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Safety Data Sheet Difluoromethane (R 32)

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Safety Data Sheet Difluoromethane (R 32) Safety data sheet Difluoromethane (R 32) Creation date : 28.01.2005 Version : 1.51 GB / E SDS No. : 152 Revision date : 11.05.2011 page 1 / 5 SECTION 1: Identification of the substance/mixture and of the company/undertaking Precautionary Statement Response P377 Leaking gas fire: Do not extinguish, unless 1.1. Product identifier leak can be stopped safely. Product name P381 Eliminate all ignition sources if safe to do so. Difluoromethane (R 32) Precautionary Statement Storage EC No (from EINECS): 200-839-4 P403 Store in a well-ventilated place. CAS No: 75-10-5 Index-Nr. Precautionary Statement Disposal Chemical formula CH2F2 None. REACH Registration number: 01-2119471312-47 2.3. Other hazards Contact with liquid may cause cold burns/frost bite. 1.2. Relevant identified uses of the substance or mixture and uses advised against Relevant identified uses SECTION 3: Composition/information on ingredients Industrial and professional. Perform risk assessment prior to use. Refrigerant. Substance / Mixture: Substance. Uses advised against Consumer use. 3.1. Substances Difluoromethane (R 32) 1.3. Details of the supplier of the safety data sheet CAS No: 75-10-5 Company identification Index-Nr.: BOC, Priestley Road, Worsley, Manchester M28 2UT EC No (from EINECS): 200-839-4 E-Mail Address [email protected] REACH Registration number: 01-2119471312-47 1.4. Emergency telephone number Contains no other components or impurities which will influence Emergency phone numbers (24h): 0800 111 333 the classification of the product. 3.2. Mixtures SECTION 2: Hazards identification Not applicable. 2.1. Classification of the substance or mixture SECTION 4: First aid measures Classification acc. to Regulation (EC) No 1272/2008/EC (CLP/GHS) 4.1. Description of first aid measures Press. Gas (Liquefied gas) - Contains gas under pressure; may First Aid General Information: explode if heated. Remove victim to uncontaminated area wearing self contained Flam. Gas 1 - Extremely flammable gas. breathing apparatus. Keep victim warm and rested. Call a doctor. Apply artificial respiration if breathing stopped. Classification acc. to Directive 67/548/EEC & 1999/45/EC: First Aid Inhalation: Proposed by the industry Remove victim to uncontaminated area wearing self contained F+; R12 breathing apparatus. Keep victim warm and rested. Call a Extremely flammable. doctor. Apply artificial respiration if breathing stopped. Risk advice to man and the environment First Aid Skin / Eye: Liquefied gas. In case of frostbite spray with water for at least 15 minutes. Contact with liquid may cause cold burns/frost bite. Apply a sterile dressing. Obtain medical assistance. Immediately flush eyes thoroughly with water for at least 15 2.2. Label elements minutes. - Labelling Pictograms First Aid Ingestion: Ingestion is not considered a potential route of exposure. 4.2. Most important symptoms and effects, both acute and delayed In low concentrations may cause narcotic effects. Symptoms may include dizziness, headache, nausea and loss of co- ordination. In high concentrations may cause asphyxiation. - Signal word Symptoms may include loss of mobility/consciousness. Victim Danger may not be aware of asphyxiation. - Hazard Statements 4.3. Indication of any immediate medical attention and H280 Contains gas under pressure; may special treatment needed explode if heated. None. H220 Extremely flammable gas. - Precautionary Statements SECTION 5: Fire fighting measures Precautionary Statement Prevention 5.1. Extinguishing media P210 Keep away from heat/sparks/open Suitable extinguishing media flames/hot surfaces. - No smoking. All known extinguishants can be used. Safety data sheet Difluoromethane (R 32) Creation date : 28.01.2005 Version : 1.51 GB / E SDS No. : 152 Revision date : 11.05.2011 page 2 / 5 operating cylinder valve discontinue use and contact supplier. 5.2. Special hazards arising from the substance or mixture Never attempt to repair or modify container valves or safety Specific hazards relief devices. Damaged valves should be reported immediately Exposure to fire may cause containers to rupture/explode. to the supplier. Keep container valve outlets clean and free from Hazardous combustion products contaminates particularly oil and water. Replace valve outlet If involved in a fire the following toxic and/or corrosive fumes may caps or plugs and container caps where supplied as soon as be produced by thermal decomposition: container is disconnected from equipment. Close container Hydrogen fluoride, Carbon monoxide, Carbonyl fluoride. valve after each use and when empty, even if still connected to equipment. Never attempt to transfer gases from one 5.3. Advice for fire-fighters cylinder/container to