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SAFETY DATA SHEETFreon 22 (R-22) RefrigerantVersion7.1Revision Date:10/23/2017SDS Number:1329809-00036Date of last issue: 09/12/2017Date of first issue: 02/27/2017SECTION 1. IDENTIFICATIONProduct name:Freon 22 (R-22) RefrigerantSDS-Identcode:130000024323Manufacturer or supplier's detailsCompany name of supplier: The Chemours Company FC, LLCAddress:1007 Market StreetWilmington, DE 19899 United States of America (USA)Telephone:1-844-773-CHEM (outside the U.S. 1-302-773-1000)Emergency telephone:Medical emergency: 1-866-595-1473 (outside the U.S. 1-302773-2000) ; Transport emergency: 1-800-424-9300 (outsidethe U.S. 1-703-527-3887)Recommended use of the chemical and restrictions on useRecommended use: RefrigerantRestrictions on use:For industrial use only.SECTION 2. HAZARDS IDENTIFICATIONGHS classification in accordance with 29 CFR 1910.1200Gases under pressure: Liquefied gasSimple AsphyxiantGHS label elementsHazard pictograms:Signal Word:WarningHazard Statements:H280 Contains gas under pressure; may explode if heated.May displace oxygen and cause rapid suffocation.Precautionary Statements:Storage:P410 P403 Protect from sunlight. Store in a well-ventilatedplace.Other hazardsDangerous for the ozone layer.1 / 14

SAFETY DATA SHEETFreon 22 (R-22) RefrigerantVersion7.1Revision Date:10/23/2017SDS Number:1329809-00036Date of last issue: 09/12/2017Date of first issue: 02/27/2017Vapors are heavier than air and can cause suffocation by reducing oxygen available for breathing.Misuse or intentional inhalation abuse may cause death without warning symptoms, due tocardiac effects.Rapid evaporation of the product may cause frostbite.SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTSSubstance / Mixture:SubstanceSubstance name:ChlorodifluoromethaneCAS-No.:75-45-6Hazardous ingredientsChemical on (% w/w)100SECTION 4. FIRST AID MEASURESGeneral advice:In the case of accident or if you feel unwell, seek medicaladvice immediately.When symptoms persist or in all cases of doubt seek medicaladvice.If inhaled:If inhaled, remove to fresh air.Get medical attention if symptoms occur.In case of skin contact:Thaw frosted parts with lukewarm water. Do not rub affectedarea.Get medical attention immediately.In case of eye contact:Get medical attention immediately.If swallowed:Ingestion is not considered a potential route of exposure.Most important symptomsand effects, both acute anddelayed:May cause cardiac arrhythmia.Inhalation of high concentration may causeAnaesthetic sUnconsciousnessIrregular cardiac activityfaintingWeaknessLack of coordinationContact with liquid or refrigerated gas can cause cold burnsand frostbite.Protection of first-aiders:No special precautions are necessary for first aid responders.Notes to physician:Treat symptomatically and supportively.2 / 14

SAFETY DATA SHEETFreon 22 (R-22) RefrigerantVersion7.1Revision Date:10/23/2017SDS Number:1329809-00036Date of last issue: 09/12/2017Date of first issue: 02/27/2017SECTION 5. FIRE-FIGHTING MEASURESSuitable extinguishing media:Not applicableWill not burnUnsuitable extinguishingmedia:Not applicableWill not burnSpecific hazards during firefighting:Exposure to combustion products may be a hazard to health.If the temperature rises there is danger of the vessels burstingdue to the high vapor pressure.Hazardous combustion prod- :uctsNo hazardous combustion products are knownSpecific extinguishing methods:Use extinguishing measures that are appropriate to local circumstances and the surrounding environment.Fight fire remotely due to the risk of explosion.Use water spray to cool unopened containers.Remove undamaged containers from fire area if it is safe to doso.Evacuate area.Special protective equipmentfor fire-fighters:Wear self-contained breathing apparatus for firefighting ifnecessary.Use personal protective equipment.SECTION 6. ACCIDENTAL RELEASE MEASURESPersonal precautions, protec- :tive equipment and emergency proceduresEvacuate personnel to safe areas.Avoid skin contact with leaking liquid (danger of frostbite).Ventilate the area.Follow safe handling advice and personal protectiveequipment recommendations.Environmental precautions:Prevent further leakage or spillage if safe to do so.Retain and dispose of contaminated wash water.Methods and materials forcontainment and cleaning up:Ventilate the area.Local or national regulations may apply to releases anddisposal of this material, as well as those materials and itemsemployed in the cleanup of releases. You will need todetermine which regulations are applicable.Sections 13 and 15 of this SDS provide information regardingcertain local or national requirements.SECTION 7. HANDLING AND STORAGETechnical measures:Use equipment rated for cylinder pressure. Use a backflowpreventative device in piping. Close valve after each use andwhen empty.3 / 14

