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EC number: 700-990-0 | CAS number: -
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
Determination of the Vapour Pressure of Phosflex 71B by Isothermal Thermogravimetry
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 20 °C
Additional information
Three methods were tested in order to determine the vapor pressure of Phosflex 71B:
Method |
VP value [Pa] |
Recommended range according to OECD 104. |
spinning rotor gauge method |
1.08*10^-3 (20 oC) |
10^-4 to 0.5 Pa |
Effusion method: vapour pressure balance |
4.2*10^-5 (25 oC) |
10^-3 to 1 Pa |
Effusion method: isothermal thermogravimetry |
3.23*10^-4 (20 oC) |
10^-10 to 1 Pa |
In the spinning rotor gauge method and effusion method: vapour pressure balance the values determined are out of the guideline recommended range. Thus, the vapor pressure of Phosflex 71B was found to be 3.23 x 10^-4 Pa at 20 degrees Celsius using effusion method: isothermal thermogravimetry .
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