FK-649

High-tech fluid as replacements for Novec™ 649

This product is a clear, colorless fluid designed for heat transfer. It is non-flammable, thermally stable, non-ozone-depleting, and has a very low global warming potential. This product's low boiling point, wide fluid range, and low viscosity make it ideal for single- or dual-phase electronics cooling. It effectively mitigates the aggressiveness of solvents and is useful for reducing the flammability of mixtures. 

Drop-in replacement - Chemical identical 

FK-649 ist ein chemisch identischer, exakter Molekülersatz für das abgekündigte Novec™ 649 (CAS 756-13-8). 
FK-649 ist eine hochreine fluorierte Ketonflüssigkeit (mindestens 99,9%), die sich hervorragend als Flüssigkeit zur Elektronik-Immersionskühlung und Wärmeübertragung eignet. 

Alternative substance names: 
Dodecafluor-2-methylpentan-3-on
1,1,1,2,2,4,5,5,5-NONAFLUOR-4-(TRIFLUORMETHYL)-3-PENTANON, 3-Pentanon
1,1,1,2,2,4,5,5,5-Nonafluor-4-(trifluormethyl)-, Heptafluorisopropylpentafluorethylketon
FK-5-1-12
CAS 756-13-8 

FK-649 is not an HFC, but a residue-free fluoroketone solvent.
Replacement for previous fluids: sulfur hexafluoride (SF₆) and hydrofluorocarbons (HFCs), such as HFC-134a and HFC-245fa. 

• Non-flammable
• Non-electrically conductive
• Low global warming potential (GWP)
• No ozone depletion potential (ODP)
• Clear, colorless, low odor
• Wide liquid temperature range
• Low toxicity

Application examples: 

FK-649 is used in a wide variety of heat transfer and immersion cooling applications

• Electronics cooling (single- or two-phase)
• Power electronics such as IGBTs or inverters
• Transformers and other devices (SF6 replacement)
• Immersion cooling for data centers and computers
• Organic Rankine cycle
• Diesel engines
• Generators
• Geothermal energy
• Solar applications

For heat transfer applications, its favorable environmental, health, and safety characteristics make it a long-term sustainable solution, helping to improve reliability, address environmental concerns, and reduce total cost of ownership. This makes FK-649 particularly suitable for heat transfer, electronics cooling, and thermal management applications where flammability or environmental impacts are a concern.

Properties of FK-649 compared to 3M™ Novec™ 649