SAFETY DATA SHEETFreon 22 (R-22) RefrigerantVersion7.1Revision Date:10/23/2017SDS Number:1329809-00036Date of last issue: 09/12/2017Date of first issue: 02/27/2017Local/Total ventilation:Use only with adequate ventilation.Advice on safe handling:Avoid breathing gas.Handle in accordance with good industrial hygiene and safetypractice, based on the results of the workplace exposureassessmentWear cold insulating gloves/ face shield/ eye protection.Valve protection caps and valve outlet threaded plugs mustremain in place unless container is secured with valve outletpiped to use point.Use a check valve or trap in the discharge line to preventhazardous back flow into the cylinder.Prevent backflow into the gas tank.Use a pressure reducing regulator when connecting cylinderto lower pressure ( 3000 psig) piping or systems.Close valve after each use and when empty. Do NOT changeor force fit connections.Prevent the intrusion of water into the gas tank.Never attempt to lift cylinder by its cap.Do not drag, slide or roll cylinders.Use a suitable hand truck for cylinder movement.Keep away from heat and sources of ignition.Take precautionary measures against static discharges.Take care to prevent spills, waste and minimize release to theenvironment.Conditions for safe storage:Cylinders should be stored upright and firmly secured toprevent falling or being knocked over.Separate full containers from empty containers.Do not store near combustible materials.Avoid area where salt or other corrosive materials are present.Keep in properly labeled containers.Keep in a cool, well-ventilated place.Keep away from direct sunlight.Store in accordance with the particular national regulations.Materials to avoid:Do not store with the following product types:Self-reactive substances and mixturesOrganic peroxidesOxidizing agentsFlammable liquidsFlammable solidsPyrophoric liquidsPyrophoric solidsSelf-heating substances and mixturesSubstances and mixtures which in contact with water emitflammable gasesExplosivesAcutely toxic substances and mixturesSubstances and mixtures with chronic toxicityRecommended storage temperature: 52 CStorage period: 10 y4 / 14

SAFETY DATA SHEETFreon 22 (R-22) RefrigerantVersion7.1Revision Date:10/23/2017Further information on storage stabilitySDS Number:1329809-00036:Date of last issue: 09/12/2017Date of first issue: 02/27/2017The product has an indefinite shelf life when stored properly.SECTION 8. EXPOSURE CONTROLS/PERSONAL PROTECTIONIngredients with workplace control 5-45-6Value type(Form ofexposure)TWASTTWAEngineering measures:Control parameters / Permissibleconcentration1,000 ppm1,250 ppm4,375 mg/m³1,000 ppm3,500 mg/m³BasisACGIHNIOSH RELNIOSH RELEnsure adequate ventilation, especially in confined areas.Minimize workplace exposure concentrations.Personal protective equipmentRespiratory protection: General and local exhaust ventilation is recommended tomaintain vapor exposures below recommended limits. Whereconcentrations are above recommended limits or areunknown, appropriate respiratory protection should be worn.Follow OSHA respirator regulations (29 CFR 1910.134) anduse NIOSH/MSHA approved respirators. Protection providedby air purifying respirators against exposure to anyhazardous chemical is limited. Use a positive pressure airsupplied respirator if there is any potential for uncontrolledrelease, exposure levels are unknown, or any othercircumstance where air purifying respirators may not provideadequate protection.Hand protectionMaterial:Low temperature resistant glovesRemarks:Choose gloves to protect hands against chemicals dependingon the concentration specific to place of work. For specialapplications, we recommend clarifying the resistance tochemicals of the aforementioned protective gloves with theglove manufacturer. Wash hands before breaks and at theend of workday. Breakthrough time is not determined for theproduct. Change gloves often!Eye protection:Wear the following personal protective equipment:Chemical resistant goggles must be worn.Face-shieldSkin and body protection:Skin should be washed after contact.5 / 14

SAFETY DATA SHEETFreon 22 (R-22) RefrigerantVersion7.1Revision Date:10/23/2017SDS Number:1329809-00036Date of last issue: 09/12/2017Date of first issue: 02/27/2017Protective measures:Wear cold insulating gloves/ face shield/ eye protection.Hygiene measures:Ensure that eye flushing systems and safety showers arelocated close to the working place.When using do not eat, drink or smoke.Wash contaminated clothing before re-use.SECTION 9. PHYSICAL AND CHEMICAL PROPERTIESAppearance:Liquefied gasColor:colorlessOdor:odorless, slight, sweetOdor Threshold:No data availablepH:No data availableMelting point/freezing point:-160 CInitial boiling point and boilingrange:-40.8 C(1,013 hPa)Flash point:Not applicableEvaporation rate: 1(CCL4 1.0)Flammability (solid, gas):Will not burnSelf-ignition: The substance or mixture is not classified as pyrophoric.Upper explosion limit / Upperflammability limit:Upper flammability limitMethod: ASTM E681None.Lower explosion limit / Lowerflammability limit:Lower flammability limitMethod: ASTM E681None.Vapor pressure:9,135 hPa (20 C)Relative vapor density:3Relative density:1.19 (25 C)Density:1.191 g/cm³ (25 C)(as liquid)Solubility(ies)Water solubility:2.6 g/l (25 C)Partition coefficient: n-:log Pow: 0.053 (25 C)6 / 14

SAFETY DATA SHEETFreon 22 (R-22) RefrigerantVersion7.1Revision Date:10/23/2017SDS Number:1329809-00036Date of last issue: 09/12/2017Date of first issue: 02/27/2017octanol/waterAutoignition temperature:632 - 635 CDecomposition temperature:632 CViscosityViscosity, dynamic:0.22 mPa.s (10 C):Not applicableExplosive properties:Not explosiveOxidizing properties:The substance or mixture is not classified as oxidizing.Particle size:Not applicableViscosity, kinematicSECTION 10. STABILITY AND REACTIVITYReactivity:Not classified as a reactivity hazard.Chemical stability:Stable if used as directed. Follow precautionary advice andavoid incompatible materials and conditions.Possibility of hazardous reactions:Can react with strong oxidizing agents.Conditions to avoid:Heat, flames and sparks.Incompatible materials:Oxidizing agentsHazardous decompositionproducts:No hazardous decomposition products are known.SECTION 11. TOXICOLOGICAL INFORMATIONInformation on likely routes of exposureInhalationSkin contactEye contactAcute toxicityNot classified based on available e inhalation toxicity:LC50 (Mouse): 150000 ppmExposure time: 4 hTest atmosphere: gasLowest observed adverse effect concentration (Dog): 50000ppmTest atmosphere: gas7 / 14