NALCOOL 2000 Nitrite based Diesel Engine Corrosion & Scale Inhibitor - ChemEqual

Tropical coolants are water based need coolant additives for mineral salt suppression that may negatively affect heat transfer operations and corrode/scale inner walls of cooling systems. The Cooling System is itself a very aggressive environment and is subjected to a small volume of coolant that is propelled through the system at very high velocity at extremes of temperatures that can easily cause scaling and corrosion to metal components leading to equipment failure at any time.

NALCOOL 2000 manufactured by NALCO is a coolant corrosion inhibitor blend made from Sodium Nitrite, Sodium Tetraborate, Sodium Metasilicate, Sodium Mercaptobenzothiazole that functions as a protective, film-forming corrosion inhibitor and scale suppressant to keep engines clean and free from scale, and reduces downtime and maintenance costs. The product protects cooling systems against corrosion, liner pitting, cavitation-erosion, mineral scale deposits and electrolysis. In addition, it helps reduce the effect of oxidizing agents that are commonly dissolved in most tropical coolants.

It has been designed for all common engine cooling systems and is ideal to protect ferrous metals, copper & its alloys, aluminium etc. as well as rubber gaskets, ‘O’rings and non-metallic components within the cooling system. NALCOOL 2000 is available in liquid form making it easy to use and apply, fully compatible with water based coolants and Mono Ethylene Glycol antifreeze. It is chromate free and has been tested internationally to maintain a high degree of heat transfer efficiency & long engine life.

Product Features & Benefits:

  s  Designed to protect cast iron diesel engine cooling systems

  s  Contains additives to protect against sludge and mineral scale formation

  s  Prevents overheating

  s  Effective against liner pitting and cavitation erosion

  s  Liquid, safe & easy to apply formulation

  s  Not harmful to radiator or heater connecting hoses, diesel liner seals and ‘O’rings

  s  Recommended and used by major diesel engine manufacturers throughout the world

NALFLEET NALCOOL 2000 is the perfect corrosion & scale inhibitor for all types of heat transfer fluids in small auxiliary diesel engines containing aluminium components.

ChemEqual is a vast online specialty chemical database and NALCOOL 2000 and equivalent compositions of coolant corrosion inhibitors can be searched here from among a wide range of global suppliers.

Metal Passivation using Rodine 85 for Sulfuric Acid Pickling - ChemEqual

Derusting and descaling operations on industrial metal components require the use of strong mineral acids like sulfuric acid to maintain surface quality. It employs the use of acid baths for oxidative removal of alkali scales and mineral oxide deposits. But mineral acids have a tendency to corrode metal surfaces as well rendering them distorted by formation of pits and loss of base metal.

To retard the corrosive nature of acids, the pickling liquor used in acid vats is primarily composed of a pickling acid such as sulfuric acid mixed with an acid corrosion inhibitor. These inhibitors do not reduce the efficiency of the liquor but tend to passivates the base metal surface preventing pitting and corrosion. These passivating chemicals greatly reduce maintenance costs and extend equipment life while optimizing acid utilization and quick operations.

Rodine 85 is a low foaming soluble liquid corrosion inhibitor specifically designed for acid baths that use sulfuric acid as the pickling reagent. It is a synergistic organic blend of 1,3-Diethyl Thiourea, Formaldehyde, substituted Triazine & O-Toluidine, Propargyl Alcohol and detergent that is effective on a wide range of metal surfaces and can be ideally dozed over a wide range of acid concentrations. . Rodine 85 serves as an effective inhibitor for phosphoric and acetic acids, as well as sulfamic, citric, oxalic, and sodium bisulfate solutions in pickling and industrial cleaning operations.

It is recommended that dosage of Rodine 85 to be used for pickling should always be in percent by volume of the concentrated acid, regardless of the degree of acid dilution used. Ideal concentration ranges from 0.05 to 0.30 percent by volume of the diluted acid. In addition, it is also recommended that Rodine 85 inhibitor be used at a concentration not less that 0.5% by volume of the concentrated liquid acid or not less that 0.5% by weight of the concentrated solid acid, regardless of the temperature of the industrial cleaning operation.

ChemEqual is the largest online database for chemicals and their equivalents and Rodine Acid Inhibitors can be easily searched and enquired here.