Monday 16 April 2012

Cooling Tower Water Biocide


We produce and supply a wide range of Cooling tower biocide or open recirculating water biocides which are widely used for cleaning the closed loop systems to remove the microbial present in the water. The fouling present in the water obstruct the systems from proper functioning and working which can be removed by using these cleaners. Biological growth of algae, slimes and bacterial deposits prevent the normal functioning of the systems.


Biocides function in the removal and prevention of spores, fungi, legionella pneumophila bacteria, and many other bacteria etc in cooling tower water.


Cooling water biocide is very vital for healthy cooling water treatment for their following benefits:-

  • They avoid plugging of the nozzles with algae and biological foulants.
  • They prevent water borne life taking disease - legionella disease.
  • They improve heat loss because living organisms cause rise in water temperature.
  • Application: Cooling Towers , evaporative condensers, cooling water heat exchangers, adiators, air washers, gear boxes, blow mouling machines, injection mouling machines, housings, d. G. Sets etc. Specification:


    Chemical Type
    Variable
    Form Liquid / Solid
    Specific Gravity Variable
    PH Variable
    Solubility Completely/sparingly soluble in water
    Dosage: Cooling water biocides are normally fed to the re-circulating water by slug dosage directly to the ct sump (basin). The amount of to prevent or remove biofouling depends on the quality of feed water and plant operating conditions. The specific dosage rates will be specified by the csl technical representative. Major Benefits: Prevention of bio-fouling in system avoid plugging of nozzles avoids mic (microbiologically induced corrosion) prevent water borne disease improve the heat loss because living organisms cause rise in temperature of water.

Thursday 12 April 2012

Cooling Tower Fill Liquid Cleaning Chemical

Cleaning Chemicals play a vital role in making the machines and equipments to operate & function properly. Some major industrial coolant & heating machines & equipments go out of work due to the problems like dirt, dust, grease, oil and presence of inorganic and inorganic foulants. These problems are removed by using Chemtex’s offered range of cleaning chemicals while improving the efficiency and functionality of the machines. Due to small negligence and mistake cooling & heating equipments can get crash and be insensitive to work. We implement closed loop system maintenance which is a vital part of HVAC and ACnR maintenance program. this maintenance program can overcome the bigger loses like power loss, system efficiency loss, HTF (Heat Transfer Fluid) and Refrigerant fouling and degradation, loss of system life, un-scheduled maintenance jobs for de scaling and fixing leaks and bursts due to corrosion. The major area of Closed loop maintenance are being employed in Chemtex Speciality Limited which include Proper system cleaning & passivation after commissioning and corrosion Control. More detail information about above matter is available at www.chiller-chemicals.com.

Monday 2 April 2012

Industrial Coolant Antifreeze Chemical

Propylene glycol is used as antifreeze agent and industrial coolant in different industries where contamination with food is possible, de-icing solutions etc. Propylene glycol is generally regarded as safe for use in food. It is used in the industries like food, beverage etc for heat transfer, also used in vehicles. Antifreeze Coolant should be efficient in transferring the heat as well as preventing scale and corrosion.


Propylene glycol [HO-CH2-CH(OH)-CH3] is pronounced as pro'puh-leen-gly'col. It is a clear, colorless, slightly syrupy liquid at room temperature. The compound may exist in air in the vapor form though it must be heated or briskly shaken to produce a vapor. It is actually a multi-variant chemical compound. Propylene glycol - in an industrial cooling and heating process terminology is referred as industrial coolant or heat transfer fluid (HTF) or the common fluid that is used in large installations for transporting heat from one place to another.



