SAFETY DATA SHEET - Airgas

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SAFETY DATA SHEETAmmoniaSection 1. IdentificationGHS product identifier: AmmoniaChemical name: ammoniaOther means ofidentification: ammonia; anhydrous ammoniaProduct type: Gas.Product use: Synthetic/Analytical chemistry.SynonymSDS #Supplier's details: ammonia; anhydrous ammonia: 001003: Airgas USA, LLC and its affiliates259 North Radnor-Chester RoadSuite 100Radnor, PA 19087-52831-610-687-525324-hour telephone: 1-866-734-3438Section 2. Hazards identificationOSHA/HCS statusClassification of thesubstance or mixture: This material is considered hazardous by the OSHA Hazard Communication Standard(29 CFR 1910.1200).: FLAMMABLE GASES - Category 2GASES UNDER PRESSURE - Liquefied gasACUTE TOXICITY (inhalation) - Category 4SKIN CORROSION - Category 1SERIOUS EYE DAMAGE - Category 1AQUATIC HAZARD (ACUTE) - Category 1GHS label elementsHazard pictograms:Signal word: DangerHazard statements: Flammable gas.May form explosive mixtures with air.Contains gas under pressure; may explode if heated.May displace oxygen and cause rapid suffocation.Harmful if inhaled.Causes severe skin burns and eye damage.Very toxic to aquatic life.Precautionary statementsGeneralPreventionDate of issue/Date of revision: Read and follow all Safety Data Sheets (SDS’S) before use. Close valve after each useand when empty. Use equipment rated for cylinder pressure. Do not open valve untilconnected to equipment prepared for use. Use a back flow preventative device in thepiping. Use only equipment of compatible materials of construction. Always keepcontainer in upright position. Approach suspected leak area with caution.: Wear protective gloves. Wear eye or face protection. Wear protective clothing. Keepaway from heat, hot surfaces, sparks, open flames and other ignition sources. Nosmoking. Use only outdoors or in a well-ventilated area. Avoid release to theenvironment. Avoid breathing gas. Wash hands thoroughly after handling.: 1/10/2019Date of previous issue: 10/9/2018Version: 1.091/12

AmmoniaSection 2. Hazards identificationResponseStorageDisposalHazards not otherwiseclassified: Collect spillage. IF INHALED: Remove person to fresh air and keep comfortable forbreathing. Immediately call a POISON CENTER or physician. IF SWALLOWED:Immediately call a POISON CENTER or physician. Rinse mouth. Do NOT inducevomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinseskin with water or shower. Wash contaminated clothing before reuse. Immediately calla POISON CENTER or physician. IF IN EYES: Rinse cautiously with water for severalminutes. Remove contact lenses, if present and easy to do. Continue rinsing.Immediately call a POISON CENTER or physician. Leaking gas fire: Do not extinguish,unless leak can be stopped safely. Eliminate all ignition sources if safe to do so.: Store locked up. Protect from sunlight. Store in a well-ventilated place.: Dispose of contents and container in accordance with all local, regional, national andinternational regulations.: In addition to any other important health or physical hazards, this product may displaceoxygen and cause rapid suffocation.Section 3. Composition/information on ingredientsSubstance/mixture: SubstanceChemical nameOther means ofidentificationProduct code: ammonia: ammonia; anhydrous ammonia: 001003CAS number/other identifiersCAS number: 7664-41-7Ingredient name%CAS numberammonia1007664-41-7Any concentration shown as a range is to protect confidentiality or is due to batch variation.There are no additional ingredients present which, within the current knowledge of the supplier and in theconcentrations applicable, are classified as hazardous to health or the environment and hence require reportingin this section.Occupational exposure limits, if available, are listed in Section 8.Section 4. First aid measuresDescription of necessary first aid measuresEye contactInhalationSkin contactIngestionDate of issue/Date of revision:Immediately flush eyes with plenty of water, occasionally lifting the upper and lowereyelids. Check for and remove any contact lenses. Continue to rinse for at least 10minutes. Get medical attention immediately. Call medical doctor or poison controlcenter immediately.Chemical burns must be treated promptly by a physician.: Remove victim to fresh air and keep at rest in a position comfortable for breathing. If itis suspected that fumes are still present, the rescuer should wear an appropriate maskor self-contained breathing apparatus. If not breathing, if breathing is irregular or ifrespiratory arrest occurs, provide artificial respiration or oxygen by trained personnel. Itmay be dangerous to the person providing aid to give mouth-to-mouth resuscitation. Ifunconscious, place in recovery position and get medical attention immediately. Maintainan open airway. Loosen tight clothing such as a collar, tie, belt or waistband. Getmedical attention immediately. Call medical doctor or poison control center immediately.In case of inhalation of decomposition products in a fire, symptoms may be delayed.The exposed person may need to be kept under medical surveillance for 48 hours.: Flush contaminated skin with plenty of water. Remove contaminated clothing andshoes. To avoid the risk of static discharges and gas ignition, soak contaminatedclothing thoroughly with water before removing it. Continue to rinse for at least 10minutes. Get medical attention immediately. Call medical doctor or poison controlcenter immediately. Chemical burns must be treated promptly by a physician. Washclothing before reuse. Clean shoes thoroughly before reuse.: As this product is a gas, refer to the inhalation section.: 1/10/2019Date of previous issue: 10/9/2018Version: 1.092/12

