Registration Dossier
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EC number: 206-992-3 | CAS number: 420-04-2
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1990-02-28
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: vapour pressure balance
- Temp.:
- 20 °C
- Vapour pressure:
- 0.51 Pa
- Remarks on result:
- other: 0.51 Pa = 68 mm Hg
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 1 Pa
- Remarks on result:
- other: 1.0 Pa = 133 mm Hg
- Conclusions:
- The vapour pressure of the test item was determined to be 1.0 Pa at 25 °C.
- Executive summary:
The vapour pressure of Cyanamid F1000 was measured by the vapour pressure balance method according to the EU method A.4. The measurements were performed at 4 different temperatures between 21 and 25.2 °C. The following vapour pressure for Cyanamid F1000 was calculated to be 0.51 Pa and 1.0 Pa at 20 °C and 25 °C, respectively.
Reference
From the data obtained in the assay (the masses of the condensed sample and opening times of the aperture in different temperatures, 21 - 25.2 °C), a vapour pressure curve was established by plotting the logarithm of the vapour pressure versus the reciprocal temperature. From this plot the vapour pressures for 20 and 25 °C were calculated.
Description of key information
The vapour pressure of the test item was determined to be 1.0 Pa at 25 °C.
Key value for chemical safety assessment
- Vapour pressure:
- 1 Pa
- at the temperature of:
- 298.1 K
Additional information
The vapour pressure of Cyanamid F1000 was measured by the vapour pressure balance method according to the EU method A.4. The measurements were performed at 4 different temperatures between 21 and 25.2 °C. The following vapour pressure for Cyanamid F1000 was calculated to be 0.51 Pa and 1.0 Pa at 20 °C and 25 °C, respectively.
For the Human Health Risk assessment of L500 (50% solution of cyanamide) the vapour pressure of F1000 is used.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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