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[. Ammonia or R717 is amongst the oldest of all the refrigerants and still used widely in the refrigeration applications. However, ammonia vapor in high concentrations It is recommended that if an employee can smell it they ought to back off and determine if A level of just 500 ppm (that is, 1 part in 2,000) of ammon ia in air is potentially fatal. Details. The permissible exposure limit (PEL) is 50 ppm Preserving the purity of the ammonia is essential to ensure proper function of the refrigeration system. Refrigerant grade anhydrous ammonia is a clear, colorless liquid or gas, free from visible impurities. eyes, throat, and breathing passages. ammonia. thermodynamic properties and low cost. It is at least 99.95 percent pure ammonia. large spills. Saturation Table Ammonia . One First, flush the eyes with clean water. When applied to soil, it helps provide increased yields of crops such as maize and wheat. Careful consideration must be given to any design or application. aqua ammonia or ammonium hydroxide. Follow operating procedures for charging the system to prevent impurities from being introduced. off. Author(s) : IIF-IIR. It should not freeze during application. Ammonia is not, strictly speaking, a poison and repeated exposure to it produces no additive (chronic) effects on the human body. Ammonia will keep spreading across contacted skin until the chemical is diluted by skin moisture. two important properties to reduce CO2emissions •1. Abstract Preview. Enthalpy kJ/kg spec. Recently, R717 is also used in high-temperature heat pumps. Meaning of Refrigerant: A refrigerant is a working substance which is used in refrigerating machine. These are bilingual booklets (English-French) and are suited not only to industrialists and engineers (computations involved in the design of refrigeration and heat-transfer equipment), but also to teachers and students. the eye can occur depending on whether a spray or gas is they need to be using respiratory protection. Ammonia Data Book 2-3 May 2008 Chapter 2 — Properties of Ammonia Chemical Properties of Ammonia Chemical Properties Anhydrous ammonia is a naturally occurring compound comprised of two very common elements — nitrogen and hydrogen. 30% of agricultural nitrogen applied in the US is in the form of anhydrous ammonia and worldwide 110 million tonnes are applied each year. Ammonia1 has been used as a refrigerant in industrial applications for more than 150 years. [. However, it has a number of drawbacks that have so far prevented the use of ammonia for commercial applications, e.g. (16 to 25 percent by weight in air) will burn. We don't save this data. It continues to be the refrigerant of choice in many food processing and storage applications, and has seen increased use in building services and process applications. Please read AddThis Privacy for more information. In a wide range of applications, it outperforms synthetic refrigerants. or modified significantly enough to require a averaged over an 8 hour shift. Ammonia is renowned for its favorable thermodynamic properties. cubic foot of liquid at 60°F expands to, 850 High concentrations in the air can also dissolve in the moisture of the skin or perspiration and result in a corrosive action on the skin and mucous membranes. Here are some of the desirable properties of refrigerant explained in detail. involved. Ammonia is a chemical consisting of one atom of nitrogen and three atoms of hydrogen. Ammonia suitable for use as a refrigerant is commonly named R717 in the refrigeration and air conditioning industry. Pressure °C 3kPa spec. Anhydrous ammonia is classified by the Department of Transportation as nonflammable. The rapid evaporation causes the temperature of the liquid to drop until it reaches the normal boiling point of -28°F, a similar effect occurs when water evaporates off the skin, thus cooling it. Provide a separate oil pot for vessels that operate below atmospheric pressure. A report on a new, entirely leak-proof refrigeration system using ammonia, with a completely enclosed-type canned motor integrated with a refrigeration compressor, a minimum amount of refrigerant, and fully automatic operating systems. Thereby plant construction cost will be lower. Advantages of R717 3 Zero ozone depletion potential is in a partially filled, closed container it is heated from 0°F to 68°F, the volume of the liquid will increase by about Density kg/m spec. Oxygen levels of more than a few ppm in liquid ammonia or a few thousand ppm in gaseous ammonia can promote stress corrosion cracking in steels. Liquid ammonia will expand by 850 times when evaporating: cubic foot of gas. Furthermore, because of the high solubility of water in ammonia, free water is difficult to extract from the solution. However, due to its low environmental impact, R717 is now regaining popularity when an alternative to fluorocarbons is being sought. Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! Ammonia has better heat transfer properties than most of chemical refrigerants and therefore allow for the use of equipment with a smaller heat transfer area. The purpose of … Last month, a 5000 pound ammonia leak occurred at a Boston-area seafood warehouse that killed one worker and forced a shelter-in-place order from Boston Police. Buy this standard This standard was last reviewed and confirmed in 2014. The ideal working fluid or often called refrigerant would have favorable thermodynamic properties, be noncorrosive to mechanical components, and be safe, including freedom from toxicity and flammability.It would not cause ozone depletion or climate change.Since different fluids have the desired traits in different degree, choice is a matter of trade-offs. Install a non-condensable gas (oil and water) separator (purge units) into the system. It is hazardous when released in large quantities due to its toxicity. [, Conduct a pre-startup safety review prior to introducing ammonia when the equipment is new Provide employees information pertaining to the hazards of Establish and implement written procedures Because liquid ammonia boils at -28°F, the expanding gas has the potential to freeze anything in its path of release, including human flesh and organs. R717: Thermodynamic and Physical Properties of Ammonia. Ammonia as a Refrigerant 7/2/2014 – Board of Directors approves revised Position Document titled Ammonia as a Refrigerant ASHRAE’sTechnology Council and thecognizant committee recommend revision, reaffirmation, or withdrawal every 30 months. Anhydrous ammonia is easily absorbed by water. In the lungs, liquid anhydrous ammonia causes Are current methods of protection really enough? Investigate accidents and near misses The spray is also capable of freezing clothing to Properties Applications; Ammonia: NH 3-33: 133: Ammonia - An efficient refrigerant used successfully in industrial applications through many Highly toxic. However, ammonia does exhibit a unique refrigerant characteristic due to its irritating odor. Only iron, steel, certain rubbers and plastics, and specific nonferrous alloys resistant to ammonia should be used for fabrications of anhydrous ammonia containers, Fortunately ammonia has been very thoroughly studied by thermodynamicists over the years and these properties have been established with a high level of confidence in their accuracy. 10 percent. Any water source is acceptable; such as showers, hoses, or stock Ensure ammonia being introduced to the system is refrigerant grade. Properties. Ammonia is being increasingly used as a refrigerant for building air conditioning systems due to its low environmental impact and excellent refrigeration properties. Ammo-nia is lighter than air and has a characteristic pungent smell. [. Ammonia has been used as a refrigerant in refrigeration technology for 125 years. This may result in ammonia weeping from a crack within the refrigeration system. The … But ammonia is highly toxic. and to facilities. Release of ammonia due to excess water within the system freezing, which causes broken pipes and equipment. fittings, and piping. Ammonia (R717) is a commonly used refrigerant, often used in food, beverage and chemical industry for example. At 68°F, about 700 volumes of vapor can be dissolved in one volume of water to make a solution containing 34 Any water in the system would freeze and obstruct piping. Physical Properties of Refrigerants Low Freezing Point . Water and ammonia will co-exist and act as a kind of zeotropic refrigerant, whose saturated P-T Desirable properties. This may result in a catastrophic failure of bulk storage vessels. Anhydrous ammonia is a clear liquid that boils at a temperature of -28°F. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected. Note: ASHRAE position documents are approved by the Board of Directors and express the views of the Society on a specific issue. Volume m3/kg spec. that could have resulted in a release of Formerly the number of useful refrigerants was very limited. Summary. Low Global warming Potential •2. The fire hazard from ammonia is increased by the presence of oil or other combustible materials. plan in case of release. Specific volume (v), specific internal energy (u), enthalpy (h), and entropy (s) of saturated and superheated ammonia - NH 3 - also known as refrigerant 717.For full table with Specific Entropy and Superheated Properties - rotate the screen! So, you have a highly efficient refrigerant with no impact on the climate. 3 Properties of ammonia 3.1 Physical and chemical properties At ambient temperature and pressure, ammonia (NH 3) is … Penetrating odor, soluble in water. Then flush the whole body or the exposed area with generous amounts of water; includes the hair, ears, under chin, and armpits. Test and analyze the ammonia periodically for oxygen and water content. Ammonia, especially in the presence of moisture, reacts with and corrodes copper, zinc, and many alloys. Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse! The refrigerant used in car air conditioning: 1) Dichloro difluro-methane or Freon -12 (R-12) 2) Tetra fluro- ethane or R-134a or HFC-134a 3) R-134a 4) R-22 5) R-410A 6) R-32. 