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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

p-TSH is a white solid at room temperature (the median particle size of the test substance was 25.60242 (μm) and the mean size 28.74505 (μm)). It has the following chemical-physical properties:

Melting temperature: 110oC

Boiling temperature: Decomposes

Relative density: 1.298

Vapor pressure at 20oC: 3.9E-6 Pa

It is considered a non-flammable solid. It starts to melt and decompose at about 105 -110oC releasing primarily the non-flammable nitrogen (N2) and water.


The self-reactive properties of toluene-4-sulphonohydrazide tested according to UN Test Series A to H described in Part II of the UN RTDG, Manual of Tests and Criteria (BAM, 1992, results provided in confidential Annex of CLH report, fulfil the criteria for classification self-reactive substance TYPE D).

Additional information