Registration Dossier
Registration Dossier
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EC number: 255-410-4 | CAS number: 41496-43-9
Density
Administrative data
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From February 03, 2021 to March 18, 2021
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 021
- Report date:
- 2021
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Version / remarks:
- 2012
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- oscillating densitimeter
Test material
- Reference substance name:
- 2-methyl-3-(p-tolyl)propionaldehyde
- EC Number:
- 255-410-4
- EC Name:
- 2-methyl-3-(p-tolyl)propionaldehyde
- Cas Number:
- 41496-43-9
- Molecular formula:
- C11H14O
- IUPAC Name:
- 2-methyl-3-(4-methylphenyl)propanal
- Test material form:
- liquid
Constituent 1
Results and discussion
Densityopen allclose all
- Type:
- relative density
- Density:
- 0.97 other: relative density is dimensionless
- Temp.:
- 20 °C
- Remarks on result:
- other: D20/4: 0.970 +/- 0.001
- Key result
- Type:
- density
- Density:
- 0.97 g/cm³
- Temp.:
- 20 °C
- Remarks on result:
- other: 0.970 g/cm3 +/- 0.001
Any other information on results incl. tables
Accuracy checking
The calibration of the instrument was verified at 20.0°C with
cyclohexane as a reference substance just before the determinations.
The results were:
Cyclohexane reference value: 0. 779 g/ml
Instrument reading (average of two readings): 0.780 g/ml
The results are within the precision of the instrument(± 0.001 g/ml).
Density determination
The results obtained
with 2-methyl-3-(p-tolyl)propionaldehyde at 20.0°C were:
first sample: p = 0.970 g/ml
second sample: p = 0.969 g/ml
average (rounded off): p = 0.970 g/ml or D (20/4) = 0.970
The estimated precision is: ± 0.001 g/ml.
Deviations from guidelines, study plan and standard operating procedures
No deviations;
Applicant's summary and conclusion
- Conclusions:
- The result can be expressed as follows: p = 0.970 ± 0.001 g/ml at 20°C or D (20/4) = 0.970 ± 0.001
- Executive summary:
The density of 2-methyl-3-(p-tolyl)propionaldehyde was determined according to the OECD guideline No. 109 (oscillating densitometer method).
The result can be expressed as follows:
p = 0.970 ± 0.001 g/ml at 20°C
or D (20/4) = 0.970 ± 0.001
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