Registration Dossier
Registration Dossier
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EC number: 947-921-2 | CAS number: -
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- read-across based on grouping of substances (category approach)
- Adequacy of study:
- key study
- Study period:
- November 27, 2017
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- KL2 due to RA
- Justification for type of information:
- Refer to section 13 of IUCLID for details on the Category justification. The study with the read across substance is considered sufficient to fulfil the information requirements as further explained in the provided endpoint summary.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Deviations:
- not specified
- GLP compliance:
- yes
- Type of method:
- buoyancy method - hydrostatic balance
- Key result
- Type:
- relative density
- Density:
- ca. 1.339 other: Dimensionless
- Temp.:
- 20.2 °C
- Conclusions:
- Based on the results of the read across study, the relative density of the test substance is considered to be 1.339 at 20.20°C.
- Executive summary:
A study was conducted to determine the relative density of the read across substance, 'Cocodimonium hydroxypropyl hydrolysed wool' (active: 62.8%), according to the OECD Guideline 109, hydrostatic balance method, in compliance with GLP. Under the study conditions, the relative density of the read across substance was determined to be 1.339 at 20.20°C (Scymaris, 2017). Based on the results of the read across study, similar relative density is expected for the test substance, 'Steardimonium hydroxypropyl hydrolysed wool'.
Reference
Density test results
Test Substance |
Test Temperature (°C) |
Density of water at test temperature (g/cm3) |
W (a) Weight of substance in air (g) |
G Buoyancy |
Relative Density (g/cm3) |
Mean Density (g/cm3) |
Standard deviation |
Relative standard deviation (%) |
1014.053 |
20.1 |
0.99821 |
0.32732 |
0.23964 |
1.36487 |
1.33859 |
0.03716 |
2.78 |
1014.053 |
20.2 |
0.99819 |
0.45711 |
0.34807 |
1.31232 |
|||
1014.053 |
20.2 |
0.99819 |
0.29948 |
0.21425 |
1.39671 |
Description of key information
Relative density of the read across substance was determined using the hydrostatic balance method, according to OECD Guideline 109 (Scymaris, 2017).
Key value for chemical safety assessment
- Relative density at 20C:
- 1.339
Additional information
(based on the results of the read across study)
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.
