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EC number: 807-754-7
CAS number: 89929-57-7
4.6/1: Results of the isothermal TGA analysis
Weight loss [μg/min]
7.70 x 10-4
8.69 x 10-4
1.46 x 10-3
1.51 x 10-3
2.47 x 10-3
2.52 x 10-3
3.91 x 10-3
4.06 x 10-3
4.6/2: Vapour pressure of the test substance
4.3 x 10-2
8.4 x 10-2
The equation of the curve was: log PT
= -5012 × 1/T + 17.86 (r = 0.997, n = 8).
vapour pressure of the test substance was measured, under GLP, according
to OECD 104 / EU A4 guideline, using the
isothermal thermogravimetric effusion method.
The system was calibrated with five
reference substances, with VP between 1.33 E-8 and 2.34 E+3 Pa at 20°C,
as a linear regression.
TGA analysis of the test substance was performed between 25 °C
and 40 °C.
the test substance at 20°C and 25°C were determined using the vapour
pressure regression curve.
vapour pressure of the test substance at 20 °C (293 K) and 25 °C (298 K)
was 5.8 Pa (4.3 × 10-2 mm
A fully reliable experimental study,
conducted according to a recognized OECD/EC method and under GLP, is
available. Therefore, it is considered as a key study. The interpolated
result at 25°C is retained as key value.
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