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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Density

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Endpoint:
density
Remarks:
density
Type of information:
read-across based on grouping of substances (category approach)
Adequacy of study:
supporting study
Study period:
February, 2009
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Although not GLP and insufficient procedural reporting, there is no reason to doubt the results obtained from these straight forward and routinely used test. Furthermore, results are completely in line with general available information.
Justification for type of information:
Refer to the Quaternary ammonium salts (QAS) category or section 13 of IUCLID for details on the category justification.
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
GLP compliance:
no
Type of method:
oscillating densitimeter
Key result
Type:
density
Density:
ca. 0.987 g/cm³
Temp.:
20 °C
Conclusions:
Under the study conditions, the density of the 50.2% aqueous solution of read across substance was found to be 0.987 g/cm3 at 20°C (oscillating densitimeter).
Executive summary:

A study was conducted to determine the density of the 50.2% aqueous solution of the read across substance, C12-16 ADBAC (50.2% active in water) according to OECD Guideline 109 (oscillating densitimeter). Under the study conditions, the density of the 50.2% aqueous solution of read across substance was found to be 0.987 g/cm3 at 20°C (Mulder, 1996). Based on the results of the read across, a similar density is expected for the test substance.

Endpoint:
density, other
Remarks:
density
Type of information:
read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Study period:
From November 24, 2006 to December 20, 2006
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
KL2 due to RA
Justification for type of information:
Refer to the Quaternary ammonium salts (QAS) category or section 13 of IUCLID for details on the category justification.
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
GLP compliance:
yes
Type of method:
pycnometer method
Key result
Type:
density
Density:
0.929 g/cm³
Temp.:
20 °C
Conclusions:
Under the study conditions, the density of the read across substance was 0.929 g/cm3 at 20°C (pycnometer method).
Executive summary:

A study was conducted to determine the density of the read across substance, C12-16 ADBAC (purity: 94.4%) according to OECD Guideline 109, in compliance with GLP. The pycnometer method was used in this experiment. Under the study conditions, the density of the read across substance was 0.929 g/cm3 at 20 °C (Schulze, 2007). Based on the results of the read across, a similar density is expected for the test substance.

Description of key information

The density was determined based on a study conducted with read across substance, C12 -16 ADBAC, using the oscillating densitometer and pycnometer method according to OECD Guideline 109 (Schulze, 2007 and Mulder, 1996) 

Key value for chemical safety assessment

Relative density at 20C:
0.929

Additional information

Relative density (RD) of the pure form of the read across substance: 0.929 (Schulze, 2012); RD of the 50% aqueous solution of the read across substance: 0.99 (Mulder, 1996)