Registration Dossier
Registration Dossier
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EC number: 232-504-3 | CAS number: 8060-28-4
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Justification for type of information:
- Hop extract has a long history of industrial manufacture, and so company specific information from product technical specifications would be sufficient. However, three batches of hop extract were measured in the Lead Registrant's laboratory to corroborate the technical specification information.
- Qualifier:
- no guideline required
- Principles of method if other than guideline:
- Three different hop extracts were used - standard hop extract batch no. 160024, standard hop extract batch number 160026, and oil-rich hop extract batch number BI/YYF/1701. The hop extracts were melted by placing in a drying cabinet at 68.8 oC. The hop extracts were then introduced into pre-weighed 25-ml volumetric flasks. The gross weight of the flask plus hop extract was determined at 20.5 oC. Reverse osmosis water was then added to the flasks to bring the total volume up to 25 ml, and the weight measured again. The weights were used to calculate the density of the hop extracts.
- Type of method:
- other: Similar to oycnometer method
- Specific details on test material used for the study:
- Three different hop extracts were used - standard hop extract batch no. 160024, standard hop extract batch number 160026, and oil-rich hop extract batch number BI/YYF/1701.
- Key result
- Type:
- relative density
- Density:
- >= 0.9 - <= 1.1 g/cm³
- Temp.:
- 20 °C
- Conclusions:
- The density of the UVCB hop extract is between 0.9 and 1.1 g per cm^3.
Reference
Material |
Batch no. |
Tare weight 25-ml volumetric flask (g) |
Gross weight flask + extract (g) |
Weight of hop extract added (g) |
Weight of flask + hop extract + reverse osmosis water added to bring total volume to 25 ml (g) |
Weight of reverse osmosis water required to bring total volume to 25 ml (g) |
Volume of hop extract calculated by difference (cm3) |
Calculated density of hop extract (g.cm-3) |
Hop extract |
160024 |
33.1345 |
34.7593 |
1.6248 |
58.0874 |
23.3281 |
1.6719 |
0.9718 |
Hop extract |
160026 |
22.4552 |
23.8192 |
1.3640 |
47.4168 |
23.5976 |
1.4024 |
0.9726 |
Oil-enriched hop extract |
BI/YYF/1701 |
33.0182 |
35.9233 |
2.9051 |
57.9652 |
22.0419 |
2.9581 |
0.9821 |
Description of key information
Key value for chemical safety assessment
- Relative density at 20C:
- 1
Additional information
The density of the UVCB hop extract is between 0.9 and 1.1 g per cm^3.
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.
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