Registration Dossier

Physical & Chemical properties

Viscosity

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Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

Additional information

In accordance with the REACH Regulation (Annex XI, 2.), a study does not need to be done if testing is technically not feasible. The study on viscosity (information requirement section 7.17) cannot be conducted on solid materials or gases. According to ECHA Chapter 7 guidance, viscosity measurement is only relevant to liquids. L-Threonine mother liquor is a solid after drying.