Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

relative self-ignition temperature (solids)
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
Justification for type of information:

If the heat developed either by a reaction of the substance with oxygen or by exothermic decomposition is not lost rapidly enough to the surroundings, self-heating leading to self-ignition occurs. Self-ignition therefore occurs when the rate of heat-production exceeds the rate of heat loss.

Long-term industrial experience of manufacturing and handling the substance has not demonstrated any self-ignition properties.

Furthermore, by way of extrapolation, lead metal powder has been tested according to EU-Method A.10, yielding a result of “not flammable”. It can therefore be assumed that lead metal powder is not ignitable or auto-flammable. In consequence, since basic lead sulphate represents an inorganic salt containing lead in an oxidised status (2+) and a stable anion of an inorganic acid, the substance is intrinsically less combustible than lead itself and will not undergo self-ignition. Furthermore, no exothermic decomposition was reported (DSC analysis) up to a temperature of 600 °C for basic lead sulphate. Thus, it can safely be assumed not to be ignitable or auto-flammable for basic lead sulfate.

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion