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Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
02 March - 06 April 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
GLP compliance:
yes (incl. certificate)
Type of method:
air comparison pycnometer (for solids)
Key result
Type:
relative density
Density:
1.813
Temp.:
20 °C

The relative density of test substance was determined using the gas comparison method at a temperature of 20 °C.

The determination of the relative density was performed by three-fold measurements of two independent test item samples. The individual readings are summarised in Table 1.

The density of test substance was determined to be 1.813 g/cm³ (= 1813 kg/m³) at 20 °C.

Table 1: Determination of the Density of diphosphoric acid, compound with 1,3,5-triazine-2,4,6-triamine (1:2)

Measurement

Temperature [°C]

Sample cell (empty) [g]

 

Sample cell (filled) [g]

Amount of test item

[g]

Pressure p11[psi]

Pressure p21[psi]

Sample volume2

[cm3]

Density3 [g/cm3]

 

19.5

4.1140

11.5926

7.4786

15.121

4.876

4.127

1.812

19.5

 

 

7.4786

15.102

4.869

4.121

1.815

19.5

 

 

7.4786

15.126

4.877

4.123

1.814

 

 

 

 

 

Mean4:

 

1.814

 

 

 

 

 

SD:

 

0.002

19.5

4.1140

11.6078

7.4938

15.136

4.882

4.136

1.812

19.5

 

 

7.4938

15.135

4.881

4.131

1.814

19.5

 

 

7.4938

15.109

4.873

4.134

1.813

 

 

 

 

 

Mean4:

 

1.813

 

 

 

 

 

SD:

 

0.001

Results:

Mean Value5: 1.813

Standard Deviation: 0.0005

1pressure readings obtained after pressurising the sample cell filled with test item

23with volume reference cell: 11.7280 cm3and volume sample cell: 28.7690 cm3

4mean of replicate measurements

5mean of independent sample values

SD standard deviation

Conclusions:
In conclusion, the relative density of diphosphoric acid, compound with 1,3,5-triazine-2,4,6-triamine (1:2) was determined to be 1.813.

Description of key information

Relative density D420= 1.813

Key value for chemical safety assessment

Relative density at 20C:
1.813

Additional information

The relative density of diphosphoric acid, compound with 1,3,5-triazine-2,4,6-triamine (1:2) (CAS 13518-93-9, EC236-860-0) was determined according to OECD Guideline 109 and GLP using the gas comparison method at a temperature of 20 °C (Wagner-Rivas V, 2017).

The determination of the relative density was performed by three-fold measurements of two independent test item samples. The density of diphosphoric acid, compound with 1,3,5-triazine-2,4,6-triamine (1:2) (CAS 13518-93-9, EC236-860-0) was determined to be 1.813 g/cm³ (= 1813 kg/m³) at 20 °C.