Registration Dossier

Physical & Chemical properties

Flammability

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Description of key information

Lithium hydroxide anhydrous and monohydrate are non-flammable according to the conducted study. Flammability upon contact with water: The chemical structures of lithium hydroxide anhydrous and lithium hydroxide monohydrate indicate that there are no groups associated with flammability properties (Ref.: R.7a: Guidance on information requirements and chemical safety assessment, EU-Document (May 2008)). Further, experience in handling and use does not indicate flammability upon contact with water. Further, the chemical structures of lithium hydroxide anhydrous and lithium hydroxide monohydrate indicate that there are no groups associated with pyrophoric properties. The test substances do not contain any chemical group that might lead to spontaneous ignition shortly after coming into contact with air at room temperature (Ref.: R.7a: Guidance on information requirements and chemical safety assessment, EU-Document (May 2008)). Based on experience in handling and use there is also no indicator for pyrophoric properties. Further, lithium hydroxide and its monohydrate do not meet the criteria for self-heating substances.

Key value for chemical safety assessment

Flammability:
non flammable

Additional information

A flammability study was performed according to UN Recommendations on the Transport of Dangerous Goods, Manual of Test and Criteria, N1: Test Method for readily combustible solids, subsection 33.2.1.4. Based on this, lithium hydroxide anhydrous and its monohydrate are non-flammable. (FMC, 2010)

Justification for classification or non-classification

The available experimental test data are reliable and suitable for classification purposes under Regulation (EC) No 1272/2008. Based on available data on flammability, the test item is not classified according to Regulation (EC) No 1272/2008 (CLP), as amended for the tenth time in Regulation (EU) No 2017/776.