Environmental Profiles of Chemical Flame-Retardant Alternatives for

Wavelength
273.5 nm 2.36x103 l/mol-cm
218 nm 1.78x104 l/mol-cm
Viscosity: No data
Absorption
Coefficient Solvent Reference
MeOH,
HCl
MeOH,
HCl
Sadtler Standard Spectra, no date
No absorption above 290 nm
Sadtler Standard Spectra, no date
No absorption above 290 nm
Density/Relative Density/Bulk Density:
Conclusion: The density of this compound has been adequately characterized.
Basis for Conclusion: Similar values for density and relative density are available for this
material at different temperatures. Bulk density is also reported in a reputable source.
Density Reference
1.268 g/cc (60°C) Lewis, 1997 (Hawley’s Condensed Chemical Dictionary)
Bulk: 10.5 lb/gal Lewis, 1997 (Hawley’s Condensed Chemical Dictionary)
1.2055 g/cc (50°C) Lide and Milne, 1995 (CRC Handbook of Data on Common Organic
Compounds)
Specific gravity, 25°C: 1.2 Cited from Midwest Research Institute, 1979 in Huckins et al., 1991
Dissociation Constant in Water:
Conclusion: This endpoint is adequately characterized
Basis for Conclusion: TPP is not expected to dissociate under environmentally important
conditions.
Henry’s Law Constant:
Conclusion: The Henry’s Law Constant has been adequately characterized for this compound.
Basis for Conclusion: One measured and one estimated value are reported in the literature, and
are in reasonable agreement with one another. The estimated value is based on measured vapor
pressure and water solubility data.
Henry’s Law Constant Reference
1.2x10 -5 atm-m 3 /mole Cited from Mayer et al., 1981 in Huckins et al., 1991
3.31x10 -6 atm-m 3 /mole SRC, 2004 (PHYSPROP database, estimated from vapor pressure and water
solubility)
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