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Physical & Chemical properties

Boiling point

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Description of key information

The test material dipotassium persulfate was determined to decompose at ca. 373 K (= 100 °C) at 100.79 kPa before the boiling point was reached. Thus, no value for boiling temperature was determined (see also key study in section 4.2: Akkim, 2009).

Key value for chemical safety assessment

Additional information

The boiling point of the substances of the Persulfate Category was determined according to EU method A.2 applying photocell detection. Diammonium-, -potassium- and -sodium persulfate were found to decompose at ca. 120 °C (393 K), 100 °C (373K) and 180 °C (453 K) at atmospheric pressures of about 1000 hPa before the boiling point was reached. Thus, for all three substances, no value for boiling temperature was determined.