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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:
Testing was conducted on 18 March 2010.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
(Date of GLP inspection: 2009-09-15 Date of Signature on GLP certificate: 2009-11-26)
Type of method:
air comparison pycnometer (for solids)
Type:
relative density
Density:
2.34 other: relative density does not have units
Temp.:
21 °C
Type:
density
Remarks:
mean density
Density:
2 335.7 kg/m³
Temp.:
21 °C

Results

Calibration

The pressure readings (P1and P2) and the calculated volume for the calibration ball are shown in the following table:

Determination

P1

P2

Volume (cm3)

Certified Volume (cm3)

Tolerance

(cm3)

A

17.144

6.710

1.068

1.073

± 0.05

B

17.077

6.677

1.048

1.073

± 0.05

C

17.816

6.970

1.059

1.073

± 0.05

D

17.147

6.706

1.053

1.073

± 0.05

Sample

The pressure readings, calculated volumes and density values obtained for the test item are shown in the following table:

Determination

P1

P2

Volume (cm3)

Density

(kg/m3)

A

17.569

6.682

0.514

2347.0

B

17.357

6.601

0.513

2324.3

Temperature:            21.0 ± 0.5ºC
Mean density:                       2335.7 kg/m3
Relative density:                   2.34

Conclusions:
The relative density of the test item has been determined to be 2.34 at 21.0 ± 0.5°C.

Description of key information

Relative density: 2.34 at 21°C (EU Method A.3, GLP)

Key value for chemical safety assessment

Relative density at 20C:
2.34

Additional information

The relative density of aluminium tris(dihydrogen phosphate) (CAS 13530 -50 -2, EC 236 -875 -2) was determined in accordance with EU Method A.3 using the gas comparison method at a temperature of 20 ± 0.5°. The relative density of the test item has been determined to be 2.34 at 21.0 ± 0.5°C.