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Description of key information

Henry's Law Constant characterizes the equilibrium distribution of dilute concentrations of volatile, soluble chemicals between the gas and liquid phases.  The hydrotropes are not volatile chemicals and therefore estimating a Henry's Law Constant is not feasible or relevant.

Key value for chemical safety assessment

Additional information

Vapour pressure, a measure of volatility, is not required under REACH for substances with a melting point above 300C. A 2009 melting point ISO Guideline study of a closely related substance, sodium cumene sulphonate, reported there was no decomposition and no sublimation at up to 350C and 1 atm. The measurements were done in triplicate. Hydrotropes are not volatile substances.