Safety data sheet Acetylene, dissolved. Creation date : Revision date : 1 27.01.2005 14.01.2010 Version : 1.3 IDENTIFICATION OF THE SUBSTANCE/PREPARATION AND OF THE COMPANY Product name Acetylene, dissolved. Chemical formula C2H2 Known uses Not known. Company identification Linde AG, Linde Gas Division, Seitnerstraße 70, D-82049 Pullach E-Mail Adress [email protected] Emergency phone numbers (24h): 089-7446-0 2 HAZARDS IDENTIFICATION Classification Heating may cause an explosion. Explosive with or without contact with air. Extremely flammable. Risk advice to man and the environment Dissolved gas 3 COMPOSITION/INFORMATION ON INGREDIENTS Substance/Preparation: Substance. Components/Impurities CAS Nr: 74-86-2 EEC Nr (from EINECS) : 200-816-9 Contains no other components or impurities which will influence the classification of the product. 4 FIRST AID MEASURES Inhalation In high concentrations may cause asphyxiation. Symptoms may include loss of mobility/consciousness. Victim may not be aware of asphyxiation. In low concentrations may cause narcotic effects. Symptoms may include dizziness, headache, nausea and loss of coordination. Remove victim to uncontaminated area wearing self contained breathing apparatus. Keep victim warm and rested. Call a doctor. Apply artificial respiration if breathing stopped. Ingestion Ingestion is not considered a potential route of exposure. 7 DE / E SDS No. : 8364 page 1 / 2 HANDLING AND STORAGE Handling Ensure equipment is adequately earthed. Suck back of water into the container must be prevented. Purge air from system before introducing gas. Use only properly specified equipment which is suitable for this product, its supply pressure and temperature. Contact your gas supplier if in doubt. Keep away from ignition sources (including static discharges). Refer to supplier's handling instructions. Storage Secure cylinders to prevent them falling. Keep container below 50°C in a well ventilated place. Segregate from oxidant gases and other oxidants in store. Observe "Technische Regeln Druckgase (TRG) 280 Ziffer 5" 8 EXPOSURE CONTROLS/PERSONAL PROTECTION Personal protection Ensure adequate ventilation. Do not smoke while handling product. Wear suitable hand, body and head protection. Wear goggles with suitable filter lenses when use is cutting/welding. 9 PHYSICAL AND CHEMICAL PROPERTIES General information Appearance/Colour: Colourless gas. Odour: Garlic like Poor warning properties at low concentrations. Important information on environment, health and safety Molecular weight: 26 g/mol Melting point: -80,8 °C Sublimation point: -84 °C Critical temperature: 35,2 °C Autoignition temperature: 325 °C Flammability range: 2,4 %(V) - 88 %(V) Relative density, gas: 0,9 Relative density, liquid: Not applicable. Solubility mg/l water: 1185 mg/l Maximum filling pressure (bar): 19 bar 10 STABILITY AND REACTIVITY 5 FIRE FIGHTING MEASURES Specific hazards Exposure to fire may cause containers to rupture/explode. Hazardous combustion products Incomplete combustion may form carbon monoxide. Suitable extinguishing media All known extinguishants can be used. Specific methods If possible, stop flow of product. Do not extinguish a leaking gas flame unless absolutely necessary. Spontaneous/explosive reignition may occur. Special protective equipment for fire fighters In confined space use self-contained breathing apparatus. 6 ACCIDENTAL RELEASE MEASURES Personal precautions Wear self-contained breathing apparatus when entering area unless atmosphere is proved to be safe. Evacuate area. Ensure adequate air ventilation. Eliminate ignition sources. Environmental precautions Try to stop release. Clean up methods Ventilate area. Stability and reactivity Can form explosive mixture with air. May decompose violently at high temperature and/or pressure or in the presence of a catalyst Forms explosive acetylides with copper, silver and mercury. Do not use alloys containing more than 70% copper. May react violently with oxidants. 11 TOXICOLOGICAL INFORMATION General No known toxicological effects from this product. 12 ECOLOGICAL INFORMATION General No known ecological damage caused by this product. 13 DISPOSAL CONSIDERATIONS General Do not discharge into areas where there is a risk of forming an explosive mixture with air. Waste gas should be flared through a suitable burner with flash back arrestor. Do not discharge into any place where its accumulation could be dangerous. Contact supplier if guidance is required. 8364 / EDV / 03.11.2009

Safety data sheet Acetylene, dissolved. Creation date : Revision date : 27.01.2005 14.01.2010 Version : 1.3 EWC Nr. 16 05 04* 14 TRANSPORT INFORMATION ADR/RID Class 2 Classification Code UN number and proper shipping name UN 1001 Acetylene, dissolved UN 1001 Acetylene, dissolved Labels 2.1 Hazard number Packing Instruction P200 4F 239 IMDG Class 2.1 UN number and proper shipping name UN 1001 Acetylene, dissolved Labels 2.1 Packing Instruction P200 EmS FD, SU IATA Class 2.1 UN number and proper shipping name UN 1001 Acetylene, dissolved Labels 2.1 Packing Instruction P200 Other transport information...