International Chemical Safety Cards NICKEL CARBONYL ICSC: 0064 Nickel tetracarbonyl C4NiO4 / Ni(CO)4 Molecular mass: 170.7 ICSC #    0064 CAS #     13463-39-3 RTECS # QR6300000 UN #        1259 EC #         028-001-00-1 October 18, 2001 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Highly flammable. NO open flames, NO sparks, and NO smoking. NO contact with oxidants. Powder, water spray, foam, carbon dioxide. EXPLOSION Vapour/air mixtures are explosive. Risk of fire and explosion upon heating above 60°C. Liquid and vapour flash in direct sunlight. Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling. In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position. EXPOSURE AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!  •INHALATION Headache. Dizziness. Nausea. Vomiting. Cough. Shortness of breath. Blue skin. Symptoms may be delayed (see Notes). Closed system and ventilation. Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.  •SKIN Protective gloves. Protective clothing. Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.  •EYES Face shield or eye protection in combination with breathing protection. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION See Notes. Do not eat, drink, or smoke during work. Wash hands before eating. Rinse mouth. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Evacuate danger area! Consult an expert! Remove all ignition sources. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer. Do NOT let this chemical enter the environment. (Extra personal protection: complete protective clothing including self-contained breathing apparatus.) Fireproof. Separated from strong oxidants, strong acids, food and feedstuffs . Cool. Keep in the dark. Keep under inert gas. Airtight. Do not transport with food and feedstuffs. Severe marine pollutant. Note: E F symbol T+ symbol N symbol R: 61-11-26-40-50/53 S: 53-45-60-61 UN Hazard Class: 6.1 UN Subsidiary Risks: 3 UN Packing Group: I SEE IMPORTANT INFORMATION ON BACK ICSC: 0064 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 NICKEL CARBONYL ICSC: 0064 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: VOLATILE COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: The vapour is heavier than air and may travel along the ground; distant ignition possible. CHEMICAL DANGERS: May explode on heating at 60°C. The substance may spontaneously ignite on contact with air. The substance decomposes on contact with acids producing highly toxic carbon monoxide (see ICSC 0023). Reacts violently with oxidants causing fire and explosion hazard. Oxidizes in air forming deposits which become peroxidized causing fire hazard. OCCUPATIONAL EXPOSURE LIMITS: TLV (as Ni): 0.05 ppm (as TWA) (ACGIH 2001). OSHA PEL: TWA 0.001 ppm (0.007 mg/m3) NIOSH REL: Ca TWA 0.001 ppm (0.007 mg/m3) See Appendix A NIOSH IDLH: Potential occupational carcinogen 2 ppm ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation and through the skin. INHALATION RISK: A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: The substance is irritating to the respiratory tract . The substance may cause effects on the central nervous system. Inhalation of vapours may cause lung oedema (see Notes). Exposure may result in death. The effects may be delayed. Medical observation is indicated. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged inhalation exposure may cause asthma. This substance is possibly carcinogenic to humans. PHYSICAL PROPERTIES Boiling point: 43°C Melting point: -19°C Relative density (water = 1): 1.3 Solubility in water: none Vapour pressure, kPa at 25.8°C: 53 Relative vapour density (air = 1): 5.9 Relative density of the vapour/air-mixture at 20°C (air = 1): 3.0 Flash point: <-20°C c.c. Auto-ignition temperature: 60°C Explosive limits, vol% in air: 2-34 ENVIRONMENTAL DATA This substance may be hazardous to the environment; special attention should be given to water organisms. N O T E S No reported cases of intoxication by ingestion. Depending on the degree of exposure, periodic medical examination is suggested. The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Immediate administration of an appropriate spray, by a doctor or a person authorized by him/her, should be considered. The symptoms of asthma often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Anyone who has shown symptoms of asthma due to this substance should avoid all further contact with this substance. The odour warning when the exposure limit value is exceeded is insufficient. Rinse contaminated clothes (fire hazard) with plenty of water. NFPA Code: H 4; F 3; R 3; Transport Emergency Card: TEC (R)-61GTF1-I ADDITIONAL INFORMATION ICSC: 0064 NICKEL CARBONYL (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.