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Physical & Chemical properties

Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2009-11-16
Reliability:
1 (reliable without restriction)
Reason / purpose:
reference to same study
Reason / purpose:
reference to other study
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
92/69/EEC
Deviations:
no
Principles of method if other than guideline:
NA
GLP compliance:
not specified
Type of method:
pycnometer method
Type:
relative density
Density:
1.39 g/cm³
Temp.:
20 °C

relative density (D 4/20, average) = 1.39 +/- 0.28 (95 % confidence interval)

Sample Density (g/cm3) 
 1 1.38 
 2 1.40 
3 1.39
 Mean 1.39 
Conclusions:
The relative density (D4/20) of dipotassium persulfate was determined to 1.39 +/- 0.28 g/cm3 at 20 °C (95 % confidence interval).
Executive summary:

Following EU method A.3, the relative density ( D4/20) of dipotassium persulfate was determined to 1.39 +/- 0.28 g/cm3 at 20 °C (95 % confidence interval). Three separate tests were carried out:

Sample Density (g/cm3) 
 1 1.38 
 2 1.40 
3 1.39
 Mean 1.39 

Description of key information

Following EU method A.3, the relative density (D4/20) of dipotassium persulfate was determined to 1.39 ± 0.28 g/cm³ at 20 °C (95 % confidence interval).

Key value for chemical safety assessment

Relative density at 20C:
1.39

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/cm³ and 1.68 g/cm³ at 20 °C.