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EC number: 200-867-7
CAS number: 75-38-7
fluoride is a colourless, odourless gas and has a melting point of
-144ºC and a boiling point of -83ºC (The
Matheson Gas Data Book, 1966).
accordance with column 1 or 2 of REACH Annex VII-IX, with section 1 or 2
of REACH Annex XI and/or the REACH guidance on information requirements
and chemical safety assessment (chapter R7.A), data on the particle
size, flash point, stability in organic solvents and identity of
relevant degradation products, explosivity, dissociation constant and
viscosity are not needed as the substance is a gas.
accordance with column 2 of REACH Annex VII, a relative density study
does not need to be conducted as the substance is a gas. An estimation
based on calculation shall be made from molecular weight and the Ideal
Gas Laws. The
relative density with respect to air can be obtained by: RD = ρgas/ρair
= Mgas/Mair. As the molecular weight of air is 28.97 and the molecular
weight of VDF is 64.04, the relative density is 64.04/28.97 = 2.21.
Nevertheless data is available showing that vinylidene fluoride has a
relative density of 0.59-0.62 (
Handbook of Thermodynamic and Physical Properties of Chemical Compounds,
Thermodynamic Properties of Halogenated Ethanes and Ethylenes, 1955).
This value refers to liquid vinylidene fluoride under its autogenous
pressure (about 36 - 40 bar).
In accordance with
Annex XI and Chapter R.7 of REACH guidance on information requirements
and chemical safety assessment, the vapour pressure study does not need
to be conducted for substances with a boiling point < 30 ºC, as these
substances will have a vapour pressure above the limit of measurement
(>1x10E5 Pa). Nevertheless data is available showing that vinylidene
fluoride has a vapour pressure of 35900 hPa at 20ºC (Thermodynamic
Properties of Halogenated Ethanes and Ethylenes, 1955).
partition coefficient (log Pow) is 1.24 (Chou et al., 1979 - Hansch et
al., 1995) and the water solubility is 254 mg/l at 28ºC (Oriani, 2001).
Based on its
structure, vinylidene fluoride is not expected to be surface active.
self-ignition temperature is 640ºC (Chemical
properties handbook, physical, thermodynamic, environmental, transport,
safety, and health related properties for organic and inorganic
chemicals, 1999). As the lower
and upper flammability limits are 5.8% and 20.3%, respectively (Baratov,
1965), vinylidene fluoride has to
be classified as extremely flammable (F+, R12 according to EU Directive
67/548/EEC and H220 according to EU Classification, Labelling and
Packaging of Substances and Mixtures (CLP) Regulation (EC) No.
1272/2008). As a result, the substance does not need to be tested for
fluoride is a under pressure gas thus it has to be classified as H280
(contains gas under pressure; may explode if heated) according to CLP
Regulation (EC) No. 1272/2008.
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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