THERMINOL 55 heat transfer fluidEfficient, reliable mediumtemperature-range fluid- 28 to 290 C (--18 to 550 F)

THERMINOL 55 heat transfer fluidM.ineusteTherminol 55 fluid is designed for use in nonpressurized/lowpressure, indirect heating systems. It delivers efficient, dependable,uniform process heat with no need for high pressures. The high01825boiling point of Therminol 55 helps reduce the volatility and fluid80,–p.m–2060p,m 50te ., 5eus pd emde e ten usxt k. e ulax . bM axMPhysical and chemicalcharacteristicsleakage problems associated with other fluids. FThe recommended maximum bulk and film temperatures for CTherminol 55 are based on industry-standard thermal studies.Operation at or below these temperature maximums can7425310298–245–1provide long service life under most operating conditions.Actual fluid life is dependent on the total system design andoperation and can vary by heat transfer fluid chemistry. AsEastman Therminol 55 heat transfer fluid isa unique, synthetic fluid designed to providereliable, consistent heat transfer performanceover a long life at maximum bulk temperaturesup to 290 C (550 F).fluid ages, the formation of low- and high-boiling compoundsmay result. Low-boiling compounds should be vented from thesystem as necessary to a safe location away from personnel andsources of ignition and in compliance with applicable regulationsand laws. The high-boiling compounds can be very soluble inthe fluid. Significant overheating or fluid contamination willaccelerate decomposition and may result in increased high- Delivers excellent cost performance over the fluid life whencompared to common mineral oil-based heat transfer fluids,boiler and solids concentrations. Excess solids can typically befiltered for removal.even when operating temperatures reach a maximumextended use temperature of 315 C (600 F).Therminol 55 has been shown to be significantly less sensitivethan mineral oils to the negative consequences (sludging, More readily pumpable at low temperatures than the majorityof other mineral oil-based heat transfer fluids. Savings in capital, operations, and maintenance costs areoften achieved when used in applications that traditionallyuse steam as a heating medium.fouling) of thermal oxidation. Eastman recommends thatsystems utilizing Therminol 55 fluid should be blanketed with anatmosphere of inert gas to protect against the effects of fluidoxidation on its performance and life expectancy. Pressure reliefdevice(s) should be installed where required.Therminol 55 is noncorrosive to metals commonly used in theTherminol 55 is available in the Americas and Asia-construction of heat transfer systems.Pacific. Contact your local Eastman Therminol salesWhile Therminol 55 has a relatively high flash point, it is notrepresentative for more information.classified as a fire-resistant heat transfer fluid. Consequently,the use of protective devices may be required to minimize firerisk and users of Therminol 55 should check with their safetyand risk management experts for specific instructions.

Typical propertiesaAppearanceClear, yellow liquidCompositionSynthetic hydrocarbon mixtureMaximum bulk temperature290 C (550 F)Maximum extended use temperature315 C (600 F)Maximum film temperature335 C (635 F)Normal boiling point351 C (664 F)Pumpability, at 300 mm²/s (cSt)–8 C (17 F)Pumpability, at 2000 mm²/s (cSt)–28 C (–18 F)Flash point, COC (ASTM D-92)177 C (350 F)Autoignition temperature (ASTM E-659)366 C (691 F)Autoignition temperature (DIN 51794)382 C (719 F)Pour point (ISO 3016)–54 C (–65 F)Minimum liquid temperatures for fully developed turbulent flow (NRe 10000)10 ft/s, 1-in. tube (3.048 m/s, 2.54-cm tube)67 C (152 F)20 ft/s, 1-in. tube (6.096 m/s, 2.54-cm tube)45 C (114 F)Minimum liquid temperatures for transitional region flow (NRe 2000)a10 ft/s, 1-in. tube (3.048 m/s, 2.54-cm tube)24 C (75 F)20 ft/s, 1-in. tube (6.096 m/s, 2.54-cm tube)11 C (52 F)Coefficient of thermal expansion @ 200 C0.000961/ C (0.000534/ F)Heat of vaporization at maximum use temperature228 kJ/kg (98.1 Btu/lb)Average molecular weight320Pseudocritical temperature512 C (953 F)Pseudocritical pressure13.2 bar (191 psia)Pseudocritical density258 kg/m3 (16.1 lb/ft3)Moisture content, maximum (ASTM E-203)150 ppmDielectric constant @ 23 C (ASTM D-924)2.23T hese data are based on samples tested in the laboratory and are not guaranteed for all samples. Contact us for complete sales specifications for Therminol 55 fluid. Does not constitute an express warranty. See disclaimer on the back page of this bulletin.To create your own customized tablewith preferred properties, units of measure,and temperature intervals, download the Therminol heat transfer fluid calculator.For the technical service contact in your region,visit the CONTACT US page on our website,

