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Physical & Chemical properties

Water solubility

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Description of key information

Water solubility (determined): 30.15 g/L at pH= 2.3 and T= 20 deg C

Water solubility (estimated): 3646 g/L at pH= 8.0 and T= 25 deg C

Key value for chemical safety assessment

Water solubility:
3 646 g/L
at the temperature of:
25 °C

Additional information

In accordance with REACH Regulation 1907/2006, Annex VII, Column 2, testing need not be conducted if the substance is hydrolytically unstable (with a half-life of <12 hours).

Under environmental conditions, 3-methylcyclohex-4-ene-1,2-dicarboxylic acid (3-MTHPAc), obtained ad hydrolysis product of 1,2,3,6-tetrahydro-3-methylphthalic anhydride (3-MTHPA), is fully dissociated; the water solubility was estimated to be 3646 g/L at pH= 8.