International Chemical Safety Cards CADMIUM OXIDE ICSC: 0117 Cadmium monoxide CdO Molecular mass: 128.4 ICSC #    0117 CAS #     1306-19-0 RTECS # EV1925000 UN #        2570 (Cadmium compounds) EC #         048-002-00-0 April 20, 1994 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire. In case of fire in the surroundings: all extinguishing agents allowed. EXPLOSION EXPOSURE PREVENT DISPERSION OF DUST! AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!  •INHALATION Cough. Laboured breathing. Shortness of breath. Symptoms may be delayed (see Notes). Closed system and ventilation. Fresh air, rest. Half-upright position. Refer for medical attention.  •SKIN Redness. Protective gloves. Remove contaminated clothes. Rinse skin with plenty of water or shower.  •EYES Redness. Pain. Safety goggles, or eye protection in combination with breathing protection if powder. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Abdominal cramps. Diarrhoea. Nausea. Vomiting. Do not eat, drink, or smoke during work. Wash hands before eating. Rinse mouth. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Vacuum spilled material. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. (Extra personal protection: P3 filter respirator for toxic particles). Separated from acids, food and feedstuffs, magnesium. Unbreakable packaging; put breakable packaging into closed unbreakable container. Do not transport with food and feedstuffs. Severe marine pollutant. Note: E T symbol R: 49-22-48/23/25 S: 53-45 UN Hazard Class: 6.1 SEE IMPORTANT INFORMATION ON BACK ICSC: 0117 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 CADMIUM OXIDE ICSC: 0117 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: ODOURLESS, BROWN CRYSTALS OR AMORPHOUS POWDER. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating producing toxic fumes of cadmium. Reacts violently with magnesium when heated causing fire and explosion hazard. OCCUPATIONAL EXPOSURE LIMITS: TLV: 0.01 mg/m3 (as TWA) (as Cd); total dust A2 (ACGIH 1993-1994). TLV (as TWA): 0.002 mg/m3 (as Cd); respirable dust A2 (ACGIH 1993-1994). NIOSH REL: Ca See Appendix A *Note: The REL applies to all Cadmium compounds (as Cd). NIOSH IDLH: Potential occupational carcinogen 9 mg/m3 (as Cd) ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. INHALATION RISK: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered. EFFECTS OF SHORT-TERM EXPOSURE: The substance irritates the eyes and the respiratory tract. Inhalation of the aerosol may cause lung oedema (see Notes). Exposure far above OEL may result in death. The effects may be delayed. Medical observation is indicated. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Lungs may be affected by repeated or prolonged exposure. The substance may have effects on the kidneys and lungs , resulting in kidney impairment and tissue lesions. This substance is probably carcinogenic to humans. Animal tests show that this substance possibly causes toxic effects upon human reproduction. PHYSICAL PROPERTIES Sublimation point: (crystals) 1559°C Melting point (decomposes): 900-1000°C (amorphous)°C Relative density (water = 1): 6.95 (amorphous); 8.15 (crystals) Solubility in water: none ENVIRONMENTAL DATA In the food chain important to humans, bioaccumulation takes place, specifically in plants and seafood. It is strongly advised not to let the chemical enter into the environment because it persists in the environment. N O T E S Depending on the degree of exposure, periodic medical examination is indicated. 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. Do NOT take working clothes home. Transport Emergency Card: TEC (R)-61G11b ADDITIONAL INFORMATION ICSC: 0117 CADMIUM OXIDE (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.