International Chemical Safety Cards LEAD(II) OXIDE ICSC: 0288 Lead monoxide Plumbous oxide Lead protoxide Litharge PbO Molecular mass: 223.2 ICSC #    0288 CAS #     1317-36-8 RTECS # OG1750000 UN #        3288 EC #         082-001-00-6 (lead compounds) October 08, 2002 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: use appropriate extinguishing media. EXPLOSION EXPOSURE See EFFECTS OF LONG-TERM OR REPEATED EXPOSURE. AVOID EXPOSURE OF (PREGNANT) WOMEN! PREVENT DISPERSION OF DUST!  •INHALATION Local exhaust or breathing protection. Fresh air, rest.  •SKIN Protective gloves. Remove contaminated clothes. Rinse and then wash skin with water and soap.  •EYES Safety spectacles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Abdominal pain. Nausea. Vomiting. Do not eat, drink, or smoke during work. Wash hands before eating. Rinse mouth. Give plenty of water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. 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 food and feedstuffs and incompatible materials . See Chemical Dangers. Do not transport with food and feedstuffs. Note: A; Note: E T symbol N symbol R: 61-20/22-33-50/53-62 S: 53-45-60-61 UN Hazard Class: 6.1 SEE IMPORTANT INFORMATION ON BACK ICSC: 0288 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 LEAD(II) OXIDE ICSC: 0288 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: RED TO YELLOW CRYSTALS PHYSICAL DANGERS: CHEMICAL DANGERS: Reacts violently with aluminium powder. On heating, toxic fumes are formed. OCCUPATIONAL EXPOSURE LIMITS: TLV: as Pb 0.05 mg/m³; A3; (ACGIH 2002). MAK: as Pb 0.1 mg/m³; Peak limitation category: II(8) Carcinogen category: 3BPregnancy risk group: B (DFG 2002). ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation and by ingestion. INHALATION RISK: A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered. EFFECTS OF SHORT-TERM EXPOSURE: EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the blood , bone marrow , central nervous system , peripheral nervous system and kidneys , resulting in anaemia, encephalopathy (e.g., convulsions), peripheral nerve disease, abdominal cramps and kidney impairment. Causes toxicity to human reproduction or development. PHYSICAL PROPERTIES Boiling point: 1470°C Melting point: 888°C Density: 9.5 g/cm3 Solubility in water: none ENVIRONMENTAL DATA Bioaccumulation of this chemical may occur in plants and in mammals. It is strongly advised that this substance does not enter the environment. N O T E S Depending on the degree of exposure, periodic medical examination is indicated. Do NOT take working clothes home. See ICSC 0052 Lead. Transport Emergency Card: TEC (R)-61GT5-II ADDITIONAL INFORMATION ICSC: 0288 LEAD(II) 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.