Environmental Profiles of Chemical Flame-Retardant Alternatives for

Oxidation/Reduction: No data
Melting Point:
Conclusion: The available melting point data for TDCPP are adequate.
Basis for Conclusion: The key study (highlighted) was performed according to a reliable
method. It is noted that the other literature data do not agree with the key study; however, the
methods used to measure the melting points are not provided in any of the sources. As an
OECD-guideline compliant method, the key study is better described and better supported.
Melting Point (/C) References
-58 Akzo Nobel, 2001a,b: melting point determination by DSC (compliant with OECD
Guideline 102), freezing point was determined to be -40/C, melting point -58/C
27 CERI, 1999
26.66 Akzo Nobel, 2003
Boiling Point:
Conclusion: The boiling point data are adequate.
Basis for Conclusion: A variety of literature sources report the same value for the boiling point,
although there is some indication that the compound may decompose at or near the boiling point.
Since experimental details are not provided in any of the sources, it is not possible to determine
whether the temperatures reported are decomposition or boiling temperatures. Nevertheless,
given the high boiling point reported for this material, the available data are adequate to
characterize its potential volatility.
Boiling Point (/C/torr) References
236-237/5 SRC, 2004 (PHYSPROP database); Budavari, 2001 (The Merck Index);
Lewis, 2000 (Sax’s Dangerous Properties of Industrial Materials);
WHO, 1998
200/4 Akzo Nobel, 2003
Dec. >200/4 WHO, 1998
Gradual Dec. >200 HSDB, 2003
Vapor Pressure:
Conclusion: The available vapor pressure data are not adequate
Basis for Conclusion: Although this measured vapor pressure is reported in two sources, it
appears to be very high relative to the boiling points reported for this chemical. For comparison,
an estimated vapor pressure (EPIWIN) is also included in the table below. The vapor pressure
remains a data need.
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