Registration Dossier
Registration Dossier
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EC number: 288-312-5 | CAS number: 85711-52-0
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)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- GLP compliance:
- no
- Type of method:
- pycnometer method
- Type:
- relative density
- Density:
- ca. 1.01
- Temp.:
- 20 °C
- Conclusions:
- The substance was tested for relative density following OECD 109. Under the experimental conditions the relative density at 20°C is 1.01
- Executive summary:
The substance was tested for relative density following OECD 109. Under the experimental conditions the relative density at 20°C is 1.01
Reference
Relative density was determined by means of a pycnometer as per recommendations of OECD 109.
Density was calculated from the difference in weight between the full and empty pycnometer and its volume.
5.1 Instruments:
Shimadzu AX 120 analytical weighing balance (0.0001 g), 25 ml pycnometers per powders.
5.2 Procedure:
Empty pycnometers were kept in humidity free conditions during 24 hs prior to testing. One empty pycnometer was weighed (WP1), then filled with n-Hexane, kept for 20 min. at 20ºC and weighed
again (WHP). Another pycnometer was weighed (WP2), filled to half its volume with the test substance and weighed again (WS), then filled with n-hexane, kept during 20 min. at 20ºC and weighed again (WHS).
5.3 Calculations:
Absolute density of a substance (d) is calculated as:
dsubs = WS / Vsubs = WS / (Vpyc – Vhex) = WS / (Vpyc – WH2 / dHex) = WS / (Vpyc – WH2 * Vpyc / WH1)
Relative density is calculated as: dsubs / 0.999973
Description of key information
The substance was tested for relative density following OECD 109 (K-Cons, 2018). Under the experimental conditions the relative density at 20°C is 1.01
Key value for chemical safety assessment
- Relative density at 20C:
- 1.01
Additional information
The substance was tested for relative density following OECD 109. Under the experimental conditions the relative density at 20°C is 1.01
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