International Chemical Safety Cards 2,2'-DIMETHYL-4,4'-METHYLENEBIS(CYCLOHEXYLAMINE) ICSC: 1464 3,3'-Dimethyl-4,4'-diaminodicyclohexylmethane 4,4'-Diamino-3,3'-dimethyldicyclohexylmethane 4,4'-Methylenebis-(2-methylcyclohexanamine) C15H30N2 Molecular mass: 238.5 ICSC #    1464 CAS #     6864-37-5 RTECS # GU5980000 EC #         612-110-00-1 October 11, 2002 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. NO open flames. Powder, alcohol-resistant foam, water spray, carbon dioxide. EXPLOSION EXPOSURE AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!  •INHALATION Burning sensation. Cough. Sore throat. Laboured breathing. Shortness of breath. Symptoms may be delayed (see Notes). Ventilation, local exhaust, or breathing protection. Fresh air, rest. Refer for medical attention. Half-upright position. Artificial respiration may be needed.  •SKIN Serious skin burns. Pain. Redness. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.  •EYES Pain. Redness. 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. Wash hands before eating. Rinse mouth. Give plenty of water to drink. Do NOT induce vomiting. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Consult an expert! Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable plastic containers as far as possible. (Extra personal protection: complete protective clothing including self-contained breathing apparatus.) Separated from food and feedstuffs . Do not transport with food and feedstuffs. T symbol C symbol N symbol R: 22-23/24-35-51/53 S: 1/2-26-36/37/39-45-61 SEE IMPORTANT INFORMATION ON BACK ICSC: 1464 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'-DIMETHYL-4,4'-METHYLENEBIS(CYCLOHEXYLAMINE) ICSC: 1464 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS TO YELLOW LIQUID PHYSICAL DANGERS: CHEMICAL DANGERS: The substance is a weak base. The substance decomposes on burning producing nitrogen oxides . OCCUPATIONAL EXPOSURE LIMITS: TLV not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. INHALATION RISK: A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20°C ; on spraying or dispersing, however, much faster. EFFECTS OF SHORT-TERM EXPOSURE: The substance is severely corrosive to the eyes and the skin. The substance is corrosive to the respiratory tract. Corrosive on ingestion. Inhalation of the aerosol at high levels may cause lung oedema (see Notes). EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the skin resulting in chronic disease (scleroderma). The substance may have effects on the blood , cardiovascular system , kidneys and liver , resulting in anaemia , cardiac disorders , kidney impairment and liver impairment . PHYSICAL PROPERTIES Boiling point: 342°C Melting point: -7°C Relative density (water = 1): 0.95 Solubility in water, g/100 ml at 20°C: 0.4 Vapour pressure, Pa at 20°C: 0.08 Octanol/water partition coefficient as log Pow: 2.5 ENVIRONMENTAL DATA The substance is toxic to aquatic organisms. It is strongly advised that this substance does not enter the environment. N O T E S Epi-Cure 113, Hardener SL and Laromin C are trade names. 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 is therefore essential. ADDITIONAL INFORMATION ICSC: 1464 2,2'-DIMETHYL-4,4'-METHYLENEBIS(CYCLOHEXYLAMINE) (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.