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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Calculated: 2.03 × 10-10 

Key value for chemical safety assessment

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

Additional information

Based on the REACH Regulation, Annex VII, Column II, the study does not need to be conducted if the melting point is above 300 °C. Basic Blue 159 decompose at temperature between 195 and 240°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. Basic Blue 159 decomposes at a temperature between 195 and 240 °C.

An estimated value with Mpbpwin v.1.43* using the following smile has been reported to perform the risk assessment:

CC(C)N(C(C)C)c2nn(C)(OS(=O)(=O)OC)c(/N=N/c1ccc(cc1)N(C)C)s2

* Mpbpwin is an application contained in the EpiSuite 4.1, the suite of physical/chemical property and environmental fate estimation programs developed by the EPA’s Office of Pollution Prevention Toxics and Syracuse Research Corporation (SRC).