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EC number: 254-052-6 | CAS number: 38640-62-9
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- yes
- Remarks:
- ; limited reporting
- GLP compliance:
- no
- Type of method:
- dynamic method
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 1.422 Pa
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0.965 Pa
- Conclusions:
- The vapour pressure of bis(isopropyl)naphthalene (diisopropylnaphthalene - DIPN) was determined using a method similar to OECD TG 104. From the regression line of log p over 1/T, the vapour pressure at 25°C was calculated to be 1.422 Pa.
Reference
Vapour pressure of bis(isopropyl)naphthalene (diisopropylnaphthalene, DIPN - mixture of isomers)
Temperature [°C] |
90 |
134 |
149 |
166 |
175 |
190 |
211 |
Vapour pressure [hPa] |
1 |
5 |
10 |
20 |
30 |
50 |
100 |
Linear regression equation: log p = -2945.0141 (1/T) + 10.0306
Vapour pressure of bis(isopropyl)naphthalene:
Temperature [°C] |
20 |
25 |
30 |
Vapour pressure [Pa] |
0.965 |
1.422 |
2.070 |
Description of key information
The vapour pressure of bis(isopropyl)naphthalene was determined based on OECD TG 104 (dynamic method). The regression equation of the plot log p versus 1/T was used to calculate the vapour pressure at ambient temperatures.
Key value for chemical safety assessment
- Vapour pressure:
- 1.422 Pa
- at the temperature of:
- 25 °C
Additional information
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