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Diss Factsheets

Physical & Chemical properties

Density

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Administrative data

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Reference
Endpoint:
relative density
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Study period:
This study was conducted betweej 20 September 2016 and 20 January 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Information is derived from a reliable in-house study according to OECD TG 109 using the gas comparison pycnometer method.
Justification for type of information:
Please refer to the Read-across justification document enclosed in chapter 13 for more details.
Reason / purpose for cross-reference:
read-across source
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
02 October 2012
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
EC No. 440/2008 of 30 May 2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
oscillating densitimeter
Key result
Type:
relative density
Density:
ca. 1.21
Temp.:
20 °C
Key result
Type:
density
Density:
ca. 1 210 kg/m³
Temp.:
20 °C

Calibration

The pressure readings and the calculated volume for the reference and sample cells are shown in the following table:

 Determination  P1 (psig)   P2 (psig)   P3 (psig)   P4 (psig)  Reference cell volume (cm3)  Sample cell volume (cm3)
 1  14.243  6.530  17.313  8.579  90.856  149.056
 2  17.571  6.657  17.230  8.540

 90.944

 149.100
 3  14.925  6.793  17.063  8.458  91.024  149.165

Mean reference cell volume : 90.941 cm3 Mean sample cell volume : 149.107 cm3

As the reference cell volume and sample cell volume were within the defined tolerance (90.953 ± 1.0 cm3 and 149.225 ± 1.0 cm3 for the reference and sample cell volumes respectively) the gas comparison pycnometer was therefore considered acceptable for use.

Sample

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

 Determnation  Test  P1(sample) (psig)  P2(sample) (psig)  Volume (cm3)  Density (kg/cm3)  Mean Density (kg/m3)
 1  A  18.535  7.906  26.844  1.21 x 103   1.21 x 103
   B  17.811  7.597  26.839   1.21 x 103  
   C  17.227  7.343  26.696   1.22 x 103  
 2  A  17.768  7.630  28.273   1.21 x 103   1.20 x 103
   B  18.607  7.999  28.504   1.20 x 103  
   C  18028  7.719  28.474   1.20 x 103  

Mean density : 1.21 x 103 kg/m3

Relative density : 1.21

Temperature : 20.0 ± 0.5 °C

Duplicate determinations were performed to ensure a reproducibility of less than ± 20 kg/m3 was obtained

Conclusions:
The density of the test item has been determined to be 1.21 x 103 kg/m3 at 20.0 ± 0.5 °C; relative density: 1.21 in a reliable GLP study according to OECD TG 109 using the gas comparison pycnometer method.

Executive summary:

The general physico-chemical properties of Formaldehyde, reaction products with aniline, 4,4'-methylenebis[phenol] have been determined.

Density. 1.21 x 103 kg/m3 at 20.0 ± 0.5 °C, using the a gas comparison pycnometer, designed to be compatible with Method A.3 Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 109 of the OECD Guidelines for Testing of Chemicals, 02 October 2012. Relative density 1.21.

Description of key information

Density.1.21 x 103 kg/m3 at 20.0 ± 0.5 °C, using the a gas comparison pycnometer, designed to be compatible with Method A.3 Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 109 of the OECD Guidelines for Testing of Chemicals, 02 October 2012. Relative density 1.21.

This endpoint is coming from a read-across:

ARALDITE MT 35600/35610 is used as source to read across this endpoint in ARALDITE MT 35700 dossier (TARGET).

Key value for chemical safety assessment

Relative density at 20C:
1.21

Additional information