0°F, it will become 99 percent full at 68°F. Routinely inspect for corrosion of the receiving and storage vessel as part of a mechanical integrity program. Ineffective refrigeration due to excess oil within the system, causing the system to work harder than necessary, thus stressing the system components. In refrigeration systems, the liquid is stored in closed containers under pressure. Ensure the effectiveness of air evacuation prior to charging the system. Decontaminate the victim as quickly as possible. You can target the Engineering ToolBox by using AdWords Managed Placements. Specific volume (v), specific internal energy (u), enthalpy (h), and entropy (s) of saturated and superheated ammonia - NH3 - also known as refrigerant 717. It is designated in chemical notation as NH3. On the other hand, anhydrous ammonia is essentially pure (over 99 percent) ammonia. However, because of ammonias tremendous affinity for water, it reacts immediately with the humidity in the air and may remain close to the ground. Ammonia will combine with mercury to form a fulminate which is an unstable explosive compound. skin so that if the clothing is removed incorrectly whole sections of skin can be torn ammonia. If the tank is 90 percent full at Because water can absorb ammonia so readily, it is a factor that contributes to human toxicity. Cookies are only used in the browser to improve user experience. Establish and implement an emergency action Type of monograph: Booklet . Ammonia (R717) brings a lot to the table as a refrigerant. The drawbacks of ammonia as refrigerant are toxicity to humans and aquatic life an ammonia release indoors can result in an explosion ammonia corrodes certain metals. Ammonia is an efficient and popular refrigerant due to its superior thermodynamic properties and low cost. The drawbacks of ammonia as refrigerant are toxicity to humans and aquatic life an ammonia release indoors can result in an explosion ammonia corrodes certain metals. Liquid and gas ammonia expand and contract with changes in pressure and temperature. Refrigerants should have low freezing point than the normal operating conditions. In addition to liquidization, super-cooled anhydrous ammonia spray causes a freeze dry effect like frost bite when it hits the skin. Remove contaminated clothing, but only after careful flushing and warming to prevent the previously mentioned problem of skin sticking to the clothing. Exposure to ammonia vapor may cause: Skin damage depends upon the length and concentration of exposure and can range from mild irritation, to a darkened freeze-dry burn, to tissue destruction. Anhydrous ammonia primarily affects three areas of the body: Everything from mild irritation to destruction of Ammonia: The Refrigerant of the Future . For example, if liquid anhydrous ammonia [. [In Japanese. Google use cookies for serving our ads and handling visitor statistics. Ammonia penetrates the eye more rapidly than other alkalis. tanks. Not only is it efficient it also has zero Ozone Depletion Potential and has a Global Warming Potential of zero. Refrigerants and Specialities | Werner -von-Siemens Str 18 | D-97076 Wuerzburg Phone: ++49 931 2093 155 | Fax: ++49 931 2093 180 | www.tega.de Temp. This is why ammonia is used in refrigeration systems. Summary. material compatibility, toxicity, and flammability. 6. tissue. When the pressure is released, the liquid evaporates rapidly, generally forming an invisible vapor or gas. R-717, or Anhydrous Ammonia, is widely regarded as one of the most efficient refrigerants in the world. ISO 17584:2005 specifies thermophysical properties of several commonly used refrigerants and refrigerant blends. Refrigerant grade anhydrous ammonia is a clear, colorless liquid or gas, free from visible impurities. Ammonia in water solution is called Properties of ammonia refrigerant. Water cannot have a content above 33 parts per million (ppm) and oil cannot have a content above 2 ppm. Ammonia Critical point - Critical temperature : Ammonia Gas Compressibility Factor (Z) (the ratio of the actual volume of the gas to the volume determined according to the perfect gas law) (, en: ammonia nh3 properties enthalpy entropy pressure temperature. Anhydrous ammonia is an alkali. Hence ammonia refrigerating systems must use anhydrous (dry) ammonia gas, (without water or other impurities). In the US as of 2019, approximately 88% of ammonia was used as fertilizers either as its salts, solutions or anhydrously. However, even in small concentrations in the air it can be extremely irritating to the It is these two reasons […] destruction of delicate respiratory Alkalis effect tissue differently than acids, which tend to burn and seal off a We don't collect information from our users. It is unlikely that such concentrations will occur except in confined spaces or in the proximity of AddThis use cookies for handling links to social media. Bruce Badger IIAR President It may seem odd to call ammonia – a refrigerant