Features:
  • serves as a solvent
  • offers outstanding stability with high flash and boiling points
  • reduces the freezing point
  • increases the boiling point
  • helps to bind and transport other substances (excipient)
  • holds and dissolves active ingredients equally in a medium
  • connects and stabilizes insoluble fluids (emulsifier)
  • attracts/holds water/moisture (hygroscopic)


Usage:
  • As an emulsification agent in Angostura and orange bitters
  • As a moisturizer in medicines, cosmetics, food, toothpaste, shampoo, mouth wash, hair care and tobacco products
  • As a carrier in fragrance oil
  • To produce polyester compounds
  • As a base in deicing solution
  • In smoke machines to make artificial smoke for use in firefighters' training and theatrical productions
  • As a solvent for food colors and flavorings
  • As an ingredient, along with wax and gelatin, in the production of paintballs
  • As a wetting agent, used to determine drying time in paints and coatings


A non-toxic substitute of Ethylene Glycol:


Propylene Glycol is the replacement of Ethylene Glycol in newer automotive antifreezes and de-icers in aircrafts. Like Ethylene Glycol, Propylene Glycol also has the special physical characteristics of depression of freezing point when mixed with water. It happens due to disruption of hydrogen bonding. Pure water freezes at 0OC. But aqueous solution of Propylene Glycol (10% by weight) has a freezing point of -3OC. 30% by weight aqueous solution of Propylene Glycol freezes at -12OC and a 60% by weight Propylene Glycol and water mixture can further lower down this freezing point to -51OC.


Why Glycol turned into red color?


Because of the extensive corrosion & rust in the system metal makes the glycol turn reddish in color. At this point the glycol is fouled with iron contaminants that increase the glycol degradation rate. It is important to add corrosion inhibitor to the glycol system to avoid such degradation of glycol.


Application Areas:


Beverages & Juices, Breweries & Distilleries, Packaged Food Freezing, Canneries & Preservers, Fish Processing Units, Pharmaceutical & Bulk Drugs, Poultry Processing Industry, Thermal Storage System, Heating and Cooling Systems, Snow Melting and Refrigeration, Ice Skating Rinks, Vegetable Oil Industry, Ice Manufacturer, Cold Storage Systems etc.



Product Physio-Chemical Data :


  • Form and Appearance - Clear, colorless liquid
  • Assay as Propylene Glycol - 99.8%
  • Specific Gravity - 1.04 (approx.)
  • Molecular Wt. -  76.0548 gm/mol
  • Solubility in Water - 100%


Handling Measures, Precaution & Storage:


Propylene Glycol is slightly hygroscopic & the storage temperature is not critical, it must be stored under conditions so that contamination with water and adsorption of moisture are prevented. It should be noted however for product quality reasons the storage temperature should not go above 40°C. At below freezing temperatures the product viscosity might become too high for transfer from the storage containers with the pumps available. PG is a stable chemical and is not expected to deteriorate significantly with time provided if it is stored as indicated. The drums should be stored in dry condition, better to use the original drums rather than the other drums and if the drums are opened then it must be closed tightly at unused situation. The chemical can be stored up to 6 months.

Tuesday 21 February 2012

Orange Colored Inhibited Mono Ethylene Glycol

General Name: Pre-Inhibited Ethylene Glycol based Heat Transfer Fluid - Orange Color


Product Description:
Orange colored Inhibited Ethylene Glycol is used as an industrial coolant, antifreeze heat transfer agent. The inhibitor package is designed to protect brass, copper, solder, steel, cast iron, aluminum and other metals commonly found in the industrial cooling and heating systems.


The effectiveness of Inhibited Ethylene Glycol in preventing corrosion has been proven in extensive laboratory and in actual service tests. Using Inhibited Ethylene Glycol for heat transfer applications instead of brine solutions or uninhibited ethylene glycol reduces maintenance costs and improves heat transfer efficiency.


Application Areas:

  • Beverages & Juices
  • Breweries & Distilleries
  • Thermal Storage System
  • Pharmaceutical & Bulk Drugs
  • Snow Melting & Refrigeration
  • Oil Refineries
  • Automobile Coolant Manufacturers
  • Ice Skating Rinks
  • Rubber Industry
  • Cold Storage Systems
  • Cold Rolling Mills
  • Milk and Dairy Industry
  • Meat Processing Industry
  • Solvent Extraction Units
  • Vanaspati & Vegitable Oils
  • Industrial Coolants


Product Physio-Chemical Data:
  • Form and Appearance :  Orange colored liquid
  • Mono Ethylene Glycol :  97% ± 0.5%
  • Inhibitor package and water :  3.5% ± 0.5%
  • pH of solution :  10.0 ± 1.0
  • Solubility in Water and Glycol : 100%


