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EC number: 281-897-8
CAS number: 84057-80-7
The DSC run PN4014 in a closed glass
crucible under nitrogen atmosphere is shown in figure 1.The test
itemshowed an endothermic effect in the temperature range of
200 – 250 °C,directly followed by an exothermal effect up to 270 °C with
an energy of -10 J/g.
Results of the DSC-measurements on
Sample weight / mg
Start of effect / °C
Energy / J/g
50 (endothermic)-10 (exothermal)
Melting and Boiling Point
In the temperature range of
90 – 150 °C an endothermic effect could be
observed. In the temperature range of 200 – 340 °C a first exothermal
effect with a decomposition energy of -160 - -190 J/g and in the
temperature range of 340 – 500 °C a second exothermal effect with a
decomposition energy of -560 J/g could be observed.
In both DSC measurements a mass loss
after the complete run in the temperature range from room temperature to
500 °C of 45 - 47 % could be observed.
on melting and boiling point
30 (endothermic)-190 (exothermal)-560 (exothermal)
40 (endothermic)-160 (exothermal)-550 (exothermal)
The test item has no melting point and
no boiling point under atmospheric pressure (1013 hPa) up to the
decomposition temperature of 200 °C.
Additional Measurement with
the BÜCHI apparatus:
For the verification of the DSC
measurements an additional measurement with the capillary method was
performed. Therefore three capillaries were filled with the test item up
to 0.4 cm height. The measurement was started at 25 °C. The temperature
was increased with a heating rate of 10 K/min up to a temperature of
of the BÜCHI measurement
Temperature / °C
The colour of the test item changed to light yellow.
The colour of the test item changed to light brown.
Up to a temperature of 410 °C no
melting or boiling of the test item could be observed.
Zirconium propionate has no melting point and no boiling point at atmospheric pressure (1013 hPa) up to the decomposition temperature of 200 °C.
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