3-CHLORO-2-METHYL-1-PROPENE ICSC: 1341 Methallyl chloride Methyl allyl chloride gamma-Chloroisobutylene C4H7Cl / ClCH2(CH3)C=CH2 Molecular mass: 90.55 ICSC #    1341 CAS #     563-47-3 RTECS # UC8050000 UN #        2554 EC #         602-032-00-6 Types of Hazard/ Exposure Acute Hazards/ Symptoms Prevention First Aid/ Fire Fighting FIRE Highly flammable. Heating will cause rise in pressure with risk of bursting. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames, NO sparks, and NO smoking. NO contact with hot surfaces. Powder, carbon dioxide, foam. Explosion Vapour/air mixtures are explosive. Heating will cause rise in pressure with risk of bursting. Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling. In case of fire: keep drums, etc., cool by spraying with water. Exposure PREVENT GENERATION OF MISTS! AVOID ALL CONTACT!  •Inhalation Cough. Sore throat. Headache. Shortness of breath. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.  •Skin Redness. Pain. Protective gloves. Remove contaminated clothes. Rinse and then wash skin with water and soap.  •Eyes Causes watering of the eyes. Redness. Pain. 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. Rest. Refer for medical attention. Spillage Disposal Storage Packaging & Labelling Evacuate danger area! Consult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Remove all ignition sources. 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. Do NOT let this chemical enter the environment. Fireproof. Separated from strong oxidants, strong bases. Cooled. Well closed. Ventilation along the floor. Store in an area without drain or sewer access. F symbol C symbol N symbol R: 11-20/22-34-43-51/53 S: 2-9-16-26-29-36/37/39-45-61 UN Hazard Class: 3 UN Packing Group: II Signal: Danger Flame-Excl mark-Health haz Highly flammable liquid and vapour Harmful if swallowed May be harmful if inhaled vapour Causes skin irritation Causes eye irritation May cause damage to nervous system if inhaled May cause allergic skin reaction Harmful to aquatic life 3-CHLORO-2-METHYL-1-PROPENE ICSC: 1341 Important Data Physical State; Appearance: COLOURLESS , WITH PUNGENT 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 toxic fumes, including phosgene and hydrogen chloride. Reacts with causing fire hazard. Occupational Exposure Limits: TLV not established. MAK: Carcinogen category: 3B (DFG 2008). Routes of Exposure: The substance can be absorbed into the body by inhalation of its vapour 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: Lachrymation. The substance is irritating to the eyes the skin and the respiratory tract . The substance may cause effects on the central nervous system. Exposure at high levels could cause lowering of consciousness. ty: 28 (0.42mPa s: 26) - no temp, no human data, did not select at peer review; 13751000 Effects of Long-Term or Repeated Exposure: Repeated or prolonged contact may cause skin sensitization. Physical Properties Boiling point: 72°C Melting point: -80°C Relative density (water = 1): 0.92 Solubility in water, g/100 ml at 25°C: 0.14 (very poor) Vapour pressure, kPa at 20°C: 14 Relative vapour density (air = 1): 3.1 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.3 Flash point: -12°C c.c. Auto-ignition temperature: 540°C Explosive limits, vol% in air: 2.2-10.4 Octanol/water partition coefficient as log Pow: 1.98 Environmental Data The substance is harmful to aquatic organisms. N O T E S Transport Emergency Card: TEC (R)-30GF1-I+II NFPA Code: H1; F3; R1; ADDITIONAL INFORMATION ICSC: 1341 3-CHLORO-2-METHYL-1-PROPENE (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.