Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2008--07-09
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report Date:
2008

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
no
Remarks:
not mandatory
Type of method:
other: Modified Watson Correlation, Lyman et al. (1990)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): FAT 40840/A TE
- Substance type: colouring dye
- Physical state: solid, dark red powder
- Analytical purity: approx. 78.9% org. part (NA-salt), MC: 37.7%, Oligomers: 19.2%
- Purity test date:
- Lot/batch No.: ROE 358 BOP 01/07
- Expiration date of the lot/batch: June 30, 2012
- Storage condition of test material: At room temperature at about 20°C

Results and discussion

Vapour pressure
Temp.:
25 °C
Vapour pressure:
ca. 0 Pa
Remarks on result:
other: The calculated value is 8.96 x 10^-41 Pa

Any other information on results incl. tables

The boiling point of FAT 40840/A TE was calculated to be approximately 1041.19 °C using Meissner’s method

Note: The vapor pressure was calculated only for the anionic part of the molecule. Using the Meissner’s method for the calculation of the boiling point, it is not possible to take the ionic character into account. The calculation should be regarded as a rough estimation and the real vapor pressure of FAT 40840/A TE is below 8.96 x 10 -41 Pa at 25 °C.

The vapour pressure of FAT 40840/A TE was estimated to be 8.96 x 10 -41 Pa at 25°C

Applicant's summary and conclusion

Conclusions:
Based on the structure of the main component of FAT 40840/A TE and using the Modified
Watson Correlation the boiling point and vapor pressure of FAT 40840/A were calculated.
The boiling point was calculated to be approximately 1041.19 °C and the vapor pressure was
estimated to be 8.96 x 10-41 Pa at 25 °C
Executive summary:

If the vapor pressure is expected to be so small that the value is below the measurement range of an experimental determination (e.g. the gas saturation method), then the vapor pressure can also be calculated, using the Modified Watson Correlation. The calculation is based on the relation ship of the boiling points (at atmospheric pressure) with chemical type. The boiling point of FAT 40840/A TE is necessary for the calculation of the vapor pressure and was calculated using the Meissner’s method

The boiling point of FAT 40840/A TE was calculated to be approximately 1041.19 °C using Meissner’s method.

The vapor pressure of FAT 40840/A TE was estimated to be 8.96 x 10-41 Pa at 25 °C based on the boiling point calculated and using the Modified Watson Correlation.