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EC number: 215-235-6
CAS number: 1314-41-6
Waiving for flammability in contact with water and pyrophoric
properties; read-across used for flammable solids, from lead metal
powder (testing according to EU Methods A.10).
No classification required.
Flammable solids - read-across: the source substance, lead metal
powder, could not be ignited with a flame and was thus deemed "not
classified" under Regulation 1272/2008. Since lead tetroxide represents
a further oxidised form of lead and is thus intrinsically less
combustible than lead itself, a test conducted according to the same
method can not reasonably be expected to yield any result other than
"not flammable". Testing of lead tetroxide is not required in accordance
with REACH Annex XI, Section 1.5 (read-across). Furthermore, during
several decades of manufacture, marketing and downstream use, the
substance has never been reported to exhibit flammability.
Pyrophoricity - waiver: Lead tetroxide does not contain any
components that might lead to spontaneous ignition a short time after
coming in contact with air at room temperature (circa 20°C), and
long-term industrial handling of the substance has not yielded any
The study can be waived (scientifically not necessary / other
information available) because the substance is known to be stable in
contact with air at room temperature for long periods of time.
Flammability in contact with water - waiver: Lead tetroxide does
not contain groups that might lead to a reaction with water or damp air,
leading to the development of dangerous amounts of gas or gases which
may be highly flammable. Furthermore, experience in practical handling
of the substance shows that it does not react with water, and
experimental testing for water solubility has not reported formation of
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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