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EC number: 602-676-8
CAS number: 12237-27-3
According to ibacon Study 126021180 the
melting range of the test item is 226.0 °C to 227.7 °C. The evaluation
of the vapour pressure was done with the reproducible weight loss values
above 230 °C, it´s means above the melting range.
The corresponding weight loss curve is shown in Appendix I, Figure
The results of the isothermal TGA analysis are given in Appendix
I, Table 2.
Appendix I, Figure 2 shows the plot of log VTof the
test item as function of the reciprocal temperatures. The coefficient of
correlation (R2) was 0.9940.
The regression line of log PTas a function of log VTused
for calibration is given in Appendix I, Figure 3. The coefficient of
correlation (R2) was 0.9945. The resulting equation was:
Inserting the equation for log VTabove, the following
equation for the temperature dependence of the vapour pressure of the
test item is obtained:
(where: a = -4.6270, b = 6.0928 C =
4.7300 and D = 1.1279)
With this equation, a following vapour pressure results were
× 10-7Pa at 20 °C.
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