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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Vapour pressure

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Administrative data

Link to relevant study record(s)

Description of key information

Waiving

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
25 °C

Additional information

According to Annex VII of the REACH Regulation 1907/2006, Column 2, the study does not need to be conducted if the melting point is above 300 °C. If the melting point is between 200 °C and 300 °C, a limit value based on measurement or a recognised calculation method is sufficient.

Decomposition of the test item beginning at 284 °C.

The lowest value accepted by EUSES has been reported for a complete Risk assessment. The lowest value accepted by EUSES has been reported for a complete Risk assessment (0.0000001 Pa).

Other estimated values are lower than the EUSES value:

VP(mm Hg,25 deg C): 8.17E-022 (Modified Grain method)

VP (Pa, 25 deg C) : 1.09E-019 (Modified Grain method)

MPBPVP v1.43, US EPA. [2016]. Estimation Programs Interface Suite™ for Microsoft® Windows, v 4.11]. United States Environmental Protection Agency, Washington, DC, USA.

Smiles used: [Na+].Nc1cc(N)c(cc1S(=O)([O-])=O)/N=N/c2cc(ccc2O)N(=O)=O