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Physical & Chemical properties

Water solubility

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Description of key information

According to column 2 of Annex VII Regulation (EC) No 1907/2006 (REACH), the water solubility was notconductetdas the substance is hydrolytically instable at pH 4, 7 and 9.

Key value for chemical safety assessment

Water solubility:
0 mg/L
at the temperature of:
25 °C

Additional information

According to column 2 of Annex VII Regulation (EC) No 1907/2006 (REACH), the water solubility was not conductetd as the substance is hydrolytically instable at pH 4, 7 and 9. In additon a determined by QSAR estimation with the programme EPIWIN using WSKOW v.1.42 that is recommended in the REACH Guidance on information requirements and chemical safety assessment, Chapter R.7.1.7.3, Table R.7.1-21 was done. The water solubility of SIKA Hardener LTJ was calculated to be 1.723e-18 mg/L for Oligomere n=2, 1.39e-20 mg/L for Oligomere n=6 and 2.044e-21 mg/L for Oligomere n=10 at 25 deg C respectively. Thus, SIKA Hardener LTJ was considered insoluble. In addition Sika Hardener LTJ is a reaction mixture (different oligomeres) of the two substances 2,2-Dimethyl-3-lauroyloxypropanal (CAS No. 102985-93-3) and Polyetheramin T 403 (CAS No. 39423-51-3). Upon contact with water SIKA Hardener LTJ rapidly degrades.The hydrolysis products (aldehyde and amine) reveal the following water solubilites:

- Dimethyl-3-lauroyloxy-propanal: 0.22 mgL-1 (theoretical)

- Polyetheramin T 403: miscible