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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Physical & Chemical properties


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Administrative data

Link to relevant study record(s)

Description of key information

≥3 mm²/s (static) at 100°C

Key value for chemical safety assessment

Additional information

The viscosity for heavy fuel oils is generally ≥3 mm2/s at 100°C. A static viscosity value of 6.0 to 55.0 mm2/s at 100°C was reported for heavy fuel oil grades based on fuel specification according to ISO 3104 Determination of kinematic viscosity and calculation of dynamic viscosity method. The result (CONCAWE, 1998) is considered to be reliable and has been selected as key study.

Supporting data indicate that the viscosity of heavy fuel oils ranges from 3.6 to 396 mm²/s (static) at 100°C (CONCAWE, 2010a).