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EC number: 274-572-7
CAS number: 70331-94-1
melting and boiling temperature of the test substance were determined
using differential scanning calorimetry (DSC). This technique records
the difference in heat flow of two crucibles, one filled with test
substance and the other left empty as reference, while these crucibles
are subjected to a controlled temperature programme. A transition of the
test substance, such as melting or evaporation, is indicated by a
deviation from the base line in the heat flow record. Because melting
and evaporation are processes in which heat is consumed, the deviation
from the base line is in the endothermic direction for these processes.
The melting temperature or boiling temperature (if any) of the test
substance is evaluated from the DSC curve as the extrapolated onset
temperature of the endothermic melting or evaporation peak.
was conducted in accordance to:
Community (EC), EC no. 440/2008, Part A: Methods for the Determination
of Physico-Chemical Properties, Guideline A.2: “Boiling Temperature”,
Official Journal of the European Union no.L142, May 31, 2008.
for Economic Co-operation and Development (OECD), OECD Guidelines for
the Testing of Chemicals no. 103: "Boiling Point", July 27, 1995.
States Environmental Protection Agency (EPA), Product Properties Test
Guidelines no.OPPTS 830.7220: "Boiling Point/Boiling Range", August
and/or decomposition of
-hydroxyphenyl)propionat] was observed during DSC experiments starting
at 275°C (548K). Boiling of the test substance was not observed below
the temperature at which reaction and/or decomposition started. Based on
this, the test substance has no boiling temperature.
Boiling of the test substance was not observed below the temperature at
which reaction and/or decomposition started. Based on this, the test
substance has no boiling temperature.
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