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Description of key information

Following EU method A.3, the relative density ( D4/20) of disodium persulfate was determined to 1.68 ± 0.29 g/cm³ at 20 °C (95 % confidence interval).

Key value for chemical safety assessment

Relative density at 20C:

Additional information

The relative density (D4/20) for the substances of the Persulfate Category was determined according to EU method A.3 applying the pycnometer method. The determined values for diammonium-, -potassium- and -sodium persulfate were 1.26 g/cm³, 1.39 g/cm3³ and 1.68 g/cm³ at 20 °C.