|JEFFCOOL® E100 INHIBITED GLYCOLS
DESCRIPTION JEFFCOOL® E100 Inhibited Glycol is an inhibited ethylene glycol used as an industrial coolant and heat transfer agent. The inhibitor system is designed to protect brass, copper, solder, steel, cast iron, aluminum, and other metals commonly found in industrial cooling and heating systems. A foam inhibitor is included to minimize foaming tendencies during service.
The effectiveness of JEFFCOOL® E100 Inhibited Glycol in preventing corrosion has been proven in extensive laboratory simulated service and in actual service tests. Using JEFFCOOL® E100 Inhibited Ethylene Glycol(s) for heat transfer applications in place of brine solutions or uninhibited glycol-water solutions lowers maintenance costs and improves heat transfer.
CAUTION: JEFFCOOL® E100 Inhibited Ethylene Glycol(s) must not be used where contact with food or potable water is possible. JEFFCOOL P200 Inhibited Propylene Glycol is available for applications in which contact with food or potable water is possible.
JEFFCOOL® E100 Inhibited Ethylene Glycol is recommended as a heat transfer fluid for line heaters. A line heater circulates a heated fluid around a pipe to raise the temperature of the pipe contents in order to control reactions or ease pumping operations.
Snow-Melting and Refrigeration Systems
JEFFCOOL E100 Inhibited Ethylene Glycol is recommended as a heat transfer fluid for snow-melting systems for loading ramps, walkways, highways, and airfield runways, and as a coolant in ice rinks and air conditioning systems.
Thermal Energy Storage, Heating and Cooling Systems
JEFFCOOL® E100 Inhibited Glycol is recommended as a heat transfer fluid in combination heating and cooling systems for large buildings. The excellent corrosion protection afforded by JEFFCOOL® E100 Inhibited Glycol(s) prolongs the life of the piping in these systems. JEFFCOOL® E100 Inhibited Glycol is also an excellent heat transfer medium for solar energy collection systems.
Other Industry Applications
• Automotive and aircraft manufacturers
• Chemical manufacturers
• Dye and dye intermediate producers
• Electric power companies
• Ice skating rinks
• Paint, varnish, and lacquer companies
• Paper and paper product companies
• Plastics and synthetic resin manufacturers
• Textile chemical manufacturers
• District Cooling systems
• Data centers
• Airport Jetway cooling
HANDLING AND STORAGE
JEFFCOOL® E100 Inhibited Ethylene Glycol(s) may be stored in unlined carbon steel tanks and drums. If storage of undiluted JEFFCOOL® E100 Inhibited Glycol for periods exceeding 12 months is desired, it is recommended that the storage vessels be constructed from aluminum, stainless steel, or lined carbon steel. Vinyl, epoxy, and phenolic linings are suitable. Amercoat®-23 and Amercoat®-75 linings have been found satisfactory. Stocks of JEFFCOOL® E100 Inhibited Ethylene Glycol(s) should be rotated every two to three years, if possible.
Undiluted JEFFCOOL® E100 Inhibited Glycol(s) may freeze where ambient temperatures fall below 0°F. Freezing points of various aqueous solutions of JEFFCOOL E100 Inhibited Glycol(s) are shown in Figure 1. Freezing will not harm JEFFCOOL® E100 Inhibited Glycols; however, Also,when the temperature of undiluted JEFFCOOL® E100 Inhibited Glycols is below 40°F, the viscosity will be such that pumping and transfer will be difficult. In areas where these conditions exist, it is recommended that storage vessels be equipped with stainless steel heating coils. Diluted JEFFCOOL® E100 Inhibited Glycol is easily pumped under normally encountered temperatures.
The normal precautions associated with any chemical should be observed in handling JEFFCOOL® E100 Inhibited Ethylene Glycol(s), although it is neither explosive nor flammable under normal storage conditions. The ethylene glycol in JEFFCOOL® E100 Inhibited Glycols is toxic if taken internally. Splashes onto eyes or skin must be washed away quickly and medical treatment is advised for eye exposure. Breathing of the vapors or mists should be avoided. For additional information, see the Toxicity section.
PREPARATION OF THE COOLING SYSTEM
Before JEFFCOOL® E100 Inhibited Glycol is added to a new cooling system, the system should be washed and thoroughly flushed with water. This will remove pipe scale, welding slag, dirt, and other impurities.
Existing systems that are being filled with JEFFCOOL® E100 Inhibited Ethylene Glycol(s) should be thoroughly cleaned to improve heat transfer characteristics and prevent contamination of the coolant. Regardless of the cleaning agent used, the system must be thoroughly flushed with water before the JEFFCOOL® E100 Inhibited Glycol is added. Cleaning agents used should be handled in strict accordance with instructions furnished by their suppliers.
Whenever an existing system is cleaned, a few leaks may be discovered. The presence of the proper maintenance people and equipment during cleaning will result in a much smoother operation.
