Ammonia is also flammable at concentrations of approximately 15% to 28% by volume in air. Additionally, impurities in the ammonia system also result in ineffective refrigeration because of excess oil in the system. Ammonia is a toxic refrigerant, and it is also flammable at certain concentrations. Safe management of ammonia refrigeration systems January 2016 Page 5 of 49 INTRODUCTION 1. Exposure to 300 parts per million (ppm) is immediately dangerous to life and health. Refrigerant poisoning happens when someone is exposed to the chemicals used to cool appliances. Ammonia is considered a high health hazard because it is corrosive to the skin, eyes, and lungs. Ammonia is a dangerous refrigerant and 65% of Canada's ice arenas still use it. Products are easily contaminated by ammonia leaks, and mere exposure can result in costly losses and repurchases. Ammonia in Refrigeration Systems –Ice Arenas 1 | P a g e Ammonia in Refrigeration Systems in Ice Arenas The majority of ice arenas and curling rinks in Canada use ammonia as a refrigerant in their refrigeration systems to cool the floors in their rinks and subsequently allow applied water to … For information on preparedness and response (e.g., for first responders and emergency medical … Is it dangerous if a fridge leaks freon? When mixed with lubricating oils, its flammable concentration range is increased. Refrigerant abuse is commonly called “huffing.” The chemical is often inhaled from an appliance, a container, a rag, or a bag with the neck held tightly closed. That is why it has to be handled with care, and all ammonia systems have to be designed with safety in mind. It is a very powerful respiratory irritant, and could cause death in large doses. 3 Properties of ammonia 3.1 Physical and chemical properties The ammonia itself is also very toxic and is corrosive to the eyes, skin, and lungs. Annhydrous ammonia is especially dangerous, but strong solutions of aqueous ammonia are as well. A copy of the The Facts About Ammonia (General Information) is available in Adobe Portable Document Format (PDF, 63 KB, 3pg.). Exposure to 300 parts per million (ppm) is immediately dangerous to life and health. In a wide range of applications, it outperforms synthetic refrigerants. It is also commonly used as an industrial refrigerant for cold storage facilities and meat-packing plants. Ammonia is also flammable at concentrations of approximately 15% to 28% by volume in air. Exposure to 300 parts per million (ppm) is immediately dangerous to life and health. Limited exposure — for example, a spill on your skin or breathing near an open container — is only mildly harmful. Ammonia1 has been used as a refrigerant in industrial applications for more than 150 years. Many arena plants are far past their operating life. It continues to be the refrigerant of choice in many food processing Ammonia refrigeration systems present potential risks to factory workers, owners, and consumers. * 2% water equals a 1 F rise in suction temperature which equal 2.5% to 3% of lost Inhaling these fumes on purpose to “get high” can be very dangerous. The Facts About Ammonia General Information. It is at least 99.95 percent pure ammonia. Ammonia is one of the early chemicals to secure a lasting role as a refrigerant. From a purely personal perspective, as opposed to an ecological one, and for electric household refrigerators, most likely not. If heated, it can explode. ... Refrigerant grade anhydrous ammonia should be 99.95% pure (33 ppm or less). Today, Danfoss is a leader in safe ammonia components for industrial refrigeration. 0.2% water may protect against stress corrosion cracking in low pressure vessels by scavenging oxygen. It is also the only refrigerant outside the halocarbons group, still being used to a great extent. Ammonia Gas or Refrigerant R717. Ammonia (NH3) has been used in industrial refrigeration for over 100 years, offering an energy-efficient refrigerant option with GWP and ODP scores of zero. Refrigerant grade anhydrous ammonia is a clear, colorless liquid or gas, free from visible impurities. Good article This is a time bomb of a disaster waiting to happen. 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