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  • Looking for an Alternative Yellow Metal Corrosion Inhibitor
    For the last thirty years, benzotriazole and its derivatives have dominated industrial yellow metal corrosion inhibitors. By far, the most popular of these has been tolyltriazole. It has become the industry standard and is, today, usually the only copper corrosion inhibitor considered by water
  • The Use of Inhibitors for Chmical Cleaning of Industrial Equipment (.pdf)
    to the longevity of this costly equipment is the maintenance and routine cleaning of the equipment for the removal of scale and deposits. Inorganic acids, organic acids and chelating solvents are typically employed for this purpose. The addition of corrosion inhibitors to reduce attack on the base metal
  • Preventing Corrosion in Cooling Systems
    the concern of degraded, acidic uninhibited ethylene glycol and its effects on metals. The latter is much more corrosive towards metals. Protecting against corrosion. In general, corrosion can be reduced through pH control and corrosion inhibitor use. The inhibitors attach to the metal surfaces
  • Avoiding Galvanic Corrosion
    >Application Notes. Avoiding Galvanic Corrosion. Back to List. Avoiding Galvanic Corrosion. When selecting components for your cooling loop, you must consider their material compatibility as well as their individual performance. Although an aluminum cold plate paired with a copper-tubed heat exchanger might
  • Cause and Prevention of Galvanic Corrosion in Aluminium
    Four conditions must be present for galvanic corrosion to occur: o Cathode - the more noble or least active metal. This metal has current discharge properties and will be protected from corrosion by the presence of the anode metal. Cathode examples: copper, gold, silver, nickel. o Anode - the least
  • Aluminum Corrosion Resistance for Cold Plates and Plate-Fin Heat Exchangers
    and typically involve the recirculation of the same fluid. One fluid that should not be used in aluminum cold plates and heat exchangers is water. Tap water, in particular, can contain active ions, such as copper, bicarbonates, chlorides, and/or other impurities that facilitate corrosion. Plus, over
  • Forty Years of Corrosion Solutions: A Retrospective View of the Chemical Process Industries (.pdf)
    for. external steam and power. The emphasis on reducing pollution has caused a variety of initiatives that have impacted the CPI. Restrictions on the release of chromates to the environment have resulted in an almost complete phase. out of these compounds as corrosion inhibitors. This has resulted
  • Passivate Lead Screws for Extended Service Life
    of a hard non-reactive surface film that inhibits further corrosion. This layer is usually an oxide or nitride that is a few atoms thick. Under normal conditions of pH and oxygen concentration, passivation is seen in such materials as aluminum, magnesium, copper, stainless steel, titanium, and silicon

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