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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Physical & Chemical properties

Vapour pressure

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Description of key information

Negligible

Key value for chemical safety assessment

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

Additional information

The substance decomposes before melting (240 - 360 °C).

The vapour pressure value has been estimated using MPBPVP v1.43*, for completeness sake.

Vapour pressure has been estimated 7.4E-034 Pa at 25 °C, based on the Modified Grain method. The estimation has been conducted on the substance not salificated.

The estimated value confirms that vapour pressure can be considered as a negligible property of Direct Red 253.

*MPBPVP v.1.43 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).