NALCOOL 2000Corrosion Inhibitor

Chemtex Speciality Limited is a public limited organization involved in the manufacturing of a diverse range of Corrosion

Inhibitor products. Among these, Nalcool 2000 stood out as an effective and most used product that Chemtex manufactures.

NALCOOL 2000

An efficient corrosion inhibitor that finds use in many applications

Here, we will get enlightened about Nalcool 2000 and its applications

But prior to that, we need to have an understanding about how and why corrosion occurs and the role of corrosion inhibitors.

What is Corrosion?

• Corrosion may be considered to be the deterioration of materials, specially metals, by chemical interaction with their environment.

• It is regarded as the electrochemical oxidation of metal in reaction with an oxidant such as oxygen

• Corrosion can be concentrated locally to form a pit or crack, or it can extend across a wide area corroding the surface more or less uniformly

• It brings about the degradation of the useful properties of materials and structures including strength, appearance and permeability to liquids and gases

What is Corrosion?

• The consequences of corrosion are many and diverse and the effects of these on the efficient operation of equipment or structures are often more critical than the simple loss of a mass of metal

• Few of the consequences are noted below:– Reduction of metal thickness leading to loss of mechanical strength– Reduced value of goods due to deterioration of appearance– Loss of time in availability of profile-making industrial equipment– Hazards or injuries to people arising from structural failure or breakdown– Perforation of vessels and pipes allowing escape of their contents and

possible harm to the surroundings– Loss of technically important surface properties of a metallic component– Mechanical damage to valves, pumps, etc, or blockage of pipes– Contamination of fluids in vessels and pipes

How to prevent corrosion?

• Corrosion can be controlled in different ways, of which few are noted below:-

– Conditioning the metal: This can be carried out in two ways:• Coating the metal for the sake of interposing a corrosion resistant coating between

metal and environment• Alloying the metal to produce a more corrosion resistant alloy

– Conditioning the corrosive environment: This can be carried out in two ways:• By removal of oxygen – Eliminating oxygen can reduce the chances of occurrence

of corrosion• Applying Corrosion Inhibitors - A chemical additive, which, when added to a

corrosive aqueous environment, decreases the rate of metal wastage

– Electrochemical control : The rate of corrosion reactions may be controlled by passing anodic or cathodic currents into the metal

Corrosion Inhibitors

• Historically, inhibitors manifest a great acceptance as the only way to fight against corrosion problem in the industries owing to its superior anticorrosive properties.

• Corrosion Inhibitors can be categorized with respect to their chemical nature as organic or inorganic and the mechanism of action as anodic, cathodic or mixed.

• Anodic inhibitors play its role by forming an oxide film on the metal surface resulting in a large anodic shift of the corrosion potential.

• This shift force the metallic surface into region of passivation and hence they are referred to as passivator, whereas cathodic inhibitors slow down the cathodic reactions to limit the diffusion of reducing ions to the surface of the metals.

• On the other hand, mixed inhibitors work by reducing both anodic and cathodic reactions.

NALCOOL 2000

• Classified as a mixed inhibitor as it exhibits the properties of both anodic and cathodic inhibitors

• Nalcool 2000 serves to be a multipurpose nitrite based corrosion inhibitor designed specially for inhibiting rusting or corrosion of metal by the formation of a passive coating of protective film on the metal surface

• Nalcool 2000 consists of a combination of ferrous and non-ferrous corrosion inhibitor, scale inhibitor, non-carbonate buffer, dispersant and leak detection dye

• Nalcool 2000 has a varied range of applications. It is used as - – Coolant Corrosion Inhibitor– Cooling Water Corrosion Inhibitor

NALCOOL 2000

• Nalcool 2000 underlines many key benefits and features which are as follows:-

– Multi-metal corrosion protection– Scale prevention– Leakage and burst protection– Saves power more than 30%– Temperature resistance – 29 deg C to 215 deg C– Extends system life– Enhances system efficiency

Applications of Nalcool 2000

AUTOMOBILES

Corrosion through electrolysis is a common problem faced while using normal coolant.

Corrosion is identified by leaking coolant, appearance of black holes on the heater, etc.

It can be usually tackled by using some sort of inhibitor along with the coolant.

Nalcool 2000 serves as an effective corrosion inhibitor that is used as a Coolant corrosion inhibitor.

COOLING TOWERS

Corrosion and scale are significant problems in Cooling Towers.

Requires yearly acidic treatment to remove scale.

Industrial cooling tower water traditionally is treated with chemical corrosion and scale inhibitors

Nalcool 2000 serves as an effective corrosion inhibitor that is used as a Cooling Water Treatment chemical.

Nalcool 2000 – Corrosion Inhibitor is formulated to inhibit different types of corrosion and is available in various compositions and pack sizes to suit different industrial

applications

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