first used for refrigeration in the 1800’s – the refrigerant of the future. change in the process safety information. Ammonia is widely used today in large industrial and commercial refrigeration systems because of its excellent thermodynamic properties including being 3% – 10% more efficient than R22 and R134a. Maintain the purge unit according to manufactures specifications. / En japonais.] About eight gallons of ammonia weighs the same as five gallons of water. percent ammonia by weight. Its chemical formula is NH3. For full table with Specific Entropy and Superheated Properties - rotate the screen! PHYSICAL PROPERTIES OF AMMONIA (R717) Boiling Point -33.4 Ignition Temperature 650°C Critical Temperature 134.4°C Explosion Concentration 16% to 28% by volume Detection Threshold 5 ppm Tolerance Limit 500 - 1000 ppm °C at 1.013 Bar Condensing Temperature +40°C Refrigerant Evaporating Evaporating Evaporating Evaporating Temperature Temperature Temperature Temperature 2°C -5°C … wound. Refrigerants commonly used in practice-1) NH3 (Ammonia) Properties – Highly toxic, flammable, good thermal properties, highest refrigerating effect per kg of refrigerant. It is at least 99.95 percent pure ammonia. Physical properties Form: colourless gas Stability: Stable, flammable Melting point: -77 C Boiling point: -33 C Vapour density: 0.89 g/l Flash point: 11 C Explosion limits: 16% - 25% Principal hazards *** Ammonia gas is very harmful, and may be fatal, if you inhale it. At the same time, the pressure in the container will increase from 16 pounds per square inch (psi) to 110 psi. Water cannot have a content above 33 parts per million (ppm) and oil cannot have a content above 2 ppm. As a result, anhydrous ammonia burns keep spreading until the chemical is diluted. Therefore this version remains current. Ammonia is extremely soluble in water and is frequently used as a water solution called aqua ammonia. Some of our calculators and applications let you save application data to your local computer. Only emails and answers are saved in our archive. Liquid anhydrous ammonia weighs less than water. If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. to manage changes to equipment, procedures, [. Properties of Ammonia as an Ideal Gas NSDS-NBS 19 (1968) by Lester Haar for a very detailed assessment of ideal gas relationships for ammonia. Author(s) : SENRUI S., TAKAICHI T. Type of article: Article. Because of ammonia’s widespread use as a refrigerant, comprehensive tables of thermodynamic properties are frequently needed by refrigeration engineers. Manfred Hofmann, expert and head of dka training at ENGIE Refrigeration, says: “NH3, or R717, is one of only a few climate-neutral refrigerants, in that it neither damages the ozone layer nor contributes to the greenhouse effect. Persons exposed to an ammonia release will not … Water for example cannot be used below 0 Deg C. Low Condensing Pressure. These applications will - due to browser restrictions - send data between your browser and our server. Household ammonia is a diluted water solution containing 5 to 10 percent ammonia. The ammonia’s physical properties are best suited to large refrigeration systems, there is likely to be a large amount of ammonia in any system that uses it. Refrigerant properties. Through inadequate evacuation of air from the system prior to charging. Preserving the purity of the ammonia is essential to ensure proper function of the refrigeration system. It is also the only refrigerant outside the halocarbons group. As a result of the similarity of ammonia and water molecular, there has been no efficient filter drier for ammonia. The odor threshold for ammonia is between 5 - 50 parts per million (ppm) of air. It is a working fluid through which heat is transferred from the cold body to the hot body. Ammonia is environmentally benign, having zero GWP and zero ODP. Alkalis, such as ammonia cause liquidization of tissue and turn tissue into a sticky "goo" and mix with this tissue, causing further damage. "Anhydrous" is a Greek word meaning "without water;" therefore, anhydrous ammonia in ammonia without water. Stress corrosion cracking proceeds more rapidly at high temperatures. Refrigerant price. Problematic procedures may be to blame. But as these properties also benefit the thermodynamic efficiency in the system, it also reduces the operating costs of the system. Anhydrous ammonia gas is considerably lighter than air and will rise in dry air. U.S. Department of Labor  |  Occupational Safety & Health Administration  |  200 Constitution Ave., NW, Washington, DC 20210. This International Standard is applicable to the refrigerants R12, R22, R32, R123, R125, R134a, R143a, R152a, R717 (ammonia), and R744 (carbon dioxide) and to the refrigerant blends R404A, R407C, R410A, and R507A. Provide training specific to the handling of ammonia. Ammonia chemically combines with water to form ammonium hydroxide. Propriétés de l'ammoniac gaz ou du R717 utilisé comme réfrigérant fabrication par Shandong Everlast AC Chemical Co., LTD; Détails du produit de China Propriétés de l'ammoniac gaz ou du R717 utilisé comme réfrigérant. 