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EC number: 269-052-1
CAS number: 68186-90-3
This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 77310.
The substance is considered as insoluble
since water solubility is < 0.1 mg/L (see IUCLID chapter 4.8, water
solubility) and a negligible bioavailability of the metal ions was
proven for the inhalation and oral route (see IUCLID chapter 7.1.1 basic
For the assessment of the DNELs the German
AGW value (maximum occupational limit; formerly MAK) for inert dusts was
taken into account. In 1997, the German MAK commission stated the AGW of
the respirable fraction of inert dusts to be 4 mg/m3 in order to prevent
unspecific local effects in the respiratory tract (predominantly chronic
bronchitis). This value is used for the derivation of the No Effect
Level for long-term exposure of local effects.
The AGW of the alveolar fraction was
stated to be 1.5 mg/m3.
The substance is not handeled by the general population and there is no
consumer use for the pure material.
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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