Registration Dossier
Registration Dossier
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EC number: 235-546-0 | CAS number: 12270-13-2
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Justification for type of information:
- For justification of read-across please refer to the read-across report attached to IUCLID section 13.
- Reason / purpose for cross-reference:
- read-across source
- Key result
- Type:
- density
- Density:
- 1.35 g/cm³
- Temp.:
- 20 °C
- Key result
- Type:
- relative density
- Density:
- 1.35 other: dimensionless
- Temp.:
- 20 °C
- Conclusions:
- The relative density at ambient temperature (compared to water at 4 °C) was determined to be:
D4R= 1.35 (20.0 °C) - Executive summary:
The density determination was performed with the gas comparison pycnometer according to OECD 109. The aparatus with a measured amount of the test item in the measurement chamber is swept 10 times with 19.5 psi Helium (purity min. 99.99 %) at a constant and regulated environmental temperature. Thereafter, the valve to the expansion chamber (volume = Vr) is opened and a certain amount of gas expands from the measurement chamber (volume = Vc) containing the test item to the expansion chamber. The volume of the test item Vsis calculated of the pressure drop from p1to p2caused by the gas expansion. Two individual test series containing three measurements were performed. The density was calculated from the mass of the sample and its measured volume for each measurementbwfore the results were averaged.The estimated accuracy of this method is ±0.01 g/cm³.
The relative density at ambient temperature (compared to water at 4 °C) was determined to be:
D4R= 1.35 (20.0 °C)
This information is used in a read-across approach in the assessment of the target substance.
For justification of read-across please refer to the attached read-across report (see IUCLID section 13).
Reference
Description of key information
The density determination was performed with the gas comparison pycnometer according to OECD 109.
The relative density at ambient temperature (compared to water at 4 °C) was determined to be:
D4R= 1.35 (20.0 °C)
This information is used in a read-across approach in the assessment of the target substance.
For justification of read-across please refer to the attached read-across report (see IUCLID section 13).
Key value for chemical safety assessment
- Relative density at 20C:
- 1.35
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
