountered. If liquid product is being used, ensure steps have been taken to prevent entrapment of liquid in closed systems. The use of pressure relief devices may be necessary. Never apply flame or localized heat directly to any part of the cylinder. Do not allow any part of the cylinder to exceed 125 °F (52 °C). Once cylinder has been connected to process, open cylinder valve slowly and carefully. If user experiences any difficulty operating cylinder valve, discontinue use and contact supplier. Never insert anobject (e.g., wrench, screwdriver, etc.) into valve cap openings. Doing so may damage valve causing a leak to occur. Use an adjustable strap-wrench to remove over-tight or rusted caps. Sulfur Hexafluoride is compatible with all common materials of construction. SPECIAL REQUIREMENTS: Always store and handle compressed gases in accordance with Compressed Gas Association, Inc. (telephone 703-412-0900) pamphlet CGA P-1, Safe Handling of Compressed Gases in Containers. Local regulations may require specific equipment for storage or