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EC number: 213-579-1 | CAS number: 987-65-5
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 07 December 2016 - 29 March 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 2006
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- dynamic method
- Remarks:
- Vapour-liquid equilibrium
Test material
- Reference substance name:
- Adenosine 5'-(tetrahydrogen triphosphate), disodium salt
- EC Number:
- 213-579-1
- EC Name:
- Adenosine 5'-(tetrahydrogen triphosphate), disodium salt
- Cas Number:
- 987-65-5
- Molecular formula:
- C10H14N5O13P3.2Na
- IUPAC Name:
- disodium hydrogen [({[5-(6-amino-9H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy}(hydroxy)phosphoryl phosphonato)oxy]phosphonate
- Reference substance name:
- Water
- EC Number:
- 231-791-2
- EC Name:
- Water
- Cas Number:
- 7732-18-5
- Molecular formula:
- H2O
- IUPAC Name:
- Oxidane
- Reference substance name:
- Unknown impurities.
- Molecular formula:
- Not available as unknown impurities.
- IUPAC Name:
- Unknown impurities.
- Test material form:
- solid: crystalline
- Details on test material:
- Storage conditions: 2-8°C
Batch No: 11678500
Constituent 1
impurity 1
impurity 2
Results and discussion
Vapour pressureopen allclose all
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- < 0.1 Pa
- Remarks on result:
- other: calculated by extrapolation
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- < 0.1 Pa
- Remarks on result:
- other: calculated by extrapolation
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- < 0.1 Pa
- Remarks on result:
- other: calculated by extrapolation
Any other information on results incl. tables
In the first measurement with the vapour pressure balance, the vapour pressure was measured in the temperature range of 18 to 24 °C. Since no evaluable vapour pressure curve could be determined. Further tests were carried out using the Knudsen cell apparatus. Due to the fact that no evaluable vapour pressure curve could be recorded using the Knudsen cell method, a second measurement was performed with the vapour pressure balance in the temperature range of 28 – 118 °C. The measured vapour pressure values of the second measurement with the measured temperature are provided in the section "Overal remarks".
Due to the fact that the test item showed no proper linear correlation of the vapour pressure and the inverse temperature 1/T, the Antoine constants could not be evaluated in the measured temperature range.Due to this result, the vapour pressure for the temperatures 20, 25 and 50 °C was estimated on the basis of the maximum measured vapourpressures of 1.06 × 10-1 Pa at temperatures of 73 and 78 °C.
Applicant's summary and conclusion
- Conclusions:
- The test item ATP, Di-Na (CAS no. 987-65-5) showed no evaluable vapour pressure curve in the temperature range of 10 to 118 °C. Due to this result, the vapour pressure for the temperatures 20, 25 and 50 °C is estimated on the basis of the maximum vapour pressures measured of the second measurement using the vapour pressure balance, according to Regulation EC No. 440/2008 Method A.4. Vapour Pressure and OECD Test Guideline 104 (2006). The vapour pressure of the test item was estimated to be < 0.1 Pa at 20°C, 25°C and 50°C.
- Executive summary:
The test item ATP, Di-Na (CAS no. 987-65-5) showed no evaluable vapour pressure curve in the temperature range of 10 to 118 °C. Due to this result, the vapour pressure for the temperatures 20, 25 and 50 °C is estimated on the basis of the maximum vapour pressures measured of the second measurement using the vapour pressure balance, according to Regulation EC No. 440/2008 Method A.4. Vapour Pressure and OECD Test Guideline 104 (2006). The vapour pressure of the test item was estimated to be < 0.1 Pa at 20°C, 25°C and 50°C.
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