International Chemical Safety Cards HEXANOIC ACID ICSC: 1167 Butylacetic acid Capronic acid n-Caproic acid C6H12O2 / CH3(CH2)4COOH Molecular mass: 116.2 ICSC #    1167 CAS #     142-62-1 RTECS # MO5250000 UN #        2829 March 25, 1998 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. NO open flames. NO contact with strong oxidants. Powder, AFFF, foam, carbon dioxide. EXPLOSION EXPOSURE PREVENT GENERATION OF MISTS!  •INHALATION Cough. Sore throat. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Refer for medical attention.  •SKIN Redness. Pain. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.  •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 Do not eat, drink, or smoke during work. Rinse mouth. Do NOT induce vomiting. Give plenty of water to drink. Rest. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Collect leaking liquid in sealable containers. Wash away spilled liquid with plenty of water. Do NOT wash away into sewer. Separated from strong oxidants, strong bases, food and feedstuffs. Do not transport with food and feedstuffs. R: S: UN Hazard Class: 8 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 1167 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 HEXANOIC ACID ICSC: 1167 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: OILY, COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance is a weak acid. Reacts violently with acids , strong bases and oxidants . OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol and through the skin. 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. EFFECTS OF SHORT-TERM EXPOSURE: The substance irritates the eyes , the skin and the respiratory tract . Swallowing the liquid may cause aspiration into the lungs with the risk of chemical pneumonitis. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: See Notes. PHYSICAL PROPERTIES Boiling point: 205°C Melting point: -3°C Relative density (water = 1): 0.93 Solubility in water, g/100 ml at 20°C: 1.1 Vapour pressure, Pa at 20°C: 27 Relative vapour density (air = 1): 4.0 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.0 Flash point: 102°C o.c. Auto-ignition temperature: 380°C Explosive limits, vol% in air: 1.3-9.3 Octanol/water partition coefficient as log Pow: 1.88 ENVIRONMENTAL DATA The substance is harmful to aquatic organisms. N O T E S Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken. Hexacid 698 is a trade name. Transport Emergency Card: TEC (R)-80G20c NFPA Code: H2; F1; R0 ADDITIONAL INFORMATION ICSC: 1167 HEXANOIC 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.