International Chemical Safety Cards DIMETHYLAMINE ICSC: 0260 DIMETHYLAMINE N-Methyl methanamine (cylinder) (CH3)2NH Molecular mass: 45.1 CAS # 124-40-3 RTECS # IP8750000 ICSC # 0260 UN # 1032 (anhydrous) EC # 612-001-00-9 TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Extremely flammable. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames, NO sparks, and NO smoking. Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out; in other cases extinguish with powder, carbon dioxide. EXPLOSION Gas/air mixtures are explosive. Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling. Use reduced-sparking handtools. In case of fire: keep cylinder cool by spraying with water. EXPOSURE STRICT HYGIENE! INHALATION Abdominal pain. Burning sensation. Cough. Diarrhoea. Laboured breathing. Shortness of breath. Sore throat. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Half-upright position. Artificial respiration if indicated. Refer for medical attention. SKIN Redness. Skin burns. Pain. Cold-insulating gloves. Protective clothing. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention. EYES Redness. Pain. Blurred vision. Severe deep burns. 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 Rinse mouth. Do NOT induce vomiting. Give plenty of water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Evacuate danger area! Consult an expert! Ventilation. Do NOT wash away into sewer. Remove with fine water spray (extra personal protection: complete protective clothing including self-contained breathing apparatus). Fireproof. Separated from incompatible materials (see Chemical Dangers). Cool. F symbol Xi symbol R: 13-36/37 S: 16-26-29 UN Haz Class: 2.1 SEE IMPORTANT INFORMATION ON BACK ICSC: 0260 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

International Chemical Safety Cards DIMETHYLAMINE ICSC: 0260 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS COMPRESSED LIQUEFIED GAS , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: The gas is heavier than air and may travel along the ground; distant ignition possible. CHEMICAL DANGERS: The substance decomposes on burning producing toxic fumes (nitrogen oxides). The substance is a medium strong base. Reacts violently with strong oxidants, such as chlorine. Reacts violently with mercury causing fire and explosion hazard. Attacks plastics, rubber, and coatings. OCCUPATIONAL EXPOSURE LIMITS (OELs): TLV (as TWA): 10 ppm; 18 mg/m3 (ACGIH 1992-1993). MAK: 10 ppm; 18 mg/m3; (1992). OSHA PEL: TWA 10 ppm (18 mg/m3) NIOSH REL: TWA 10 ppm (18 mg/m3) NIOSH IDLH: 500 ppm ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation and through the skin. INHALATION RISK: A harmful concentration of this gas in the air will be reached very quickly on loss of containment. EFFECTS OF SHORT-TERM EXPOSURE: The vapour is corrosive to the eyes, the skin and the respiratory tract. Inhalation of the substance may cause lung oedema (see Notes). Rapid evaporation of the liquid may cause frostbite. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact with skin may cause dermatitis. PHYSICAL PROPERTIES Boiling point: 7°C Melting point: -92°C Solubility in water, g/100 ml at 20°C: 23.7 Vapour pressure, kPa at 20°C: 206 Relative vapour density (air = 1): 1.56 Flash point: Flammable Gas Auto-ignition temperature: 402°C Explosive limits, vol% in air: 2.8-14.4 Octanol/water partition coefficient as log Pow: -0.38 ENVIRONMENTAL DATA This substance may be hazardous to the environment; special attention should be given to water organisms. NOTES 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 odour warning when the exposure limit value is exceeded is insufficient. Turn leaking cylinder with the leak up to prevent escape of gas in liquid state. Transport Emergency Card: TEC (R)-30G33 NFPA Code: H 3; F 4; R 0; ADDITIONAL INFORMATION ICSC: 0260 DIMETHYLAMINE © IPCS, CEC, 1993

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 IDLH values.