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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties


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Administrative data

Link to relevant study record(s)

Description of key information

Waiving (study scientifically unjustified).

Key value for chemical safety assessment

non explosive

Additional information

Justification for classification or non-classification

Dibasic lead phthalate does not require classification for explosiveness.

The experimental determination of the explosivity of a compound is not required, if available thermodynamic data (reaction enthalpies) and/or the absence of certain reactive groups (Bretherick, 1990) in the structural formula indicate that the substance will not decompose violently under formation of gases or release of energy (and thus does not pose a risk for explosivity). In the following text, the calculations which are in accordance with the requirements set forth above are briefly described. The calculations and assessment of reactive groups performed for phthalic acid are considered to be equally relevant for the phthalate anion. Since this analysis has provided adequate justification to assume that phthalic acid lacks explosive properties, and given that the lead cations and lead oxide also present in this inorganic compound are considered to be “inert” in the context of explosivity, the substance “dibasic lead phthalate “ is therefore also considered to be void of any explosive properties. Finally, it is noted that despite the long-term use of dibasic lead phthalate, this substance is not classified for explosive properties according to UN transport regulations. In conclusion, the conduct of further experimental verification is not considered to be required, and for the reasons stated above, derogation from testing is hereby applied for.