International Chemical Safety Cards 2,2-DICHLOROPROPIONIC ACID ICSC: 1509 Dalapon alpha,alpha-Dichloropropionic acid C3H4Cl2O2 Molecular mass: 143.0 ICSC #    1509 CAS #     75-99-0 RTECS # UF0690000 EC #         607-162-00-7 November 25, 2003 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Gives off irritating or toxic fumes (or gases) in a fire. In case of fire in the surroundings: use appropriate extinguishing media. EXPLOSION EXPOSURE  •INHALATION Burning sensation. Cough. Sore throat. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Refer for medical attention.  •SKIN Redness. Pain. Protective gloves. Remove contaminated clothes. Rinse skin with plenty of water or shower.  •EYES Redness. Pain. Blurred vision. Safety goggles 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 Burning sensation. Diarrhoea. Nausea. Vomiting. Do not eat, drink, or smoke during work. Give plenty of water to drink. Do NOT induce vomiting. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING If liquid: collect leaking and spilled liquid in sealable containers as far as possible. If solid: sweep spilled substance into containers. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. Personal protection: P2 filter respirator for harmful particles. Separated from food and feedstuffs . Dry. Well closed. Do not transport with food and feedstuffs. Xn symbol R: 22-38-41-52/53 S: 2-26-39-61 SEE IMPORTANT INFORMATION ON BACK ICSC: 1509 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 2,2-DICHLOROPROPIONIC ACID ICSC: 1509 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: HYGROSCOPIC WHITE SOLID IN VARIOUS FORMS OR COLOURLESS LIQUID PHYSICAL DANGERS: CHEMICAL DANGERS: Attacks aluminium, copper and their alloys. OCCUPATIONAL EXPOSURE LIMITS: TLV: (Inhalable fraction) 5 mg/m³ as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2004). MAK: IIb (not established but data is available) (DFG 2004). ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation and by ingestion . 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 is irritating to the eyes , the skin and the respiratory tract . EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point: 190°C Melting point: 20°C Relative density (water = 1): 1.40 Solubility in water, g/100 ml at 25°C: 90 Octanol/water partition coefficient as log Pow: 0.76 ENVIRONMENTAL DATA The substance is harmful to aquatic organisms. N O T E S Card has been partly updated in April 2005. See section Occupational Exposure Limits. ADDITIONAL INFORMATION ICSC: 1509 2,2-DICHLOROPROPIONIC ACID (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.