International Chemical Safety Cards n-BUTYL METHACRYLATE ICSC: 1018 2-Methyl butylacrylate 2-Propenoic acid, 2-methyl-, butyl ester Butyl 2-methacrylate Methacrylic acid, butyl ester C8H14O2 / CH2C(CH3)COO(CH2)3CH3 Molecular mass: 142.2 ICSC #    1018 CAS #     97-88-1 RTECS # OZ3675000 UN #        2227 EC #         607-033-00-5 November 25, 2009 Validated GH, -checked Dec 09 TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Flammable. NO open flames, NO sparks, and NO smoking. Foam. Carbon dioxide. EXPLOSION Above 50°C explosive vapour/air mixtures may be formed. Above 50°C use a closed system, ventilation, and explosion-proof electrical equipment. Prevent build-up of electrostatic charges (e.g., by grounding). In case of fire: keep drums, etc., cool by spraying with water. EXPOSURE AVOID ALL CONTACT!  •INHALATION Sore throat. Cough. Shortness of breath. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Half-upright position. Refer for medical attention.  •SKIN Redness. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.  •EYES Causes watering of the eyes. Redness. Pain. 19109000 Safety goggles. Rinse with plenty of water (remove contact lenses if easily possible).  •INGESTION Cough. Sore throat. Abdominal cramps. Nausea. Do not eat, drink, or smoke during work. Rinse mouth. Do NOT induce vomiting. Rest. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Collect leaking liquid in covered containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Fireproof. Separated from oxidants. Cool. Dry. Keep in the dark. Store only if stabilized. Store in an area without drain or sewer access. Note: D Xi symbol R: 10-36/37/38-43 S: 2 UN Hazard Class: 3 UN Packing Group: III Signal: Warning Flame-Excl mark-Health haz Flammable liquid and vapour Causes skin irritation Causes eye irritation May cause allergic skin reaction May cause respiratory irritation May be harmful if swallowed and enters airways Harmful to aquatic life SEE IMPORTANT INFORMATION ON BACK ICSC: 1018 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 n-BUTYL METHACRYLATE ICSC: 1018 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: As a result of flow, agitation, etc., electrostatic charges can be generated. CHEMICAL DANGERS: The substance may polymerize due to heating, under the influence of moisture, oxidants or light with fire or explosion hazard. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK: sensitization of skin (Sh); (DFG 2009). ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation. INHALATION RISK: No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: Lachrymation. The substance is irritating to the eyes, the skin and the respiratory tract. If swallowed the substance may cause vomiting, and could result in aspiration pneumonitis. Medical observation is indicated. eport):corrosive to skin + presumably to eyes of rabbits; 13713000 0 and 13751000 added in update Lyon 2009 n inhalation study (1979) in rats with 19.7mg wich showed induction of lung oedema but peer review decision not to select Nov 2009 EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact may cause skin sensitization. PHYSICAL PROPERTIES Boiling point: 163°C Melting point: -50°C Relative density (water = 1): 0.9 Solubility in water, g/100 ml at 25°C: 0.08 (very poor) Vapour pressure, kPa at 20°C: 0.3 Relative vapour density (air = 1): 4.9 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01 Flashpoint: 50°C c.c. Auto-ignition temperature: 290°C Explosive limits, vol% in air: 1-8 Octanol/water partition coefficient as log Pow: 2.26-3.01 Viscosity, mm²/s at 24 °C: 1,02 ENVIRONMENTAL DATA The substance is harmful to aquatic organisms. 0 added in update Lyon 2009 according to the results of the studies N O T E S An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert. NFPA Code: H1; F2; R2. ADDITIONAL INFORMATION ICSC: 1018 n-BUTYL METHACRYLATE (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.