Orange Colored Inhibited Ethylene Glycol is used as heat transfer agent in food, beverage or brewery industries, there lays a possibility of contamination even though Ethylene Glycol is harmless to our health up to a
certain level. But to keep ourselves on the safer side of the problem, something has to be done to detect the leakage of Glycol from the system. But we are fortunate enough that it had already done. Chemtex’s offered a perfect blend of Inhibited Ethylene Glycol and a colored leak detecting media. This media turns the Glycol solution to blue or orange or red colored solution. So, whenever there is any leakage from Glycol systems, it will be visible during the daylight and even in the night time due to its color.


Handling Measures, Precaution & Storage:


Orange colored Inhibited Ethylene Glycol is toxic and must be handled with all necessary precautions. Proper human safety products such as Splash goggles, lab coat, vapor respirator, gloves and boots should be worn while handling and applying chemicals.


Splashes on skin should be washed off with water immediately. In case of splashing into the eyes, flush it with fresh water and obtain medical attention. It should not be injected.


Chemtex has the full range of Inhibited Glycol either it is Inhibited Ethylene Glycol or Inhibited Propylene Glycol. We are offering both types of Inhibited Glycol. Inhibited Ethylene Glycol is mainly for industrial use except any types of food or beverage or dairy etc. related industries where contaminations of Inhibited Glycol with food or drinks products are possible. In those special cases we have Inhibited Propylene Glycol which especially designed for food grade to use in food products related or manufacturing industries. For Orange Colored Inhibited Propylene Glycol contact us at +91-33-7111-1111 or info@chemtexlimited.com.

Tuesday 24 January 2012

Nitrite based Corrosion Inhibitor for Chilled Water

Nitrite based Corrosion Inhibitors for chilled water systems is a multi-metal corrosion inhibitor based on nitrite and other organic compounds with special yellow metal corrosion inhibitor and anti-scaling agent that helps to prevent scale deposition or also removes adhering loose scale deposits from the heat transfer fluid system.


                There are several disadvantages for not treating the closed circuit water and in long run it can create troubles for the system operator. The corrosions caused by chiller water, Mono Ethylene Glycol or Brine can cause system leakage in PHE (Plate Heat Exchanger) and AHU (Air Handling Unit). Corrosion can also cause plugging and clogging of tubes and thus reduce flow rate. This will affect the heat transfer rate and will force the system to reduce heat transfer efficiency. This way the system needs regular descaling that incurs shutdowns, leads to additional costing for labor and wastage of time.
                “Scale” is a hard deposit of inorganic material on heat transfer surfaces. This is caused by gradual precipitation of mineral particles in water on the surface. During the evaporation of water in a evaporative condenser, pure water vaporizes out and the dissolved solid materials concentrate in the remaining water on the surface. The solids will then settle in pipelines or on heat exchange surfaces, where it frequently solidifies into a relatively soft, amorphous scale.


                Next to scale, the next most important concern is the prevention of “corrosion”.


                Corrosion is defined as the destruction or loss of metal through chemical or electrochemical reaction with its surrounding environment or material. Mild steel is a most commonly used metal in the cooling water system. But this metal is most susceptible to corrosion. However in some waters and in presence of dissolved gases, such as H2S or NH3, the corrosion to these metals is more severe.


                Common problems arising from corrosion are reduction in heat transfer and water flow resulting from a partial or complete blockage of pipes, valves, strainers, etc. Also, excessive wear of moving parts, such as pump, shaft, impeller and mechanical seal, etc. may resist the movement of the equipment. Hence, thermal and energy performance of heat exchange may degrade.


                The water treatment in closed system is thus not very critical. Once the initial volume is chemically treated, the quality of the circulating fluid needs to be monitored on a regular basis and additional chemicals added as required to maintain recommended residual concentrations of treatment chemicals.


                Most closed-loop water systems use a sodium nitrite based inhibitor for corrosion control and a biocide to prevent biological contamination. These inhibitors will protect both the ferrous and non-ferrous materials in your piping system.