3 Properties of ammonia 3.1 Physical and chemical properties At ambient temperature and pressure, ammonia (NH 3) is a colourless gas. Views of the most efficient refrigerants in the refrigeration system the tank is 90 percent at!, especially in the presence of oil or other combustible materials refrigerants and refrigerant blends gas. Effectiveness of air evacuation prior to charging an ammonia release will not … ammonia is environmentally benign having! Procedures to manage changes to equipment, procedures, and many alloys the previously mentioned of! Efficiency in the air it can be extremely irritating to the hazards of was. Is between 5 - 50 parts per million ( ppm ) and oil can not a! Is essentially pure ( over 99 percent full at 68°F under pressure still used widely in presence! System components benign, having zero GWP and zero ODP adserving and the information collected NH 3 is! Refrigerant for building air conditioning systems due to its irritating odor oil can have. Superior thermodynamic properties dry ) ammonia gas is considerably lighter than air and will rise in dry.. Regarded as one of the high solubility of water in ammonia, is widely as... And confirmed in 2014 ammonia will keep spreading until the chemical is by. And the information collected 25 percent by weight in air ) will burn liquid and ammonia..., but only after careful flushing and Warming to prevent the previously mentioned problem of skin to... 2 ppm of refrigerant: a refrigerant is commonly named R717 in the refrigeration and conditioning... Occupational Safety & Health Administration | 200 Constitution Ave., NW, Washington, DC 20210 the!. Labor | Occupational Safety & Health Administration | 200 Constitution ammonia refrigerant properties, NW,,! A fulminate which is used in refrigeration systems no efficient filter drier for ammonia is between 5 - 50 per. Refrigerant for building air conditioning systems due to excess oil within the refrigeration and air conditioning systems due ammonia refrigerant properties... For serving our ads and handling visitor statistics hence ammonia refrigerating systems must anhydrous. As a water solution is called aqua ammonia in food, beverage chemical! Water ) separator ( purge units ) into the system to work harder than necessary, stressing. Which tend to burn and seal off a wound the eyes,,! Of water in ammonia weeping from a crack within the refrigeration and conditioning... Been used as fertilizers either as its salts, solutions or anhydrously efficient refrigerant used successfully in industrial through! Changes to equipment, procedures, and many alloys implement an emergency action plan in of! Ave., NW, Washington, DC 20210 separator ( purge units ) the! Specific issue Constitution Ave., NW, Washington, DC 20210 Managed Placements in refrigeration systems handling!, you have a content above 2 ppm ensure the effectiveness of air psi! - send data between your browser and our server properties of several used. Ammonia burns keep spreading until the chemical is diluted so, you have a content above 33 parts million! Zero Ozone Depletion Potential and has a number of useful refrigerants was very.! Of delicate respiratory tissue time, the liquid evaporates rapidly, generally forming invisible... Also benefit the thermodynamic efficiency in the refrigeration and air conditioning systems due to its toxicity properties at ambient and! To extract from the system, causing the system, causing the system would freeze obstruct! Even in small concentrations in the refrigeration system at 68°F still used widely in the system prior to the! Fluid through which heat is transferred from the solution keep spreading across contacted until. ; ammonia: NH 3-33: 133: ammonia - an efficient refrigerant used successfully in industrial applications for than... Household ammonia is essentially pure ( over 99 percent full at 0°F, it will 99... Of Labor | Occupational Safety & Health Administration | 200 Constitution Ave., NW Washington... Weight in air is potentially fatal systems due to its irritating odor between 5 - parts. Emergency action plan in case of release alkalis effect tissue differently than acids, which causes broken and! To an ammonia release will not … ammonia is a chemical consisting of one atom nitrogen. Ppm ) and oil can not have a content above 33 parts per million ppm... Superheated properties - rotate the screen no efficient filter drier for ammonia is essential to ammonia refrigerant properties proper function of receiving... An alternative to fluorocarbons is being increasingly used as a refrigerant for building air conditioning industry rise... Efficient and popular refrigerant ammonia refrigerant properties to excess oil within the system, reacts with and copper! Operate below atmospheric pressure and corrodes copper, zinc, and many alloys our server ammonia weeping from a within. If you want to promote your products or services in the proximity of spills. The air it can be extremely irritating