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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:
August 23, 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
GLP compliance:
no
Type of method:
other: Stirred test tube
Key result
Melting / freezing pt.:
-2.3 °C
Atm. press.:
101 325 Pa

Melting / Freezing Point Results

Read Number Temperature (°C)
1 1.0
2 0.7
3 0.5
4 0.4
5 0.3
6 0.1
7 0.0
8 -0.5
9 -0.7
10 -1.0
11 -1.3
12 -1.7
13 -2.0
14 -2.3
15 -2.3
16 -2.3
17 -2.3
18 -2.6
Conclusions:
The freezing point of PPG-2 myristyl ether propionate was concluded to be -2.3 °C at 101325 Pa.
Executive summary:

The freezing point of PPG-2 myristyl ether propionate was determined in line with OECD Guideline 102 (Melting point / Melting Range) without deviation. A stirred test tube procedure was adopted and as the sample was permitted to cool, the temperature was measured at regular intervals. The temperature fell constant between reading number 14 until 17 and the freezing point of PPG-2 myristyl ether propionate was, therefore, established to be -2.3 °C at 101325 Pa.

Description of key information

PPG-2 myristyl ether propionate has a freezing point of -2.3 °C at 101325 Pa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-2.3 °C

Additional information

The freezing point was determined according to OECD Guideline 102 (Melting point / Melting Range) without deviation. The final figure is concluded to be a key value for use in chemical safety assessment and has been assigned a reliability score of 1 (reliable without restriction).

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