Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 690-995-3 | CAS number: 756-12-7
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
The vapor pressure of CAS# 756-12-7 is 707 mm Hg (94.3 kPa) at 25 °C
Key value for chemical safety assessment
Additional information
The vapor pressure of CAS# 756-12-7 was evaluated in three studies. In the key study, the vapor pressure was determined by a static method equivalent to OECD 104 and EEC directive 92/69 EEC, Annex V, Part A.4. The sample was carefully degassed by repeated evacuation of the chilled sample chamber. In the second study, the vapor pressure was determined to be 710 mm Hg at 25 °C, also by a static method, which supports the key study results. The second study is classified as acceptable without restriction and satisfies the guideline requirements for test method OECD 104 and EEC directive 92/69 EEC, Annex V, Part A.4 and is compliant with GLP standards. The third study follows ASTM E-1719-97 and ASTM D1120-94. In the third study, the vapor pressure was determined to be 719 mm Hg (95.9 kPa) which supports the key study results. The key study is the preferred value due to the careful degassing steps performed by the testing laboratory. Errors in vapor pressure measurements are typically biased toward higher readings due to the effect of complications with dissolved gases such as air. This effect is exacerbated in fluids with high solubility for gases, most notably fluorochemicals such as CAS# 756-12-7.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
