Mobiltherm 605

Mobiltherm 605 Premium Heat Transfer Oil Product Description Mobiltherm 605 heat transfer oil is a premium, high quality product intended for use in closed cl osed indirect heating installations. It is formulated from highly refined base stocks that are resistant to thermal cracking and chemical oxidation. It has good heat transfer efficiency and the oil viscosity i s such that it can be pumped readily at both start-up and operating temperatures. temperatures. The flash point of this oil will not decrease significantly in service because of its resistance to thermal cracking at the operating temperatures for which it is recommended. Mobiltherm 605 is very thermally stable and is capable of an extremely long service life without deposit formation or viscosity increase. It demonstrates high specific heat and thermal conductivity which provide more rapid heating and greater flexibility in a system.

Features and Benefits Mobiltherm 605 offers the following benefits: •

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High High resist resistanc ance e to the therma rmall crac crackin king g and decomp decomposi ositio tion n result resulting ing in freedo freedom m from from sludge sludge and coke coke dep deposi osits ts and minimum interference with heat transfer capability Excellent thermal properties giving high heat transfer rates and improved improved operating operating efficiency Long trouble free service life life Easy starting of cold systems

Applications Mobiltherm 605 heat transfer oil is recommended for use in closed, cold-oil sealed, indirect heating and cooli ng systems in all kinds of industrial processes operating at bulk oil temperatures up to a maximum of 320ºC and at atmospheric pressure. Mobiltherm 605 can be used in installations where the bulk oil temperature is as high as 320ºC and where minimum mini mum shutdown temperatures are not below about -12ºC. If the oil is used above its recommended maximum temperatures, temperatures, vapour lock may result unless the system is designed to operate at the higher temperature by pressurizing with an iner t gas such as nitrogen. However, at higher temperatures, temperatures, fluid life will be shortened shor tened because the rate of thermal degradation increases markedly as temperatures rise above the recomm recommend ended ed limit. limit. In well-d well-desi esigne gned d system systems s the tem temper peratu ature re of the oil film film surrou surroundin nding g the hea heatin ting g element element should be about 15ºC to 30ºC above the bulk oil temperature. If higher than this, the service life of the oil may be short shorten ened ed and sludg sludge e and and coke coke ma may y be dep depos osit ited ed which which would would inter interfe fere re with with the the heat heat tran transf sfer er rate rates. s. Mo Mobi bilth ltherm erm 605 should not be mixed with conventional oils since this may impair the excellent thermal and oxidation stability of the Mobiltherm 605 oil which may cause a change in other properties and complicate the interpretation of analyses made to determine the oil's useful life. As with other mineral oils, Mobiltherm Mobilther m 605 heat transfer oil should be used only in systems with forced circulation. Systems that depend on convection for for circulation of the heat transfer medium do not provide a rapid enough flow to prevent local overheating and rapid deterioration of the oil. Further, Fur ther, the oil is not recommended for use in open systems where hot oil is exposed directly to the air. If it sprays or escapes from leakage points, hot Mobiltherm 605 may spontaneously ignite.

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Typical Properties Mobiltherm 605 CMCS Code Appearance KV @ 40ºC KV @ 100ºC Viscosity Index Flash Point COC Flash Point PMCC Fire Point Pour Point Neutralization Number GC SimDis Carbon Residue Conradson Carbon Residue Saturates Aniline Point Noak Volatility RBOT Vapor Pressure @ 204.5ºC Vapor Pressure @ 260ºC Vapor Pressure @ 315.5ºC Thermal Conductivity @ 37.8ºC Thermal Conductivity @ 148.9ºC Thermal Conductivity @ 260ºC Specific Heat @ 204.4ºC Specific Heat @ 260ºC Specific Heat @ 315.5ºC Distillation GC, IBP GC SimDis 10% Recovered GC SimDis 30% Recovered GC SimDis 50% Recovered Sulfur

Test Method Visual ASTM D 445 ASTM D 445 ASTM D 2270 ASTM D 92 ASTM D 92 ASTM D 92 ASTM D 97 ASTM D 974 ASTM D 2887 ASTM D 189 ASTM D 2007 ASTM D 611 ASTM D 5800 ASTM D 2272 ASTM D 2879 ASTM D 2879 ASTM D 2879 ASTM D 2717 ASTM D 2717 ASTM D 2717 ASTM D 2766 ASTM D 2766 ASTM D 2766 ASTM D 2887 ASTM D 2887 ASTM D 2887 ASTM D 2887 ASTM D 2622

Unit

mm2/s mm2/s none ºC ºC ºC ºC mg KOH/g % wt% wt% ºC wt% min torr torr torr cal/scmC cal/scmC cal/scmC kJ/KgK kJ/KgK kJ/KgK ºC ºC ºC ºC wt%

970767 Bright and Clear 32 5.2 95 200 180 220 -6 0.05 15 0.05 68 120 20 30 1.7(max) 14(max) 70(max) 3.1 E-04 2.9 E-04 2.7E-04 2.7 2.9 3.1 315 385 415 430 0.75(max)

Health and Safety Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment. The Mobil logotype, the Pegasus design and Mobiltherm are trademarks of ExxonMobil Corporation, or one of  its subsidiaries.