International Chemical Safety Cards TRIETHYLAMINE ICSC: 0203 N,N-Diethylethanamine C6H15N / (C2H5)3N Molecular mass: 101.2 ICSC #    0203 CAS #     121-44-8 RTECS # YE0175000 UN #        1296 EC #         612-004-00-5 October 10, 2002 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Highly flammable. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames, NO sparks, and NO smoking. Alcohol-resistant foam, powder, AFFF, foam, carbon dioxide. EXPLOSION Vapour/air mixtures are explosive. Closed system, ventilation, explosion-proof electrical equipment and lighting. In case of fire: keep drums, etc., cool by spraying with water. EXPOSURE AVOID ALL CONTACT!  •INHALATION Cough. Sore throat. Shortness of breath. Laboured breathing. Headache. Dizziness. Weakness. Nausea. Symptoms may be delayed (see Notes). Ventilation, local exhaust, or breathing protection. Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.  •SKIN Redness. Skin burns. Pain. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.  •EYES Pain. Redness. Blurred vision. Blue haze and halo. Temporary loss of 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 Abdominal pain. Burning sensation. Shock or collapse. Do not eat, drink, or smoke during work. 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. Remove all ignition sources. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT let this chemical enter the environment. (Extra personal protection: complete protective clothing including self-contained breathing apparatus.) Fireproof. Separated from incompatible materials , and food and feedstuffs . See Chemical Dangers. Do not transport with food and feedstuffs. F symbol C symbol R: 11-20/21/22-35 S: 1/2-3-16-26-29-36/37/39-45 UN Hazard Class: 3 UN Subsidiary Risks: 8 UN Packing Group: II SEE IMPORTANT INFORMATION ON BACK ICSC: 0203 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 TRIETHYLAMINE ICSC: 0203 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: The vapour is heavier than air and may travel along the ground; distant ignition possible. CHEMICAL DANGERS: The substance decomposes on burning producing irritating and toxic gases including nitrogen oxides . The substance is a strong base, it reacts violently with acid and is corrosive toaluminium, zinc, copper and their alloys in the presence of moisture. Reacts violently with strong oxidants causing fire and explosion hazard. Attacks some forms of plastic, rubber and coating. OCCUPATIONAL EXPOSURE LIMITS: TLV: ( as TWA) 1 ppm; ( as STEL) 3 ppm; (skin), A4; (ACGIH 2002). MAK: 1 ppm, 4.2 mg/m³; (DFG 2002). MAK: class Peak limitation category: I(2); Pregnancy risk group: IIc; (2002) EU OEL: 2 ppm, 8.4 mg/m³( as TWA); 3 ppm, 12.6 mg/m³( as STEL); (skin); (EU 2002). OSHA PEL: TWA 25 ppm (100 mg/m3) NIOSH REL: See Appendix D NIOSH IDLH: 200 ppm ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation, through the skin and by ingestion. INHALATION RISK: A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: The substance is corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion. Inhalation of the substance may cause lung oedema (see Notes). The effects may be delayed. Medical observation is indicated. The substance may cause effects on the central nervous system . EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point: 89°C Melting point: -115°C Relative density (water = 1): 0.7 Solubility in water, g/100 ml at 20°C: 17 ( good ) Vapour pressure, kPa at 20°C: 7.2 Relative vapour density (air = 1): 3.5 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.2 Flash point: -17°C c.c. Auto-ignition temperature: 230°C Explosive limits, vol% in air: 1.2-8 Octanol/water partition coefficient as log Pow: 1.45 ENVIRONMENTAL DATA The substance is harmful to aquatic organisms. N O T E S 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 inhalation therapy 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. Transport Emergency Card: TEC (R)-30S1296 NFPA Code: H3; F3; R0 ADDITIONAL INFORMATION ICSC: 0203 TRIETHYLAMINE (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.