AmmoniaSection 4. First aid measuresMost important symptoms/effects, acute and delayedPotential acute health effectsEye contact: Causes serious eye damage.Inhalation: Harmful if inhaled.Skin contact: Causes severe burns.FrostbiteIngestion: Try to warm up the frozen tissues and seek medical attention.: As this product is a gas, refer to the inhalation section.Over-exposure signs/symptomsEye contact: Adverse symptoms may include the following:, pain, watering, rednessInhalation: No specific data.Skin contact: Adverse symptoms may include the following:, pain or irritation, redness, blistering mayoccur: Adverse symptoms may include the following:, stomach painsIngestionIndication of immediate medical attention and special treatment needed, if necessaryNotes to physician: In case of inhalation of decomposition products in a fire, symptoms may be delayed.The exposed person may need to be kept under medical surveillance for 48 hours.Specific treatments: No specific treatment.Protection of first-aiders: No action shall be taken involving any personal risk or without suitable training. If it issuspected that fumes are still present, the rescuer should wear an appropriate mask orself-contained breathing apparatus. It may be dangerous to the person providing aid togive mouth-to-mouth resuscitation. Wash contaminated clothing thoroughly with waterbefore removing it, or wear gloves.See toxicological information (Section 11)Section 5. Fire-fighting measuresExtinguishing mediaSuitable extinguishingmedia: Use an extinguishing agent suitable for the surrounding fire.Unsuitable extinguishingmedia: None known.Specific hazards arisingfrom the chemicalHazardous thermaldecomposition productsSpecial protective actionsfor fire-fightersSpecial protectiveequipment for fire-fightersDate of issue/Date of revision: Contains gas under pressure. Flammable gas. In a fire or if heated, a pressureincrease will occur and the container may burst, with the risk of a subsequent explosion.This material is very toxic to aquatic life. Fire water contaminated with this materialmust be contained and prevented from being discharged to any waterway, sewer ordrain.: Decomposition products may include the following materials:nitrogen oxides: Promptly isolate the scene by removing all persons from the vicinity of the incident ifthere is a fire. No action shall be taken involving any personal risk or without suitabletraining. Contact supplier immediately for specialist advice. Move containers from firearea if this can be done without risk. Use water spray to keep fire-exposed containerscool. If involved in fire, shut off flow immediately if it can be done without risk. If this isimpossible, withdraw from area and allow fire to burn. Fight fire from protected locationor maximum possible distance. Eliminate all ignition sources if safe to do so.: Fire-fighters should wear appropriate protective equipment and self-contained breathingapparatus (SCBA) with a full face-piece operated in positive pressure mode.: 1/10/2019Date of previous issue: 10/9/2018Version: 1.093/12

