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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Before 1973
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Justification for type of information:
The study was conducted before OECD criteria were adopted. The method used for the assessment is a recognized test principle in the OECD guideline no. 104.

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1973
Report date:
1973

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
not specified
GLP compliance:
no
Type of method:
effusion method: Knudsen cell
Remarks:
Differential colorimetry combined with Knudsen effusion

Test material

Constituent 1
Chemical structure
Reference substance name:
1,2-dihydroxyanthraquinone
EC Number:
200-782-5
EC Name:
1,2-dihydroxyanthraquinone
Cas Number:
72-48-0
Molecular formula:
C14H8O4
IUPAC Name:
1,2-dihydroxy-9,10-dihydroanthracene-9,10-dione
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
- Purity: 99.5 moles %
- Source: Fluka

Results and discussion

Vapour pressure
Key result
Temp.:
298 K
Vapour pressure:
0 Pa

Any other information on results incl. tables

Vapour pressure at 25°C (298 K) was calculated using the Clapeyron-Clausius equation from the ΔHvap= 29055 cal/mol at 467 K and corresponding vapour pressure 6.16 e-5 atm.

Applicant's summary and conclusion

Conclusions:
The vapour pressure of the test item is 1.2 e-7 Pa at 25°C indicating low volatility.
Executive summary:

In this study, vapour pressure of the test item was assessed utilizing a technique based on differential calorimetry combined with Knudsen effusion cell. The data reported allowed to calculate the vapour pressure at 25°C (298 K), i.e. 1.2 e-7 Pa. The test substance has a low volatility.