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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Kinematic viscosity: 44.03 mm²/s at 20 °C and 19.61 mm²/s at 40 °C (75 % aqueous solution of Choline bicarbonate, ASTM D445/04)

Key value for chemical safety assessment

44.03 mm²/s (static)
at the temperature of:
20 °C

Additional information

The test was performed as a well-documented study according the relevant standard method ASTM D445/04, classified as Klimisch 1. The kinematic viscosity of the test item was determined reproducibly in two trials to be 44.03 mm²/s at 20 °C and 19.61 mm²/s at 40 °C. The determination of the viscosity instead of the particle size distribution is reasonable because the 75 % aqueous solution is the marketed form, the substance is not isolated and is additionally hygroscopic. Hence, the results are reliable and can be used for further risk assessment.

The outcome of the study is reliable without restrictions, consistent within the expected range and determined by a relevant method. Hence, no datagaps were identified, the study meets fully the tonnage-driven data requirements under REACH and not further testing needs to be performed.