International Chemical Safety Cards METHYL ISOAMYL KETONE ICSC: 0815 5-Methylhexan-2-one MIAK 2-Methyl-5-hexanone C7H14O / CH3CO(CH2)2CH(CH3)2 Molecular mass: 114.2 ICSC #    0815 CAS #     110-12-3 RTECS # MP3850000 UN #        2302 EC #         606-026-00-4 March 26, 1998 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Flammable. NO open flames, NO sparks, and NO smoking. AFFF, alcohol-resistant foam, powder, carbon dioxide. EXPLOSION Above 36°C explosive vapour/air mixtures may be formed. Above 36°C use a closed system, ventilation, and explosion-proof electrical equipment. In case of fire: keep drums, etc., cool by spraying with water. EXPOSURE  •INHALATION Cough. Headache. Dizziness. Drowsiness. Laboured breathing. Sore throat. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Refer for medical attention.  •SKIN Dry skin. Redness. Protective gloves. Protective clothing. First rinse with plenty of water, then remove contaminated clothes and rinse again. Refer for medical attention.  •EYES Redness. Safety spectacles, 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 Nausea. (See Inhalation). Do not eat, drink, or smoke during work. Rinse mouth. Do NOT induce vomiting. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer. Personal protection: filter respirator for organic gases and vapours. Fireproof. Xn symbol R: 10-20 S: 2-23-24/25 UN Hazard Class: 3 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 0815 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 METHYL ISOAMYL KETONE ICSC: 0815 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 mixes well with air, explosive mixtures are easily formed. CHEMICAL DANGERS: Reacts violently with strong oxidants,strong bases,amines and isocyanates causing fire and explosion hazard. Attacks some plastic. OCCUPATIONAL EXPOSURE LIMITS: TLV: 50 ppm as TWA; (ACGIH 2004). OSHA PEL: TWA 100 ppm (475 mg/m3) NIOSH REL: TWA 50 ppm (240 mg/m3) NIOSH IDLH: No data ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its vapour. INHALATION RISK: A harmful contamination of the air will be reached rather slowly 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 The substance may cause effects on the kidneys , resulting in kidney impairment. Exposure above OEL could cause lowering of consciousness. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact with skin may cause dermatitis. PHYSICAL PROPERTIES Boiling point: 144°C Melting point: -74°C Relative density (water = 1): 0.89 Solubility in water, g/100 ml at 20°C: 0.5 (poor) Vapour pressure, kPa at 20°C: 0.6 Relative vapour density (air = 1): 3.9 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.02 Flash point: 36°C c.c. Auto-ignition temperature: 191°C Explosive limits, vol% in air: 1.0-8.2 (at 93°C) Octanol/water partition coefficient as log Pow: 1.72 (estimated) ENVIRONMENTAL DATA N O T E S Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency Response. Transport Emergency Card: TEC (R)-30S2302 NFPA Code: H1; F2; R0 ADDITIONAL INFORMATION ICSC: 0815 METHYL ISOAMYL KETONE (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.