Registration Dossier
Registration Dossier
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EC number: 213-497-6 | CAS number: 959-26-2
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimental starting date 29th June.2021. Experimental completion date 9th July 2021. Final report 10th November 2021
- Reliability:
- 1 (reliable without restriction)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Version / remarks:
- adopted 02. Oct. 2012: “Density of Liquids and Solids “
- Deviations:
- no
- Principles of method if other than guideline:
- None
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- pycnometer method
- Specific details on test material used for the study:
- Name BHET
Batch no. AWS0274J
CAS no. 959-26-2
Composition Bis-2-Hydroxy Ethyl Terephthalate (BHET) ~94 wt%;
BHET dimer ~5 wt%; Mono 2-Hydroxy Ethyl
Terephthalate (MHET) <1.0 wt%; 2-Hydroxy Ethyl 2-
(2-Hydroxy Ethoxy)Ethyl Terephthalate <0.5 wt%; Bis-
2-Hydroxy Ethyl Isophthalate (BHEI) <0.1 wt%;
Ethylene Glycol <1.0 wt%; Water <0.2 wt%
Storage room temperature (20 ± 5 °C)
Expiry date 04. Feb. 2023
Stability stable under storage conditions
Appearance White solid
Purity ~95 %
Homogeneity homogeneous
Production date 15. Dec. 2020
EC no. 213-497-6
Molecular formula C12H14O6
Molecular weight 254.24 g/mol
Vapour pressure not stated
Solubility in solvents H2O: > 1 g/L; EtOH: not stated; acetone: not stated;
CH3CN: not stated; DMSO: not stated;
Stability in solvents H2O: not stated; EtOH: unknown; acetone: unknown;
CH3CN: unknown; DMSO: unknown - Type:
- relative density
- Density:
- ca. 1.298 g/cm³
- Temp.:
- 20 °C
- Conclusions:
- The density of the test item BHET was calculated as 1.2981 ± 0.0004 g/cm³ at 20.0 ± 0.2 °C. This value is the mean of two independent determinations with the maximum error of a single determination.
Standard deviation was 0.0007 g/cm³, showing very good correlation of the two determinations.
Therefore, the study is considered valid.
Reference
| Density in g/cm3 | error in determination. in g/cm3 | |
| 1. Determination | 1.2986 | 0.0004 |
| 2. Determination | 1.2977 | 0.003 |
| Parameter | |||
| volume of pycnometer | 50.45 cm3 | 0.00024 | 0.00% |
| density of test item | 1.2981 g/cm3 | 0.0007 | 0.05% |
| density of test item | 1298.1 kg/m3 | 0.07 | 0.05% |
| relative density of test item | 1.2981 | 0.0007 | 0.05% |
All calculations are performed with unrounded values.
Description of key information
The registered item has a density of 1.2981 ± 0.0004 g/cm³ at 20.0 ± 0.2 °C
Key value for chemical safety assessment
- Relative density at 20C:
- 1.298
Additional information
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