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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018.2.27 - 2018.4.5
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
not specified
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
Sample name : supplied as a name of ESA
Appearance : White powder
Chemical name : 1,3,2-Dioxathiolane, 2,2-dioxide
Cas No. : l 072-53-3
Purity: 100 %
Melting / freezing pt.:
97.9 °C
Atm. press.:
101.3 kPa
Decomposition:
no

Sample name

Item

Run

Temperature

ºC

K

ESA

Tm

1

98.0

371.15

2

97.86

371.01

Average

97.93

371.08

Notes) Temperature in Kelvin (K) = Temperature in ºC + 273.15

The sample was measured by differential scanning calorimeter (DSC)

Tm: melting temperature at 2nd heating (peak maximum)

The melting point of the sample was measured by DSC. The maximum endothermic peak was observed at 98.00 ºC and 97.86 ºC for the first

and second test respectively. The melting point is reported as the average value of the test results, 97. 9 ºC.

After the experiment, the sample appeared to be melted in the sample container.

Melting point average: 97.9 ºC (371. l K)

Conclusions:
Melting temperature of ESA was (97.9 ± 0.5) ºC {(371.1 ± 0.5) K} at 101.3 kPa by DSC.
Executive summary:

Melting temperature of ESA was (97.9 ± 0.5) ºC {(371.1 ± 0.5) K} at 101.3 kPa by DSC.

Description of key information

Melting temperature of ESA was (97.9 ± 0.5) ºC {(371.1 ± 0.5) K} at 101.3 kPa by DSC.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
97.9 °C

Additional information