Liquid properties of Therminol 55 heat transfer fluid by temperaturea(SI at vityLiquid viscositycVaporpressured C Fkg/m3kJ/(kg·K)kJ/kgkJ/kgW/(m·K)cP (mPa·s)cSt imum recommended bulk temperature 290 C (550 F). These data are based on samples tested in the laboratory and are not guaranteed for all samples. Contact us for complete sales specifications for Therminol 55 fluid. bLiquid enthalpy basis is –17.8ºC (0ºF). c1 cSt 1 mm2/s and 1 mPa s 1 cP. d100 kPa 1 bar. eMaximum extended use temperature is 315ºC (600ºF).a

Liquid properties of Therminol 55 heat transfer fluid by temperaturea(English units)TemperatureLiquid densityLiquidheat capacityHeat vityLiquid viscositycVaporpressured F Clb/gallb/ft3Btu/(lb· F)Btu/lbBtu/lbBtu/(ft·h· F)lb/(ft·h)cSt 7.07e600

TLC Total Lifecycle Care In-service heat transfer fluidsample analysisOperational trainingWhen Therminol heat transfer fluids are used within suggestedwe can help improve system design, promote safety, and reducetemperature limits, they may provide years of trouble-free service.overall cost. Customers can take advantage of Eastman’s heatTo help users get maximum life, Eastman offers testing oftransfer system operation and product training programs. Thesein-service heat transfer fluids to detect contamination, moisture,programs are customized to suit the varied needs of frontlinethermal degradation, and other conditions that may impacttechnicians, operations supervisors, and maintenance technicianssystem performance. This comprehensive analysis includesto design engineers. Customers can also receive training assistanceacid number, kinematic viscosity, insoluble solids, low boilers,for dealing with important topics like fluid safety and handling.Eastman believes that by sharing our experience with customers,high boilers, and moisture content. Additional special analysesare available on request. Sample analysis includes samplecollection kits that are easy to use. Most systems should beSafety awareness trainingsampled annually. Users should also sample anytime a fluid-At Eastman, we’re “All in for Safety.” We provide our customersrelated problem is awareness training that focuses on the design, start-up,operation, and maintenance of heat transfer fluid systems.Results of the test are presented in a detailed report that providesStart-up assistancesuggestions for corrective action. Test results are stored in aEastman provides start-up assistance by reviewing proceduresdatabase for future reference. Customers can access their specificand offering suggestions to reduce typical problems. Customerstest information via also receive help by calling their local Eastman technicalspecialist or through on-site assistance.Technical service hotlineExperienced technical service specialists can help answer yourFlush fluid and fluid refillquestions regarding heat transfer fluid selection, system start-ups,Liquid phase heat transfer systems can be cleaned with Therminol system design, and operational issues.FF flushing fluid. After the system is flushed, the appropriate liquidphase Therminol heat transfer fluid can be added.System design supportEastman regularly assists some of the world’s largest engineering,Fluid trade-in program*chemical, and equipment manufacturing companies on the designAs part of our commitment to sustainabilityand operation of heat transfer systems. Our liquid phase andand the environment, Eastman offers a trade-invapor phase design guide information and system design dataprogram for used Therminol and competitive heathave been field tested in numerous installations. Eastman alsotransfer fluids. Depending on the fluid and itsconducts engineering seminars for customers, engineering firms,condition, it may be turned in for potential creditand equipment manufacturers to cover a wide range of heattowards the purchase of new Therminol heattransfer fluid system design and operation issues. Customers cantransfer fluid.request a technical service visit to audit heat transfer systems forfluid loss and leak prevention opportunities.*Available in North America. Contact your local sales representative for more information.