AmmoniaSection 6. Accidental release measuresPersonal precautions, protective equipment and emergency proceduresFor non-emergencypersonnel: Accidental releases pose a serious fire or explosion hazard. No action shall be takeninvolving any personal risk or without suitable training. Evacuate surrounding areas.Keep unnecessary and unprotected personnel from entering. Shut off all ignitionsources. No flares, smoking or flames in hazard area. Do not breathe gas. Provideadequate ventilation. Wear appropriate respirator when ventilation is inadequate. Puton appropriate personal protective equipment.For emergency responders : If specialized clothing is required to deal with the spillage, take note of any information inSection 8 on suitable and unsuitable materials. See also the information in "For nonemergency personnel".Environmental precautions: Ensure emergency procedures to deal with accidental gas releases are in place to avoidcontamination of the environment. Inform the relevant authorities if the product hascaused environmental pollution (sewers, waterways, soil or air). Water pollutingmaterial. May be harmful to the environment if released in large quantities. Collectspillage.Methods and materials for containment and cleaning upSmall spill: Immediately contact emergency personnel. Stop leak if without risk. Use spark-prooftools and explosion-proof equipment.: Immediately contact emergency personnel. Stop leak if without risk. Use spark-prooftools and explosion-proof equipment. Note: see Section 1 for emergency contactinformation and Section 13 for waste disposal.Large spillSection 7. Handling and storagePrecautions for safe handlingProtective measures: Put on appropriate personal protective equipment (see Section 8). Contains gas underpressure. Do not get in eyes or on skin or clothing. Do not breathe gas. Avoid releaseto the environment. Use only with adequate ventilation. Wear appropriate respiratorwhen ventilation is inadequate. Do not enter storage areas and confined spaces unlessadequately ventilated. Store and use away from heat, sparks, open flame or any otherignition source. Empty containers retain product residue and can be hazardous. Do notpuncture or incinerate container. Use equipment rated for cylinder pressure. Closevalve after each use and when empty. Protect cylinders from physical damage; do notdrag, roll, slide, or drop. Use a suitable hand truck for cylinder movement.Advice on generaloccupational hygiene: Eating, drinking and smoking should be prohibited in areas where this material ishandled, stored and processed. Workers should wash hands and face before eating,drinking and smoking. Remove contaminated clothing and protective equipment beforeentering eating areas. See also Section 8 for additional information on hygienemeasures.Conditions for safe storage,including anyincompatibilitiesDate of issue/Date of revision: Store in accordance with local regulations. Store in a segregated and approved area.Store away from direct sunlight in a dry, cool and well-ventilated area, away fromincompatible materials (see Section 10). Store locked up. Eliminate all ignition sources.Keep container tightly closed and sealed until ready for use. Cylinders should be storedupright, with valve protection cap in place, and firmly secured to prevent falling or beingknocked over. Cylinder temperatures should not exceed 52 C (125 F).Refer to ANSI/CGA G-2.1, Section 5.13 for electrical classification of anhydrousammonia storage and handling areas. Where anhydrous ammonia is stored indoors,use electrical (ventilating, lighting and material handling) equipment with the appropriateelectrical classification rating and use only non-sparking tools.: 1/10/2019Date of previous issue: 10/9/2018Version: 1.094/12

AmmoniaSection 8. Exposure controls/personal protectionControl parametersOccupational exposure limitsIngredient nameExposure limitsammoniaCalifornia PEL for Chemical Contaminants (Table AC-1) (United States).PEL: 25 ppm 8 hours.STEL: 35 ppm 15 minutes.ACGIH TLV (United States, 3/2017).TWA: 25 ppm 8 hours.TWA: 17 mg/m³ 8 hours.STEL: 35 ppm 15 minutes.STEL: 24 mg/m³ 15 minutes.OSHA PEL 1989 (United States, 3/1989).STEL: 35 ppm 15 minutes.STEL: 27 mg/m³ 15 minutes.NIOSH REL (United States, 10/2016).TWA: 25 ppm 10 hours.TWA: 18 mg/m³ 10 hours.STEL: 35 ppm 15 minutes.STEL: 27 mg/m³ 15 minutes.OSHA PEL (United States, 6/2016).TWA: 50 ppm 8 hours.TWA: 35 mg/m³ 8 hours.Appropriate engineeringcontrolsEnvironmental exposurecontrols: Use only with adequate ventilation. Use process enclosures, local exhaust ventilation orother engineering controls to keep worker exposure to airborne contaminants below anyrecommended or statutory limits. The engineering controls also need to keep gas,vapor or dust concentrations below any lower explosive limits. Use explosion-proofventilation equipment.: Emissions from ventilation or work process equipment should be checked to ensurethey comply with the requirements of environmental protection legislation. In somecases, fume scrubbers, filters or engineering modifications to the process equipmentwill be necessary to reduce emissions to acceptable levels.Individual protection measuresHygiene measuresEye/face protection: Wash hands, forearms and face thoroughly after handling chemical products, beforeeating, smoking and using the lavatory and at the end of the working period.Appropriate techniques should be used to remove potentially contaminated clothing.Wash contaminated clothing before reusing. Ensure that eyewash stations and safetyshowers are close to the workstation location.: Safety eyewear complying with an approved standard should be used when a riskassessment indicates this is necessary to avoid exposure to liquid splashes, mists,gases or dusts. If contact is possible, the following protection should be worn, unlessthe assessment indicates a higher degree of protection: chemical splash goggles and/or face shield. If inhalation hazards exist, a full-face respirator may be required instead.Skin protectionHand protectionBody protectionDate of issue/Date of revision: Chemical-resistant, impervious gloves complying with an approved standard should beworn at all times when handling chemical products if a risk assessment indicates this isnecessary. Considering the parameters specified by the glove manufacturer, checkduring use that the gloves are still retaining their protective properties. It should benoted that the time to breakthrough for any glove material may be different for differentglove manufacturers. In the case of mixtures, consisting of several substances, theprotection time of the gloves cannot be accurately estimated.: Personal protective equipment for the body should be selected based on the task beingperformed and the risks involved and should be approved by a specialist beforehandling this product. When there is a risk of ignition from static electricity, wear antistatic protective clothing. For the greatest protection from static discharges, clothingshould include anti-static overalls, boots and gloves.: 1/10/2019Date of previous issue: 10/9/2018Version: 1.095/12

