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EC number: 942-705-4 | CAS number: 2151868-08-3
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: According to official guidelines
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Principles of method if other than guideline:
- The vapour pressure of the test item (PT) was determined by the isothermal thermogravimetric effusion method. The method is validated in the range 10-8 – 103 Pa using a set of five reference substances with known vapour pressures. The validity of the method was verified maximum one month before this study using hexachlorobenzene as reference control substance. Since the logarithm of the evaporation rate at 20°C (log vT, 20) deviated < 10% from the average value obtained during the validation test, it was possible to apply the constants obtained with the validation test for the determination of the vapour pressure of the test item. A suspension of the test item in n-Hexane was applied to the surface of a roughened glass plate as a homogeneous layer. The plate was dried under nitrogen in the thermogravimetric analyzer (TGA). The amount of dried test item was 7.09 or 8.30 mg.
- GLP compliance:
- yes
- Type of method:
- other: isothermal thermogravimetric effusion method
Test material
- Reference substance name:
- 2-[(1E)-2-[(1E)-2-chloro-1-{2-[(2E)-1,1-dimethyl-3-(4-sulfobutyl)-1H,2H,3H-benzo[e]indol-2-ylidene]ethylidene}-1H-inden-3-yl]ethenyl]-1,1-dimethyl-3-(4-sulfonatobutyl)-1H-benzo[e]indol-3-ium
- EC Number:
- 942-705-4
- Cas Number:
- 2151868-08-3
- Molecular formula:
- C49 H49 Cl N2 O6 S2
- IUPAC Name:
- 2-[(1E)-2-[(1E)-2-chloro-1-{2-[(2E)-1,1-dimethyl-3-(4-sulfobutyl)-1H,2H,3H-benzo[e]indol-2-ylidene]ethylidene}-1H-inden-3-yl]ethenyl]-1,1-dimethyl-3-(4-sulfonatobutyl)-1H-benzo[e]indol-3-ium
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- Identification: V516690
Appearance: Brown to green powder (determined at WIL Research Europe)
Batch: V516690/AY
Purity/Composition: LC-MSpurity (Area% UV-VIS): 95.8% (Reference: PA064492)
Test item storage: At room temperature
Stable under storage conditions until 17 July 2016 (expiry date)
Molecular formula: C49H49ClN2O6S2
MW: 861.52
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- 20 °C
- Vapour pressure:
- < 0 Pa
- Remarks on result:
- other: the vapour pressure of the test item was determined to be lower than that of chrysene
- Temp.:
- 20 °C
- Vapour pressure:
- < 0 mm Hg
- Remarks on result:
- other: the vapour pressure of the test item was determined to be lower than that of chrysene
- Temp.:
- 25 °C
- Vapour pressure:
- < 0 Pa
- Remarks on result:
- other: the vapour pressure of the test item was determined to be lower than that of chrysene
- Vapour pressure:
- < 0 mm Hg
- Remarks on result:
- other: the vapour pressure of the test item was determined to be lower than that of chrysene
Any other information on results incl. tables
The weight loss of the test item at 170°C, 180°C, 190°C and 200°C was lower than the weight loss of chrysene at the same temperatures. According to this the vapour pressure of the test item was determined to be lower than that of chrysene.
Applicant's summary and conclusion
- Conclusions:
- The isothermal TGA effusion method was applied for the determination of the vapour pressure of V516690.
The vapour pressure of the test item at 20°C (293K) was <8.4 x 10-7 Pa ( <6.3 x10-9 mm Hg)
The vapour pressure of the test item at 25°C (298 K) was <2.0 x 10-6 Pa ( <1.5 x 10-8 mm Hg)
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