Boiler Chemicals

Carbohydrazide in both powder and liquid form finds use oxygen scavenging in boilers to prevent oxidative corrosion. Carbohydrazide is a very effective boiler oxygen scavenger in powdery form, as a formulation. It is used to scavenge even the last traces of DO (Dissolved Oxygen) from the boiler feed water. It prevents corrosion by forming a protective passive film on metal and boosting pH in condensate line. It is highly soluble in water and insoluble in organic solvents.

Carbohydrazide replaces the conventional Hydrazine by overcoming the hazardous carcinogenic effects of hydrazine. Its reducing properties for metal oxides, such as converting ferric oxide to ferrous oxide and cupric oxide to cuprous oxide, finding use in metal passivation.

Key Features and Benefits:
- Long time protection and control against corrosion
- Non carcinogenic nature
- Easy to dose
- Promotes passivation on metal surfaces
- Non residual

Chemtex is engaged in the formulation of a varied range of Boiler Chemicals which aid in the removal and prevention of mineral scale deposition and rusting of water or steam side of boiler internals. The range of products include - Boiler Feed water treatment chemicals, Boiler internal treatment chemicals, corrosion inhibitors, pH boosters, antiscalants, oxygen scavengers, descalants, etc.

These chemicals are used in water treatment plants, process boiler steam generation, water purification and food processing units to eliminate scales and corrosion inhibition.

Key features and Benefits
• Aid in oxidation corrosion elimination
• Help in instant oxygen removal
• Maintain precise pH value

Chemtex Speciality Limited formulated product Boiler Cleaners have been designed specifically for the maintenance of the boiler. Properly scheduled chemical cleaning procedures help in removing the deposits from the inside of boiler tubes which in turn reduces tube failures, improves the boiler heat rate, and improves the stability of boiler chemistry.

After a few years of operation, a boiler develops the need for chemical cleaning. If the cleaning is not initiated at the appropriate time, then built-in debris can get blown into the turbine and may cause damage to the control valves or blades. Boiler Cleaners, offered by Chemtex, incorporate a range of products which include various acids along with corrosion inhibitors that help in the removal of grease without affecting the base metals after the oxides and scales are removed.

Cyclohexylamine has been primarily used for low-pressure boilers where the condensate has a long run. The BP of 134 deg C is equivalent to a boiler pressure of 30 psi. 

Cyclohexylamine has the ability to stay with condensate steam for longer runs and at various steam pressures which is not a characteristic of other neutralizing amines available. In case the amine requirement is high then there is possibility of amine carbonate deposit formation.

In this case, it is recommended that a blend of other amines be used with Cyclohexylamine for the long run and the low pressure benefits while preventing carbonate deposition. 

Key Features and Benefits:

• Condensate line treatment
• Prevent of carbon dioxide corrosion
• Prevents formation of carbonic acid in boiler steam system
• Does not add to TDS of boiler water
• Completely volatile

Morpholine can be referred to as an organic amine used for boiler water treatment. It increases the pH of boiler water to provide protection to the boiler against corrosion. Morpholine is an amine based formulation and does not add salt to the boiler water and thereby does not add to the TDS which results in reduced blow down and fuel savings. Morpholine can be used in all type, size and pressure of boilers.)

Key Features and Benefits:

• Prevents stress cracking corrosion
• Reduces blow down requirement
• Does not add TDS
• Returns to the feed line with the condensate return so raises the feed water pH
• Saves power
• Compatible with other treatment chemicals

Chemtex offered product Sodium Sulfite finds its primary use as an oxygen scavenger for water treatment applications. It helps in treating water that enters the steam boiler for preventing problems related to corrosion.

Sodium Sulfite, having the chemical formula of Na2SO3, is a soluble sodium salt of sulfurous acid. It helps to instantly remove oxygen from the boiler feed water by converting itself to sodium sulfate. 

Key Features and Benefits:

• Catalyzed Oxygen Scavenger for instant oxygen removal
• Minimize or eliminates oxidation corrosion (corrosion due to presence of oxygen)
• Buffers pH
• Concentrated powder product
• Imparts power saving

Chemtex’s Sulfamic Descalant is a powerful concentrated acid based descaling chemical used massively for boilers. It is capable of removing lime scales in boiler tubes consequently increasing thermal efficiency leading to better energy utilization. It is an acidic corrosion inhibitor, aqueous in nature. It is an excellent solution for removing grease, oil and other thick unwanted liquids. It is an efficient descaling agent and is used for cleaning various industrial equipments and domestic appliances. It removes water and process scales from industrial equipments. Broadly these find use in the chemical and fertilizer industry, rice mills, dairy and food equipments, brewery equipment, marine equipment, sugar industry etc. Chemtex’s Sulfamic Descalant is non-inflammable and, unlike hydrochloric acid, does not give off unpleasant toxic fumes. The safety of Chemtex’s Boiler Descalant has been further increased by the addition of corrosion inhibitors and other chemicals to make it a versatile descaling agent which is safer still in terms of equipment corrosion and safety of personnel.

The field of descaling is wide and the exact application of Chemtex’s Sulfamic Descalant can only be determined after considering the nature and extent of scaling, and the type of equipment that is to be descaled.

Chemtex Speciality Limited product Boiler Antiscalant includes a range of antiscalant products such as Powder Antiscalant, Boiler Sludge Conditioner, Sludge Remover, Boiler Water Phosphate Treatment, Phosphate Polymer Treatment, Sodium Tri poly Phosphate etc. These are all online boiler internal tubes treatment compound based on polymeric dispersants for sludge conditioning, poly-phosphates and polymers for scale and corrosion inhibition. It imparts excellent online cleanliness of boiler internals by preventing scale, metal ions and metal oxide deposits formation. 

Boiler Antiscalant helps to prevent deposition of calcium, iron and iron-oxide. It also aids in the removal of existing scale from the water boiler. The optimum balances of products enable complete boiler online cleaning. Boiler Antiscalant contains corrosion inhibitor which forms a protective passive film over the boiler heat transfer surface. The inhibitor prevents fouling due to Iron Hydroxides, pitting and tube failures.