INSTALLATION OF JEFFCOOL® E100 INHIBITED ETHYLENE GLYCOL(S)
Dilution of JEFFCOOL® E100 Inhibited Ethylene Glycol(s) with water is necessary to obtain proper freeze protection. This should be done prior to installation. Topping off of cooling systems should be done with a pre-diluted JEFFCOOL Inhibited Glycol solution at the required system concentration.
SYSTEM DILUTION CONCENTRATIONS
The freezing protection offered by specific concentrations of JEFFCOOL® E100 Inhibited Glycol is shown in Figure 1. It is recommended that a safety margin of at least 5°F be maintained for the lowest temperature anticipated. For example, a system with a 1,000-gallon capacity should be filled with 470 gallons of JEFFCOOL® E100 Inhibited Glycol and 530 gallons of water if a solution freezing point of -20°F is desired. To ensure adequate corrosion protection, concentration less than 25% by volume of JEFFCOOL® Inhibited Glycol should not be used.
DILUTION WATER SPECIFICATIONS
The use of hard water in JEFFCOOL® E100 Inhibited Ethylene Glycol solutions should be avoided. Hard water contains calcium and magnesium ions which deposit scale in the system and could also cause precipitation of a portion of the inhibitor system. Softened water is not recommended because the water softening process may add chlorides and sulfates which may contribute to system corrosion. Where poor water conditions exist, distilled, deionized, or boiler condensate water should be used. If a suitable water source is not available, pre-diluted JEFFCOOL® Inhibited Glycol formulas are available from a Huntsman authorized distributor.
SYSTEM MAINTENANCE PROGRAM
Huntsman Corporation, in conjunction with our authorized JEFFCOOL® Inhibited Glycol brand product distributors, provides a comprehensive system maintenance program, including a product analysis service to assure that JEFFCOOL® E100 Inhibited Ethylene Glycol(s) in customer systems maintains the proper inhibitor level and desired freeze protection. Once the system is in operation, it is recommended that samples of solution be taken at least once a year. The Inhibited Glycol solution should be circulated for 30 minutes prior to sampling to ensure a representative sample.
SAMPLE TEST KITS
Sample test kits are free of charge
to Huntsman distributors and their customers who purchase JEFFCOOL® Inhibited Glycols. Kits are available upon request. The kits include: self-addressed shipping box, pre-labeled sample bottle, weather-proof self-adhesive product installation tag and detailed sampling procedures. Analytical results from the samples will be forwarded to customers.
Occasionally, after prolonged or severe service, a solution of JEFFCOOL® E100 Inhibited Ethylene Glycol(s) may need to be reinhibited. The need for reinhibition will be detected during the periodic analysis program and a recommended procedure will be included with the analytical results.
JEFFCOOL® supplemental coolant additives (SCA) are available in five gallon and 55 gallon drum quantities from your JEFFCOOL® Inhibited Glycol representatives. The components of JEFFCOOL® SCA replenish critical inhibitors required to provide continued protection.
Additives used in inhibiting JEFFCOOL® E100 Inhibited Ethylene Glycol(s) should be handled in strict accordance with instructions furnished by their suppliers.
TOXICITY AND SAFETY
JEFFCOOL® E100 Inhibited Ethylene Glycol is not considered hazardous under ordinary conditions of handling and use. However, oral intake must be avoided, since ethylene glycol is the main component of JEFFCOOL® E100 Inhibited Coolant. Human experience indicates that serious injury or death may result from the swallowing of as little as two fluid ounces of ethylene glycol, and ingestion of excessive amounts of ethylene glycol has produced birth defects in rodents.
JEFFCOOL® E100 Inhibited Ethylene Glycol(s) is slightly irritating to skin and eyes. When contact occurs, eyes should be flushed thoroughly with water for at least 15 minutes; if irritation or discomfort develops or persists, a physician should be consulted. Splashes on the skin should be washed off promptly.
The vapor pressure of JEFFCOOL® E100 Inhibited Ethylene Glycol(s) at room temperature is quite low, so there is no appreciable inhalation hazard at ordinary temperatures. However, precautions must be observed to prevent breathing of mist, spray, or fumes generated by excessive heat, since this could lead to absorption of toxic quantities of these materials.
A Material Safety Data Sheet for JEFFCOOL® E100 Inhibited Glycol is available on request from Huntsman Corporation.
JEFFCOOL® E100 Inhibited Ethylene Glycol is available in tank wagons and nonreturnable 55-gallon, poly drums and 275-gallon totes. Bulk and packaged inventory is available at select locations throughout the U.S. Contact your local Huntsman Sales Representative for details.
We maintain a technical service staff at our laboratories in The Woodlands, TX, to assist you in the use of
JEFFCOOL® Inhibited Glycols. Additionally, several of our authorized JEFFCOOL® Inhibited Glycol Master Distributors are staffed to provide technical assistance with JEFFCOOL® Inhibited Glycols.
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