another. Never use direct flame or Specific methods electrical heating devices to raise the pressure of a container. If possible, stop flow of product. Move container away or cool with Do not remove or deface labels provided by the supplier for the water from a protected position. Do not extinguish a leaking gas identification of the cylinder contents. flame unless absolutely necessary. Spontaneous/explosive re- ignition may occur. Extinguish any other fire. Prevent water used 7.2. Conditions for safe storage, including any in emergency cases from entering sewers and drainage systems. incompatibilities Special protective equipment for fire-fighters Observe all regulations and local requirements regarding Use self-contained breathing apparatus and chemically protective storage of containers. Segregate from oxidant gases and other clothing. Clothing for fire-fighters (including helmets, protective oxidants in store. Keep container below 50°C in a well boots and gloves) conforming to EN 469 will provide a basic level ventilated place. Containers should be stored in the vertical of protection from chemical incidents. EN 469:2005: Protective position and properly secured to prevent falling over. Stored clothing for fire-fighters. Performance requirements for protective containers should be periodically checked for general clothing for fire-fighting. conditions and leakage. Container valve guards or caps should be in place. Store containers in location free from fire risk and away from sources of heat and ignition. Keep away from SECTION 6: Accidental release measures combustible materials. All electrical equipment in the storage areas should be compatible with the risk of potentially explosive 6.1. Personal precautions, protective equipment and atmosphere. Containers should not be stored in conditions emergency procedures likely to encourage corrosion. Consider the risk of potentially explosive atmospheres. Evacuate area. Ensure adequate air ventilation. Wear self-contained 7.3. Specific end use(s) breathing apparatus when entering area unless atmosphere is None. proved to be safe. Eliminate ignition sources. Prevent from entering sewers, basements and workpits, or any place where its accumulation can be dangerous. SECTION 8: Exposure controls/personal protection 6.2. Environmental precautions 8.1. Control parameters Try to stop release. Exposure limit value Value type value Note 6.3. Methods and material for containment and cleaning up Ventilate area. Keep area evacuated and free from ignition TLV (ACGIH) 1.000 ppm ACGIH 1995 - 1996 sources until any spilled liquid has evaporated. (Ground free from frost). Derived No Effect Levels Type Exposure Value Population Effects 6.4. Reference to other sections DNEL Long term 7.035 Workers Systemic Inhalation mg/m3 See also sections 8 and 13. DNEL Long term 750 Consumers Systemic Inhalation mg/m3 SECTION 7: Handling and storage Predicted No Effect Concentrations 7.1. Precautions for safe handling Type Compartment Value Only experienced and properly instructed persons should handle Detail gases under pressure. The substance must be handled in PNEC Fresh water 0,142 mg/l accordance with good industrial hygiene and safety procedures. PNEC Water 1,42 Use only properly specified equipment which is suitable for this (Intermittent mg/l product, its supply pressure and temperature. Contact your gas release) supplier if in doubt. Take precautionary measures against static PNEC Fresh water 0,534 sediment mg/kg discharges. Ensure equipment is adequately earthed. Purge air dw from system before introducing gas. Do not smoke while handling product. Assess the risk of potentially explosive atmosphere and the need for explosion-proof equipment. Consider the use of only 8.2. Exposure controls non-sparking tools. Ensure the complete gas system has been (or Appropriate engineering controls is regularly) checked for leaks before use. Refer to supplier's A risk assessment should be conducted and documented in handling instructions. Suck back of water into the container must each work area to assess the risks related to the use of the be prevented. Do not allow backfeed into the container. Protect product and to select the PPE that matches the relevant risk. cylinders from physical damage; do not drag, roll, slide or drop. The following recommendations should be considered. Gas When moving cylinders, even for short distances, use a cart detectors should be used when quantities of flammable (trolley, hand truck, etc.) designed to transport cylinders. Leave gases/vapours may be released. Consider work permit system valve protection caps in place until the container has been e.g. for maintenance activities. Systems under pressure should secured against either a wall or bench or placed in a container be regularly checked for leakages. Provide adequate general or stand and
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