The major advantages of using nitrite based corrosion inhibitor are as follows:-
  1. Removes dissolved oxygen by converting the nitrite to nitrate.
  2. Negligible loss of metal or corrosion.
  3. Excellent heat transferability and flow rate.
  4. No need of descaling closed circuit equipments.
  5. Long and extended life of Water without fouling.
Application: Engine Jacket Cooling or heating system, Chiller Water Circuit, Glycol Brine System, Hot Water or steam Circuit, Engine Coolant, Process chilling and heating system etc.


Dosage: Nitrite based Corrosion Inhibitor for Water and Glycol Brine is normally fed continuously to the re-circulating closed system by injection dosing pump or dosed to the expansion tank. The amount of Nitrite based Corrosion Inhibitor for Water and Glycol Brine to inhibit corrosion depends on the type of system and plant operating conditions. The specific dosage rates will be specified by the Chemtex's technical representative.

Wednesday 18 January 2012

Mono Ethylene Glycol Brine (MEG Brine) Corrosion Inhibitor

Chemtex’s MEG Corrosion Inhibitor is a specially formulated chemical additive designed to prevent corrosion in multi-ways. It treats the surfaces of the metal making them less susceptible to corrosion. It buffers the organic acids formed as a result of glycol oxidation. Inhibited glycol based heat transfer fluids provides corrosion protection without reducing system’s heat transfer efficiency.

It is very important to use inhibitor in glycol system to prevent degradation of glycol. Glycol in presence to heat and air degrades into five organic acids namely: Glycolic Acid, Glyoxalic Acid, Formic Acid, Carbonic Acid & Oxalic Acid. Metal acts as catalyst in un-inhibited glycol solution for the formation of these acids, which then chemically attacks and corrodes system.

Also available Pre Inhibited Mono Ethylene Glycol and normal Mono Ethylene Glycol.

Chemtex’s MEG (Ethylene Glycol) Brine Corrosion Inhibitor is a specially formulated chemical compound designed to prevent corrosion in multi-ways. MEG (Ethylene Glycol) Brine Corrosion Inhibitor treats the surfaces of the metal making them less susceptible to corrosion. MEG (Ethylene Glycol) Brine Corrosion Inhibitor buffers the organic acids formed as a result of glycol oxidation.

Inhibited (MEG) glycol based heat transfer fluids provides corrosion protection without reducing system’s heat transfer efficiency.
It is very important to use corrosion inhibitor in glycol system to prevent degradation of glycol. MEG in presence to heat and air degrades into five organic acids viz., Glycolic Acid, Glyoxalic Acid, Formic Acid, Carbonic Acid & Oxalic Acid. Metal acts as catalyst in un-inhibited glycol solution for the formation of these acids, which then chemically attacks and corrodes system.
Glycol turns Red. What does this indicate?

Due to the high corrosion in the HTF system, the rust in the system metal makes the glycol turn reddish in colour. At this point the glycol is fouled with iron contaminants which increase the glycol degradation rate. It is very important to add corrosion inhibitor to the glycol system to avoid such degradation of glycol.

Application: Mono Ethylene Glycol System (MEG)

Specification:
  1. Chemical Type:  Organic Chemical Additive
  2. Form:  Liquid
  3. Freezing Point:  Very low (Supercools)
  4. VOC:  Nil
  5. Solubility:  Completely Soluble in Glycol & Water
Dosage:

The amount of MEG (Ethylene Glycol) Brine Corrosion Inhibitor required to inhibit corrosion depends on the type of system, application, brine concentration and plant operating conditions. The specific dosage rates and method will be specified by the Chemtex's technical representative.

Major Benefits:
  1. Negligible loss of metal or corrosion.
  2. Excellent heat exchange and flow rate.
  3. Long and extended life of glycol without fouling.
  4. Avoids heat exchangers from leaking such as PHEs.
  5. Maintains the anti-freezing properties of MEG.
  6. Does not form sludge as in case of other mere pH buffers used in MEG.
Team Chemtex is proud to be a trusted business partner of its valued customers, offering excellent technical support and best supply chain management solutions for both domestic & overseas trade.Today, the organizations choose Chemtex for our integrity, transparency, our observance for high quality standards and our commitment to customer value.

