Registration Dossier
Registration Dossier
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EC number: 231-701-1 | CAS number: 7691-02-3
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Version / remarks:
- 1.4.4 / DIN 51757
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Remarks:
- DIN EN ISO 9001:2015
- Type of method:
- oscillating densitimeter
- Key result
- Type:
- relative density
- Density:
- 0.822
- Temp.:
- 20 °C
- Conclusions:
- A relative density of 0.822 was determined in an experimental study using an appropiate guideline method. This result is considered reliable.
Reference
Results
Measurement |
Density 20 °C [g/cm3] |
Relative density D20/4* |
Test 1 |
0.82224 |
0.82227 |
Test 2 |
0.82223 |
0.82226 |
Mean value |
0.822 |
0.822 |
* The relative density D20/4 is the ratio between the measured density of the test substance at 20 °C and the density of water at 4 °C (= 0.99997 g/cm3). The relative density is dimensionless.
Description of key information
Relative density, D20/4: 0.822 at 20 °C (OECD 109)
Key value for chemical safety assessment
- Relative density at 20C:
- 0.822
Additional information
A relative density of 0.822 was determined in an experimental study using an appropriate guideline method. This result is considered to be reliable and as such is selected as a key value.
The key value is supported by a predicted density of 0.85 g/cm3 at 20 °C using a validated QSAR estimation method. The result is considered to be reliable.
The relative density of the structural analogue, (1,1,1,3,3,3-hexamethyldisilazane, CAS 999-97-3) was reported as 0.7742 at 20 °C in a handbook or collection of reliable data. The data for the substance has been included as supporting information for read across in the acute dermal toxicity section.
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.
