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EC number: 692-061-0 | CAS number: 1207435-39-9
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 13 June 2013 to 12 July 2013
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- 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)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- oscillating densitimeter
- Type:
- relative density
- Density:
- 1.146
- Temp.:
- 20 °C
- Remarks on result:
- other: upper phase
- Type:
- relative density
- Density:
- 1.132
- Temp.:
- 40 °C
- Remarks on result:
- other: upper phase
- Type:
- relative density
- Density:
- 1.174
- Temp.:
- 20 °C
- Remarks on result:
- other: lower phase
- Type:
- relative density
- Density:
- 1.157
- Temp.:
- 40 °C
- Remarks on result:
- other: lower phase
- Conclusions:
- The relative density of the upper phase was calculated to be:
r20.04.0 = 1.1463
r40.04.0 = 1.1317
The relative density of the lower phase was calculated to be:
r20.04.0 = 1.1742
r40.04.0 = 1.1568 - Executive summary:
The relative density of Fast Pyrolysis Bio-oil was determined according to OECD 109 and E.C. Method A.3. The test item separated into two phases immediately after stirring. Therefore two density determinations were performed.
The relative density of the upper phase was calculated to be:
r20.04.0 = 1.1463
r40.04.0 = 1.1317
The relative density of the lower phase was calculated to be:
r20.04.0 = 1.1742
r40.04.0 = 1.1568
- Endpoint:
- density, other
- Remarks:
- density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- July 2015
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM D4025
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- oscillating densitimeter
- Key result
- Type:
- density
- Density:
- ca. 1.17 other: kg/L
- Temp.:
- 25 °C
- Remarks on result:
- other: Sample 1
- Key result
- Type:
- density
- Density:
- ca. 1.11 other: kg/L
- Temp.:
- 25 °C
- Remarks on result:
- other: Sample 2
- Conclusions:
- Density of Fast Pyrolysis Bio-oil at 25°C was found to be 1.17 kg/L (Sample 1 Wood chips) and 1.11 kg/L (Sample 2 Forest residue).
- Executive summary:
Density of Fast Pyrolysis Bio-oil was determined with an oscillating U-tube according to ASTM D4025. The test was performed in 25°C for homogenised Fast Pyrolysis Bio-oil from Wood chips and Forest residue. Density was found to be 1.17 kg/L (Sample 1 Wood chips) and 1.11 kg/L (Sample 2 Forest residue).
Referenceopen allclose all
Description of key information
The relative density of Fast Pyrolysis Bio-oil was determined according to OECD 109 and E.C. Method A.3. The test item separated into two phases immediately after stirring. Therefore two density determinations were performed. The relative density of the upper phase was calculated to be:
r20.0 4.0 = 1.1463
r40.0 4.0 = 1.1317
The relative density of the main lower phase was calculated to be:
r20.0 4.0 = 1.1742
r40.0 4.0 = 1.1568
In the two recent studies according to ASTM D4025 density of Fast Pyrolysis Bio-oil at 25°C was found to be 1.17 kg/L (Sample 1 Wood chips) and 1.11 kg/L (Sample 2 Forest residue).
Key value for chemical safety assessment
- Relative density at 20C:
- 1.174
Additional information
According to Oasmaa et al. 1997, the density of pyrolysis liquids is about 1.2 kg/dm3 for water contents of ~25 wt%. Densities of biomass pyrolysis liquids are a function of water content (see attachment: density as a function of water content). Water content of Fast Pyrolysis Bio-oil was analysed to be ca. 31 % (see section 1.2 Composition)
REFERENCES:
Oasmaa, A., Leppämäki, E., Koponen, P., Levander, J. & Tapola, E. 1997. Physical characterisation of biomass-based pyrolysis liquids. Application of standard fuel oil analyses. Espoo, VTT. 46 p. + app. 30 p. VTT Publications 306. ISBN 951-38-5051-X.
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