In this site we have focused on our prime business area - Heat Transfer Fluids, PCMs and Eutectic Solutions. The industry is ever growing at an unmatched pace of about 20% - 30% every year.Apart from this, Chemtex offer wide range of speciality chemicals, including Water Treatment Chemicals, Chiller Chemicals, Corrosion Inhibitors, disinfectants for food and beverage industry, cleaners, degreasers, plant maintenance chemicals etc. Chemtex has mastered the ways and means of doing business better with a farsighted combination of vision, creative thinking, technology, logistics & management. In all that we do at Chemtex, we are guided by our sole mission statement - 'The Chemtex Way'. Doing business this way has paid us very rich dividends.

Chemtex has the full range of Inhibited Glycol either it is Inhibited Ethylene Glycol, Inhibited Propylene Glycol. We are offering all types of corrosion inhibitors, mainly for industrial use. For mono ethylene glycol brine corrosion inhibitor, contact to info@chemtexlimited.com or +91-33-71111111


Thursday 12 January 2012

Inhibited Propylene Glycol 60% Premix


Inhibited Propylene Glycol 60% Premix is a 60% propylene glycol mixed with balanced water and inhibitor packages ready to use industrial coolant. It is available in various color options and pack sizes. This product is used as an industrial  antifreeze heat transfer fluid.

Product Description:

60% Premix Inhibited Propylene Glycol is used as an industrial coolant, antifreeze heat transfer agent. The inhibitor package is designed to protect brass, copper, solder, steel, cast iron, aluminum and other metals commonly found in the industrial cooling and heating systems. 60% pre-inhibited propylene glycol mixture industrial coolant outperforms dowtherm, dowcal, norkool range of pre-inhibited industrial coolants.
Both inhibited propylene glycol and inhibited ethylene glycol have similar biodegradability and will eventually break down into nontoxic byproducts. Antifreeze picks up heavy metals such as lead during use in the engine. Therefore, both ethylene glycol and propylene glycol antifreezes should be returned to a recycling center to minimize harmful effects on our environment after use. Spills should be cleaned up immediately.
Inhibited Ethylene glycol is more toxic than Inhibited propylene glycol. Ingesting a small amount of ethylene glycol is far more dangerous for small children or animals, for example, than ingesting a small amount of propylene glycol. Take appropriate steps to prevent the ingestion of either ethylene or propylene glycol, as well as new or used engine coolants containing these glycols.

Application Areas:
•             Beverages & Juices

•             Breweries & Distilleries

•             Diesel Engine Coolant

•             Radiator Coolant

•             Automobile Coolant Manufacturers

•             Oil Refineries

•             Thermal Storage System

•             Heating and Cooling Systems

•             Snow Melting and Refrigeration

•             Rubber Industry

•             Ice Manufacturer

•             Cold Rolling Mills


Product Physio-Chemical Data:

Form and Appearance                           :              Clear, colorless liquid

Asay as Propylene Glycol                      :              60.0% ± 0.5%

Inhibitor package and water                               Balance

pH of solution                                       :              9.5 ± 1.0

Solubility in Water and Glycol                             100%

Maximum Operating Temperature         :               107°C (225°F)

Freezing Point                                       :                -51°C (-60°F)

Handling Measures, Precaution & Storage:

60% Premix Inhibited Propylene Glycol is non-toxic and can be handled easily. However, proper human safety products such as Splash goggles, lab coat, vapor respirator, gloves and boots should be worn while handling and applying chemicals.
Splashes on skin should be washed off with water immediately. In case of splashing into the eyes, flush it with fresh water and obtain medical attention. It should not be injected.

Chemtex has the full range of Inhibited Glycol either it is Inhibited Ethylene Glycol, Inhibited PG or 60% Premix Inhibited Propylene Glycol. We are offering all mentioned types of Inhibited Glycol. Inhibited EG is mainly for industrial use except any types of food or beverage or dairy etc. related industries where contaminations of Inhibited Glycol with food or drinks products are possible. For Blue Colored Inhibited Propylene Glycol contact us at +91-33-7111-1111 or info@chemtexlimited.com .