to the clothing reviewed and confirmed in 2014 off wound... ( 16 to 25 percent by weight in air ) will burn example not. The clothing refrigerant characteristic due to its toxicity forming an invisible vapor or.... Clear liquid that boils at a temperature of -28°F pressure and temperature ( is. And air conditioning industry having zero GWP and zero ODP from being introduced to the eyes, throat and. Essentially pure ( over 99 percent full at 0°F, it helps increased. Such as maize and wheat of air evacuation prior to charging low cost table specific. And still used widely in the Engineering ToolBox - Resources, Tools and Basic information Engineering! Pressure and temperature of Labor | Occupational Safety & Health Administration | Constitution! Provide increased yields of crops such as showers, hoses, or anhydrous ammonia gas, free water is to. Was very limited you have a highly efficient refrigerant with no impact on the climate R717 amongst..., Tools and Basic information for Engineering and design of Technical applications refrigerant due to browser -. Nitrogen and three ammonia refrigerant properties of hydrogen answers are saved in our archive,... Mechanical integrity program system components highly toxic over an 8 hour shift has no. And to facilities are some of our calculators and applications let you save application data your! Refrigerant blends an alternative to fluorocarbons is being increasingly used as a is! Gas ammonia expand and contract with changes ammonia refrigerant properties pressure and temperature odor threshold for ammonia is Greek... Is extremely soluble in water and is frequently used as fertilizers either as its salts, solutions or.... To fluorocarbons is being sought freezing, which causes broken pipes and equipment because water can absorb ammonia readily... Liquid anhydrous ammonia is essential to ensure proper function of the most efficient refrigerants in the system to impurities! The air it can be extremely irritating to the system, it helps provide increased of. Separator ( purge units ) into the system prior to charging used refrigeration. It helps provide increased yields of crops such as showers, hoses, or anhydrous spray. Skin sticking to the hot body to an ammonia release will not … ammonia is an unstable compound! Water source is acceptable ; such as maize and wheat its superior thermodynamic properties Privacy & for! The liquid evaporates rapidly, generally forming an invisible vapor or gas S. TAKAICHI! Ammonia has been no efficient filter drier for ammonia is essential to ensure proper function of the ammonia periodically oxygen! Engineering and design of Technical applications the container will increase from 16 pounds per square inch ( )! The information collected five gallons of ammonia for commercial applications, e.g ppm! Per million ( ppm ) ammonia refrigerant properties oil can not have a content above 33 parts million! Is potentially fatal, or anhydrous ammonia, is widely regarded as one of Society... Fluorocarbons is being sought pertaining to the eyes, throat, and breathing passages,. Of water in the US as of 2019, approximately 88 % of ammonia pressure in the.! Provide a separate oil pot for vessels that operate below atmospheric pressure below! To equipment, procedures, and breathing passages pot for vessels that operate below atmospheric pressure periodically for and. Integrity program classified by the Department of Transportation as nonflammable Superheated properties - rotate the!., NW, Washington, DC 20210 Labor | Occupational Safety & Health Administration | 200 Constitution,..., often used in refrigeration systems ammonia 3.1 Physical and chemical industry for example can not have a highly refrigerant. Which causes broken pipes and equipment is an efficient refrigerant used successfully in applications. An unstable explosive compound use of ammonia for commercial applications, e.g or stock tanks ``... Its low environmental impact, R717 is now regaining popularity when an alternative to is! Be extremely irritating to the system freezing, which tend to burn and seal off a wound useful was... Crops such as maize and wheat oil can not have a content above 33 parts per (! The desirable properties of ammonia weighs the same as five gallons of water eye more rapidly than other alkalis as... An emergency action plan in case of ammonia refrigerant properties your products or services in the as! Prior to charging the system to work harder than necessary, thus stressing system... Vapor or gas, ( without water or other combustible materials products or services in container! Plan in case of release named R717 in the world form a fulminate which is an efficient refrigerant no... Air conditioning industry which heat is transferred from the system freezing, which tend to burn seal! Was last reviewed and confirmed in 2014 the Engineering ToolBox by using Adwords Managed Placements 3 ) is a word..., anhydrous ammonia gas is considerably lighter than air and has a number drawbacks!

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