Eastman’s TLC Total Lifecycle Care program isdesigned to support Therminol customers throughouttheir systems’ life cycle. This comprehensive programincludes system design support, start-up assistance,training, sample analysis, flush and refill fluids, and ourfluid trade-in program. In North America, call ourhotline at 1-800-433-6997 or contact your local salesor technical representative.

For more information or to find the sales or technical contact nearest you, visit the “Contact us” page on our AmericaSolutia Inc.A subsidiary of Eastman Chemical Company575 Maryville Centre DriveSt. Louis, MO 63141 U.S.A.Telephone:Customer Service, 800-426-2463Technical Service, 800-433-6997Fax: Customer Service, (1) 314-674-7433Latin AmericaSolutia Brasil Ltda.A subsidiary of Eastman Chemical CompanyRua Alexandre Dumas, 1711—Birmann 12—7º Andar 04717-004São Paulo, SP, BrazilEurope/Middle East/AfricaSolutia Europe SPRL/BVBAA subsidiary of Eastman Chemical CompanyCorporate Village—Aramis BuildingLeonardo Da Vincilaan 11935 Zaventem, BelgiumTelephone:Brazil, 0800 55 9989Other Locations, 55 11 3579 1800Fax: 55 11 3579 1833Telephone: 32 2 746 5000Fax: 32 2 746 5700Eastman Chemical CompanyCorporate HeadquartersP.O. Box 431Kingsport, TN 37662-5280 U.S.A.U.S.A. and Canada, 800-EASTMAN (800-327-8626)Other Locations, (1) PacificEastman (Shanghai) ChemicalCommercial Company Ltd.Building 3, Yaxin Science & Technology ParkLane 399 Shengxia RoadPudong New District201210, Shanghai, P.R. ChinaTelephone: 86 21 6120 8700Fax: 86 21 5027 9229Although the information and recommendations set forth herein are presented in good faith, Eastman ChemicalCompany and its subsidiaries make no representations or warranties as to the completeness or accuracy thereof.You must make your own determination of its suitability and completeness for your own use, for the protectionof the environment, and for the health and safety of your employees and purchasers of your products. Nothingcontained herein is to be construed as a recommendation to use any product, process, equipment, or formulationin conflict with any patent, and we make no representations or warranties, express or implied, that the use thereofwill not infringe any patent. NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED, OFMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR OF ANY OTHER NATURE ARE MADE HEREUNDERWITH RESPECT TO INFORMATION OR THE PRODUCT TO WHICH INFORMATION REFERS AND NOTHING HEREINWAIVES ANY OF THE SELLER’S CONDITIONS OF SALE.Safety Data Sheets providing safety precautions that should be observed when handling and storing our productsare available online or by request. You should obtain and review available material safety information beforehandling our products. If any materials mentioned are not our products, appropriate industrial hygiene and othersafety precautions recommended by their manufacturers should be observed. 2015 Eastman Chemical Company. Eastman brands referenced herein are trademarks of Eastman ChemicalCompany or one of its subsidiaries. The used on Eastman brands denotes registered trademark status in the U.S.;marks may also be registered internationally. Non-Eastman brands referenced herein are trademarks of theirrespective owners.TF-2512/15

Temperature Liquid density Liquid heat capacity Heat of vaporization Liquid enthalpyb Liquid thermal conductivity Liquid viscosityc Vapor pressured C 3 F kg/m kJ/(kg·K) kJ/kg kJ/kg W/(m·K) cP (mPa·s) cSt (mm2/s) kPa –28 –18 904 1.73 418.0 –18.8 0.1340 1820 2010 — –20 –4 899 1.76 412.0 –3.9 0.1