Copper Corrosion is the degradation of metal caused by a reaction with the environment, such as oxidation and chemical attack of the metallic surface. Copper is susceptible to attack from sulfur-containing gases. The result is the formation of a nonproductive layer on the material surface. Unprotected copper tubing will continue to react with the contaminant and corrode. Under severe, prolonged conditions, the copper tubing continues to corrode until the integrity of the equipment is jeopardized. Unprotected copper in polluted industrial environments can lead to failure of the refrigeration system. Sulfur- and nitrogen-based electrolytes are often the cause of accelerated corrosion in industrial environments.
Details:
1. Copper tube Coil for refrigerator 2. Copper tube Coil coating For AC 2. High quality 3. Low price 4. ISO, CE
Why? - Anti Corrosive PAINT Technology for Ammonia Plant By : Automotive Solutions Anhydrous Ammonia (NH3) is commonly used as a coolant in large industrial refrigeration systems. While ammonia refrigeration has long been a standard in the food / beverage industry, it is also now found in pharmaceuticals production, in air-conditioning equipment for some public buildings and in electric power generation plants. Ammonia is a toxic gas, though, and the proper safety monitoring procedures and equipment must be in place at all times to avoid serious accidental injury or death…
Ammonia refrigeration is considered cost efficient, and has been credited with keeping the price of food at affordable levels in the U.S. It also plays a role in the floral industry, as well as in various types of cold storage warehouses and in ice production. Ammonia industry experts say its use in refrigeration systems is environmentally friendly, and it does not destroy ozone or contribute to the greenhouse effect linked to global warming.
A major problem in the process industry is the corrosion of metals in pipes, valves and other parts of the equipment constructions. This write up indicates acceptable combinations of more or less aggressive fluids and commonly used materials like ammonia.
What is Ammonia Ammonia (NH 3) is one of the most commonly produced industrial chemicals. It is used in industry and commerce, and also exists naturally in humans and in the environment. Ammonia is essential for many biological processes and serves as a precursor for amino acid and nucleotide synthesis. In the environment, ammonia is part of the nitrogen cycle and is produced in soil from bacterial processes. Ammonia is also produced naturally from decomposition of organic matter, including plants, animals and animal wastes
Some chemical/physical properties of ammonia are:
At room temperature, ammonia is a colorless, highly irritating gas with a pungent, suffocating odor
In pure form, it is known as anhydrous ammonia and is hygroscopic (readily absorbs moisture)
Ammonia has alkaline properties and is corrosive
Ammonia gas dissolves easily in water to form ammonium hydroxide, a caustic solution and weak base.
Ammonia gas is easily compressed and forms a clear liquid under pressure.
Ammonia is usually shipped as a compressed liquid in steel containers.
Ammonia is not highly flammable, but containers of ammonia may explode when exposed to high heat.
Exposure Risks – Ammonia Reliable ammonia detection ensures both personnel safety and product quality. The nose may detect ammonia in concentrations as low as 5 ppm. Typical exposure symptoms are irritation of the eyes, throat and respiratory organs. At a few hundred ppm, irritation of the mucous membrane of the eyes occurs. Breathing is intolerable at about 1000 ppm and vision may be impaired. The risk of fatality rapidly increases at concentrations of around 2500 ppm.
In addition to personal injury, ammonia accidents can result in considerable equipment, materials, product and property losses. According to the EPA and Factory Mutual, ammonia releases have resulted in several catastrophic losses ranging up to several million dollars. Such losses have resulted from ammonia contamination to product, as well as explosions because ammonia is potentially combustible.
Ammonia Leak Can Be Due To Corrosion Because ammonia may cause an explosion when mixed with air, proper safe guards should be taken to minimize accidental release of the gas. Leaks create a serious fire and life safety hazard. Leaks also be caused by:
This primer will give you about 36 months minimum protection to freshly shot blasted steel depending on the prevailing condition. The Zinc pigment in dry film renders excellent protection to steel surface, tanks, pipelines and plant components in both interior and exterior exposed condition. It also provides Cathodic protection to steel and gives good resistance to undercoating at damaged areas. It is useful with heavy duty protective systems. Can withstand Heat up to 300 Degree. Must be top coated with Paint to get maximum results.
Anhydrous Ammonia (NH3) is commonly used as a coolant in large industrial refrigeration systems. While ammonia refrigeration has long been a standard in the food / beverage industry, it is also now found in pharmaceuticals production, in air-conditioning equipment for some public buildings and in electric power generation plants. Ammonia is a toxic gas, though, and the proper safety monitoring procedures and equipment must be in place at all times to avoid serious accidental injury or death…
Ammonia refrigeration is considered cost efficient, and has been credited with keeping the price of food at affordable levels in the U.S. It also plays a role in the floral industry, as well as in various types of cold storage warehouses and in ice production. Ammonia industry experts say its use in refrigeration systems is environmentally friendly, and it does not destroy ozone or contribute to the greenhouse effect linked to global warming.
A major problem in the process industry is the corrosion of metals in pipes, valves and other parts of the equipment constructions. This write up indicates acceptable combinations of more or less aggressive fluids and commonly used materials like ammonia.