AmmoniaSection 8. Exposure controls/personal protectionOther skin protectionRespiratory protection: Appropriate footwear and any additional skin protection measures should be selectedbased on the task being performed and the risks involved and should be approved by aspecialist before handling this product.: Based on the hazard and potential for exposure, select a respirator that meets theappropriate standard or certification. Respirators must be used according to arespiratory protection program to ensure proper fitting, training, and other importantaspects of use. Respirator selection must be based on known or anticipated exposurelevels, the hazards of the product and the safe working limits of the selected respirator.Section 9. Physical and chemical propertiesAppearancePhysical stateColorOdor: Gas. [Compressed gas.]: Colorless.: Pungent.: Not available.Odor thresholdpHMelting point: Approx. 11.6: -77.7 C (-107.9 F)Boiling pointCritical temperatureFlash pointEvaporation rate::::Flammability (solid, gas)Lower and upper explosive(flammable) limitsVapor pressureVapor density: Extremely flammable in the presence of the following materials or conditions: oxidizingmaterials.: Lower: 16%Upper: 25%: 114.1 (psig): 0.59 (Air 1)Specific Volume (ft 3/lb): 20.79Gas Density (lb/ft )Relative densitySolubility: 0.0481 (32 C / 89.6 to F): SPECIFIC GRAVITY (AIR 1): @ 70 F (21.1 C) 0.59: Soluble in water. Soluble in alcohol and ether.Solubility in water: 540 g/lPartition coefficient: noctanol/water: Not available.Auto-ignition temperatureDecomposition temperatureViscosity: 651 C (1203.8 F): Not available.: Not applicable.Flow time (ISO 2431): Not available.Molecular weight: 17.03 g/mole3-33 C (-27.4 F)132.85 C (271.1 F)Not available.Not available.Aerosol productHeat of combustion: -18589392 J/kgSection 10. Stability and reactivityReactivity: No specific test data related to reactivity available for this product or its ingredients.Chemical stability: The product is stable.Possibility of hazardousreactions: Under normal conditions of storage and use, hazardous reactions will not occur.Conditions to avoid: Avoid all possible sources of ignition (spark or flame). Do not pressurize, cut, weld,braze, solder, drill, grind or expose containers to heat or sources of ignition.Date of issue/Date of revision: 1/10/2019Date of previous issue: 10/9/2018Version: 1.096/12

AmmoniaSection 10. Stability and reactivityIncompatible materials: Oxidizers and Yellow Metals (brass & copper)Hazardous decompositionproducts: Under normal conditions of storage and use, hazardous decomposition products shouldnot be produced.Hazardous polymerization: Under normal conditions of storage and use, hazardous polymerization will not occur.Section 11. Toxicological informationInformation on toxicological effectsAcute toxicityProduct/ingredient nameResultSpeciesammoniaLC50 Inhalation Gas.RatDose7338 ppmExposure1 hoursIrritation/CorrosionNot available.SensitizationNot available.MutagenicityNot available.CarcinogenicityNot available.Reproductive toxicityNot available.TeratogenicityNot available.Specific target organ toxicity (single exposure)Not available.Specific target organ toxicity (repeated exposure)Not available.Aspiration hazardNot available.Information on the likelyroutes of exposure: Not available.Potential acute health effectsEye contact: Causes serious eye damage.Inhalation: Harmful if inhaled.Skin contact: Causes severe burns.Ingestion: As this product is a gas, refer to the inhalation section.Symptoms related to the physical, chemical and toxicological characteristicsEye contact: Adverse symptoms may include the following:, pain, watering, rednessInhalation: No specific data.Skin contact: Adverse symptoms may include the following:, pain or irritation, redness, blistering mayoccurDate of issue/Date of revision: 1/10/2019Date of previous issue: 10/9/2018Version: 1.097/12

AmmoniaSection 11. Toxicological informationIngestion: Adverse symptoms may include the following:, stomach painsDelayed and immediate effects and also chronic effects from

May form explosive mixtures with air. Contains gas under pressure; may explode if heated. May displace oxygen and cause rapid suffocation. Harmful if inhaled. Causes severe skin burns and eye damage. Very toxic to aquatic life. Hazard pictograms : Precautionary statements Prevention :Wear protective gloves. Wear eye or face protection.

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