International Chemical Safety Cards VINYLIDENE FLUORIDE ICSC: 0687 1,1-Difluoroethylene 1,1-Difluoroethene R1132a Vinylidene difluoride C2H2F2 / CH2=CF2 Molecular mass: 64.04 (cylinder) ICSC #    0687 CAS #     75-38-7 RTECS # KW0560000 UN #        1959 October 08, 1997 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Extremely flammable. Explosive. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames, NO sparks, and NO smoking. Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out; in other cases extinguish with powder, carbon dioxide. EXPLOSION Gas/air mixtures are explosive. Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding) if in liquid state. Use non-sparking handtools. In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position. EXPOSURE  •INHALATION Ventilation. Fresh air, rest.  •SKIN ON CONTACT WITH LIQUID: FROSTBITE. Cold-insulating gloves. Protective clothing. ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention.  •EYES Safety goggles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Evacuate danger area! Consult an expert! Ventilation. NEVER direct water jet on liquid. (Extra personal protection: complete protective clothing including self-contained breathing apparatus). Fireproof. Separated from incompatible materials: See Chemical Dangers. Store only if stabilized. R: S: UN Hazard Class: 2.1 SEE IMPORTANT INFORMATION ON BACK ICSC: 0687 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards VINYLIDENE FLUORIDE ICSC: 0687 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS COMPRESSED LIQUEFIED GAS , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: The gas is heavier than air and may travel along the ground; distant ignition possible, and may accumulate in low ceiling spaces causing deficiency of oxygen. As a result of flow, agitation, etc., electrostatic charges can be generated. CHEMICAL DANGERS: The substance can form explosive peroxides. The substance may polymerize releasing a large amount of heat, with fire or explosion hazard. Heating may cause violent combustion or explosion. The substance decomposes on heating or on burning producing toxic and corrosive fumes including hydrogen fluoride, fluorine and fluorides. Reacts violently with oxidants and many other materials, causing fire and explosion hazard. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. OSHA PEL: none NIOSH REL: TWA 1 ppm C 5 ppm use 1910.1017 NIOSH IDLH: No data ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation. INHALATION RISK: A harmful concentration of this gas in the air will be reached very quickly on loss of containment. EFFECTS OF SHORT-TERM EXPOSURE: Rapid evaporation of the liquid may cause frostbite. The substance may cause effects on the central nervous system. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point: -83°C Melting point: -144°C Relative density (water = 1): 0.6 Solubility in water: none Relative vapour density (air = 1): 2.2 Flash point: Flammable Gas Auto-ignition temperature: 640°C Explosive limits, vol% in air: 5.5-21.3 Octanol/water partition coefficient as log Pow: 1.24 ENVIRONMENTAL DATA N O T E S High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death. Check oxygen content before entering area. Vapours are uninhibited and may form polymers in the vents or flame arresters causing blockage. Do NOT use in the vicinity of a fire or a hot surface, or during welding. Check for peroxides prior to distillation; eliminate if found. Turn leaking cylinder with the leak up to prevent escape of gas in liquid state. Halocarbon 1132A is a trade name. Also consult ICSC #0083 (Vinylidene chloride). Transport Emergency Card: TEC (R)-683 NFPA Code: H1; F4; R2; ADDITIONAL INFORMATION ICSC: 0687 VINYLIDENE FLUORIDE (C) IPCS, CEC, 1994

IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.