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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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relative density
Type of information:
experimental study
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data from peer-reviewed handbook or collection of data (also assessed by OECD)
no guideline followed
Principles of method if other than guideline:
No information given on method used
GLP compliance:
not specified
Type of method:
other: No details given
relative density
1.21 g/cm³
50 °C
The relative density at 50°C is given as 1.21g/cm3
Executive summary:

Relative density 1.21g/cm3 at 50oC

Description of key information

A value of 1.21 g/m³ is given at 50 °C for TPP as relative density.

Key value for chemical safety assessment

Additional information

Similar values are reported for the density of TPP when present as a melt at 50 °C or 60 °C. These values range between 1.18 and 1.27 g/cm3. These results show that TPP is heavier than water.