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EC number: 269-198-6 | CAS number: 68189-42-4
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 16 December 2020 - 06 January 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:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Version / remarks:
- 1996
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- (EC) No. 440/2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 2006
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: Knudsen cell
Test material
- Reference substance name:
- Methanol
- EC Number:
- 200-659-6
- EC Name:
- Methanol
- Cas Number:
- 67-56-1
- Molecular formula:
- CH4O
- IUPAC Name:
- methanol
- Reference substance name:
- Acetone
- EC Number:
- 200-662-2
- EC Name:
- Acetone
- Cas Number:
- 67-64-1
- Molecular formula:
- C3H6O
- IUPAC Name:
- acetone
- 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:
- p-nitrophenyl dihydrogen phosphate, compound with 2-amino-2-(hydroxymethyl)propane-1,3-diol (1:2)
- EC Number:
- 269-198-6
- EC Name:
- p-nitrophenyl dihydrogen phosphate, compound with 2-amino-2-(hydroxymethyl)propane-1,3-diol (1:2)
- Cas Number:
- 68189-42-4
- Molecular formula:
- C6H6NO6P.2C4H11NO3
- IUPAC Name:
- 4-nitrophenyl dihydrogen phosphate - 2-amino-2-(hydroxymethyl)propane-1,3-diol (1:2)
- Test material form:
- solid
- Details on test material:
- Batch / Lot No. 46587100
impurity 1
impurity 2
impurity 3
Constituent 1
- Specific details on test material used for the study:
- Batch No.: 46587100
Storage Conditions: Refrigerator (approx. 2 °C to 8 °C)
Results and discussion
Vapour pressureopen allclose all
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: extrapolated vapour pressure
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: extrapolated vapour pressure
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: extrapolated vapour pressure
Any other information on results incl. tables
The vapour pressure was measured in the temperature range of 89 to 119 °C. The measured vapour pressure values together with the measured temperatures are shown in the table in the next section "overall remarks".
From the measured data points of the vapour pressure curve the constants A and B of the Antoine equation: log10(p) = A + B/T = A + B/(C+t) can be derived by regression of the data points to
A = 16.1103; B = -7043.89; C = 273.15.
Applicant's summary and conclusion
- Conclusions:
- The vapour pressure of the test item 4-NPP, di-TRIS (CAS no. 68189-42-4) was calculated by extrapolation of the measured vapour pressure curve for the temperatures 20 °C, 25 °C and 50 °C, according to Regulation (EC) No. 440/2008 Method A.4. Vapour Pressure and OECD Test Guideline 104 (2006): 1.2 x E-8 Pa at 20°C, 3.1 x E-8 at 25°C and 2.1 x E-6 at 50°C.
- Executive summary:
The vapour pressure of the test item 4-NPP, di-TRIS (CAS no. 68189-42-4) was calculated by extrapolation of the measured vapour pressure curve for the temperatures 20 °C, 25 °C and 50 °C, according to Regulation (EC) No. 440/2008 Method A.4. Vapour Pressure and OECD Test Guideline 104 (2006):
Temperature / °C
Vapour pressure / Pa
20
1.2 • 10-8
25
3.1 • 10-8
50
2.1 • 10-6
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