International Chemical Safety Cards 1-CHLORO-3,4-DINITROBENZENE ICSC: 0722 1,2-Dinitro-5-chlorobenzene C6H3Cl(NO2)2 Molecular mass: 202.6 ICSC #    0722 CAS #     610-40-2 RTECS # UN #        1577 EC #         610-003-00-4 October 10, 1997 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames. Powder, water spray, foam, carbon dioxide. EXPLOSION EXPOSURE PREVENT DISPERSION OF DUST!  •INHALATION Blue lips or finger nails. Blue skin. Headache. Dizziness. Nausea. Confusion. Laboured breathing. Convulsions. Unconsciousness. Local exhaust or breathing protection. Fresh air, rest. Artificial respiration if indicated. Refer for medical attention.  •SKIN MAY BE ABSORBED! (Further see Inhalation). Protective gloves. Protective clothing. First rinse with plenty of water, then remove contaminated clothes and rinse again. Refer for medical attention.  •EYES Face shield. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION (Further see Inhalation). Do not eat, drink, or smoke during work. Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). 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. (Extra personal protection: chemical protection suit including self-contained breathing apparatus). Separated from strong oxidants, strong bases, food and feedstuffs . Well closed. Keep in a well-ventilated room. Do not transport with food and feedstuffs. Marine pollutant. Note: C T symbol N symbol R: 23/24/25-33-50/53 S: 1/2-28-36/37-45-60-61 UN Hazard Class: 6.1 UN Packing Group: II SEE IMPORTANT INFORMATION ON BACK ICSC: 0722 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 1-CHLORO-3,4-DINITROBENZENE ICSC: 0722 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: YELLOW CRYSTALS PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating producing toxic and corrosive fumes . Reacts with strong oxidants and strong bases . OCCUPATIONAL EXPOSURE LIMITS: TLV not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation and through the skin. INHALATION RISK: No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: The substance may cause effects on the central nervous system , cardiovascular system and blood , resulting in formation of methaemoglobin. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the central nervous system , cardiovascular system and blood , resulting in formation of methaemoglobin. PHYSICAL PROPERTIES Boiling point (decomposes): 315°C Melting point: 40-41°C Relative density (water = 1): 1.687 Flash point: >110°C ENVIRONMENTAL DATA N O T E S Depending on the degree of exposure, periodic medical examination is suggested. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken. Transport Emergency Card: TEC (R)-94A ADDITIONAL INFORMATION ICSC: 0722 1-CHLORO-3,4-DINITROBENZENE (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.