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EC number: 926-099-9 | CAS number: -
Dissociation constant
Administrative data
Link to relevant study record(s)
Description of key information
This end-point study is waived, as the study is scientifically unjustified. Dissociation is defined as being the reversible splitting into two or more ionic chemical species (OECD guideline 112). MMVF note Q fibres are inorganic mineral fibres which is slightly water soluble through non-reversible leaching of inorganic chemical species into water.
Key value for chemical safety assessment
Additional information
Dissociation is defined as reversible splitting into two or more ionic chemical species (OECD guideline 112). MMVF note Q fibres are inorganic mineral fibres which are slightly water soluble through non-reversible leaching of inorganic chemical species. The species dissolved in water are ionic. They are not able to recombine into the original non-dissociated glass state.
It is noted that Kdis (the dissolution constant) reported in this dossier in connection to the toxicological assessment of the MMVF note Q fibres is a parameter used to determine the ability of the fibres to break down (dissolve) into smaller fragments in the human body, which should be considered as separate data.
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