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EC number: 201-114-5 | CAS number: 78-40-0
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- not specified
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- Published handbook information.
- Principles of method if other than guideline:
- No further information is reported
- GLP compliance:
- not specified
- Type of method:
- other: not stated in handbook
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.523 hPa
- Transition / decomposition:
- no
- Executive summary:
In the Handbook of Vapor Pressure, the vapour pressure of the substance is reported to be 0.523 hPa at 25°C.
- Endpoint:
- vapour pressure
- Type of information:
- not specified
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- Published handbook information
- Principles of method if other than guideline:
- No further information is reported
- GLP compliance:
- no
- Type of method:
- other: method not stated in handbook
- Temp.:
- 20 °C
- Vapour pressure:
- 0.1 hPa
- Temp.:
- 90 °C
- Vapour pressure:
- 10 hPa
- Executive summary:
In the Handbook of Environmental Data on Organic Chemicals, the vapour pressure of the substance is reported to be 0.1 hPa at 20 °C and 10 hPa at 90 °C.
Referenceopen allclose all
The vapour pressure of the substance is reported to be 0.523 hPa at 25°C.
The vapour pressure of the substance is reported to be 0.1 hPa at 20 °C and 10 hPa at 90 °C.
Description of key information
A vapour pressure value of 0,523 hPa (52,3 Pa) at 25°C is retained for Triethylphosphat. (handbooks)
Low volatility (based on volatility bands criteria for occupational exposure (Chesar / ECETOC TRA), 0,01 - 500 Pa).
Key value for chemical safety assessment
- Vapour pressure:
- 0.523 hPa
- at the temperature of:
- 25 °C
Additional information
Two handbooks, considered as reliable sources, report vapour pressure values for the substance, and are therefore presented in a Weight-of-Evidence approach:
The vapour pressure of the substance is reported to be 0.523 hPa at 25°C in (Yaws et al, 1994) and 0.1 hPa at 20°C and 10 hPa at 90°C in (Verschueren, 1996)
The higher, i.e. worst-case value is retained as key data.
As supporting data, (Daubert & Danner, 1989) reports a consistent value of 0.39 mmHg (= 52 Pa) at 25°C .
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