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EC number: 207-079-2
CAS number: 431-89-0
In accordance with
Annex XI and Chapter R.7 of REACH Guidance on information requirements
and chemical safety assessment, the study on vapour pressure does not
need to be conducted for substances with boiling point < 30 ºC, as these
substances will have a vapour pressure above the limit of measurement
(>1x105 Pa). However, available data indicate that the
vapour pressure of 1,1,1,2,3,3,3 -heptafluoroethane varies between 54
kPa at -30 °C to 2936 kPa at 123 °C, supporting the above argument
(Duan, 2001). The octanol/water partition coefficient (log Pow) is 2.29
(Abraham 2001), the water solubility is 0.23 g/l at 25 °C (Abraham
2001), calculated based on the substance Ostwald solubility.
Based on its
structure, 1,1,1,2,3,3,3 -heptafluoroethane is s not expected to be
surface active. The substance remains undissociated in water, as it does
not contain chemical groups which can undergo dissociation.
In accordance with
column 2 of REACH Annex X and/or with column 1 of REACH Annex IX and/or
the REACH guidance on information requirements and chemical safety
assessment (chapter R7.A), data on the particle size distribution, flash
point, stability in organic solvents and identity of relevant
degradation products, explosiveness and viscosity are not needed.
-heptafluoroethane has no flammable range and does not have to be
classified as flammable in accordance with EU Directive 67/548/EEC and
EU Classification, Labeling and Packaging of Substances and Mixtures
(CLP) Regulation (EC) No. 1272/2008. As the substance is a gas with no
flammable range, the data on auto flammability
are not required in accordance with Column 2 of REACH Annex VII.
In accordance with column 2 of REACH Annex
VII the study on explosive properties does not need to be conducted as
there are no chemical groups associated with explosive properties
present in this substance. In addition according to REACH guidance on
information requirements and chemical safety assessment, methods are
only applicable for liquids and solids.
oxidizing properties, in accordance with column 2 of REACH Annex VII,
does not need to be conducted as the substance does not contain oxygen
or halogen atoms chemically bonded to nitrogen or oxygen.
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.
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