All-In-One Boiler Chemicals

Maintaining a water system poses an arduous challenge. Not only do you need to control scaling, but you need to deter bacterial growth as well. Scaling and corrosion shortens boiler life span because of material disintegration, while bacterial growth causes contamination and decreased heat transfer efficiency. To save time and cut costs, an all-in-one boiler chemical contains all the necessary components like phosphates, polymers, sulfites, alkalines, and amines. Phosphates and polymers are designed to remove trace elements that cannot be treated by softeners. They prevent scaling to accumulate in the system. Sulfites act as oxygen scavengers to prevent corrosion while alkalines neutralize acids contained in water. Amines, if present, are used to increase the condensate pH. 

Below are the products sold by QualiChem Technologies:

Boiler Chemical 1187

BC 1187 is a non-amine, all-in-one treatment system with a concentrated sulfite-based formulation and carboxylated organic polymer specifically designed for boiler systems like vapor modulatic boilers. It can also be applied for other systems, especially for softened water makeup and low condensate returns. Product also provides one of the most effective copolymers for higher heat transfer boilers.

Boiler Chemical 1197

BC 1197 is another all-in-one treatment product with concentrated sulfite-based formulation, carboxylated organic copolymer, and neutralizing amine for boiler systems having a softened water of sodium zeolite makeup. Product has effective copolymer as well for higher heat transfer boilers.

Alkalinity Builder Chemical

Alkalinity or AT is the ability of a base to neutralize acids to the stoichiometric point of carbonate or bicarbonate, or the measurement of the buffering capacity of water. Measuring alkalinity in water systems is imperative because it determines system’s ability to neutralize acidic contamination from rainfall or wastewater, given the increased occurrence of pollution. Alkalinity does not refer to pH level per se, but rather refers to the ability of water to resist pH change. Most common buffering compounds are bicarbonates (HCO3-) and carbonates (CO32-), but occasionally, hydroxides (OH-), borates, silicates, phosphates, ammonium, sulfides, and organic ligands are also used. In the natural environment, carbonate alkalinity makes up the majority of the total alkalinity level because of the presence of carbon dioxide in the atmosphere and the abundance of carbonate rocks. The unit mEq/L is usually given as its standard measurement, although when dealing with water systems such as steam boilers, the unit ppm or parts-per-million is usually given.

It goes to say that alkalinity for boiler waters is required to increase the pH level. In general, boiler water pH should be greater than 10.5 to ensure that the polymer chemical can work effectively to remove impurities made by scaling. In the long run, scaling impurities decrease your boiler heat
transfer efficiency which in turn will increase your energy costs. Also, if scaling is excessive, early tube replacement may be required. In high boiler pressure systems, if the total alkalinity exceeds the 3:1 ratio, silica plating may occur. Low boiler water pH may lead to excessive corrosion rates and premature boiler tube failure.

When handling alkaline products, extreme care should be exercised. Protective gear including masks, gloves, and laboratory goggles should be worn before handling the product. Alkalinity builders can cause one of the worst types of chemical burns.

Boiler Chemical 1425

BC 1425 is a concentrated alkalinity builder in liquid form for boiler treatment. Product provides maximum alkalinity adjustment per pound. It is recommended for use in any water system requiring additional alkalinity to assure proper reaction, and will not give off any residual carbon dioxide to the steam produced. All ingredients are FDA-approved for steam boilers in contact with food.

Condensate Treatment Chemical

Amines are used to increase the condensate pH for your boiler water and steam boiler.  A low condensate pH will result in excessive condensate pipe corrosion and steam leaks.  This condition may require premature condensate pipe replacement.

High make-up water and/or low feedwater temperatures will lead to lower condensate pH.  In general, the condensate pH should be maintained between 7.8 and 8.2.

The 3 most common amines for Steam Treatment are Cyclohexylamine, Morpholine, and Diethylhydroxylamine (DEAE).

    * Cyclohexylamine is used for extensive condensate pipe system and has the highest impact on pH.
 

    * Morpholine is excellent for steam short condensate pipe runs and has the lowest impact on condensate pH.

    * Diethylhydroxylamine is a general purpose amine for use in low to medium pressure boilers.

It is common in industry to order a blend of all 3 Amines, although not required.  These are referred to "Tri-Blend" Amines.

Steam Treatment 1688

ST1688 is a concentrated blend of three neutralizing amines Cyclohexylamine, Morpholine, and Diethylhydroxylamine (DEAE).

Oxygen Scavenger Chemical

Oxygen scavengers are designed to remove dissolved oxygen in boiler water and steam boiler systems.  Failure to properly remove dissolved oxygen will result in irreversible corrosion damage to the boiler tubes and may result in premature tube replacement. Proper chemical injection is in the center of the deaerator storage section or feedwater tank.

Boiler Chemical 1537

BC 1537 is a highly concentrated neutral pH sulfite solution designed to react with oxygen present in the boiler feedwater. By acting as an oxygen scavenger, the products are used to control corrosion and pitting caused by the presence of this dissolved gas. Boiler Chemical 1537-F can be used in FDA regulated facilities but is not USDA approved.

Phosphate/Polymer Scale Prevention Chemical

The most common scale prevention boiler chemicals are polymers and phosphates.  Polymers and phosphates are designed to remove trace elements that escape past the softeners in your boiler water and steam water.   

For "hard" water conditions, phosphates are preferred.  Phosphates will react to the calcium to form calcium phosphate.  The calcium phosphate sinks to the boiler bottom and is released during manual bottom blowdowns.  Also, calcium phosphate scale is light and easier to wash away during annual inspection of your steam boiler and boiler water..

For good working softeners that produce "soft" water, polymers are preferred. Polymers react with the trace calcium that leaks through the softener and is flushed away with the surface blowdown.

Failure to use a good working softener with a scale prevention chemical, may result in boiler scale. Boiler scale will decrease the boiler heat transfer efficiency.  This condition will lead to higher energy costs.  Excessive scaling may result in early tube replacement and in some cases if the scale bridges between tubes, it may result in catastrophic boiler failure, i.e. boiler explosion.

Boiler Chemical 1595

BC 1595 is a concentrated phosphate based formulations with a carboxylated organic copolymer designed for use as a boiler water treatment. The product is designed for use in boiler systems having softened makeup water and operated on the modern, low phosphate cycle. Boiler Chemical 1595 provides one of the most modern and effective copolymers for higher heat transfer boilers.