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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:
The study was conducted between 08 March 2016 and 29 April 2016.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
The study is considered to be a reliability 1 as it has been conducted according to OECD Test Guideline 102 using the differential scanning calorimetry method and in compliance with GLP.
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
27 July 1995
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
Identification: ES421 Pinyl Nitrile

SOURCE OF TEST MATERIAL
- Appearance/physical state: white solid
- Source and lot/batch No.of test material: SM15077102
- Expiration date of the lot/batch: 22 July 2016
- Purity: 98.08%

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: approximately 4 °C, in the dark
Key result
Melting / freezing pt.:
311 K

Thermographic data for determinations 1 and 2 are shown in the followingtables:

Determination 1:

Heating Step

Thermal Event

Interpretation

Temperature

°C

K

1

Endotherm

Enthalpy relaxation

~21

~294

Endotherm onset temperature

Melting point

36.35

310

2

Baseline deviation

Glass transition temperature

~20

~293

Endotherm onset temperature

Melting point

37.98

311

Determination 2:

Heating Step

Thermal Event

Interpretation

Temperature

°C

K

1

Endotherm

Enthalpy relaxation

~21

~294

Endotherm onset temperature

Melting point

39.48

313

2

Baseline deviation

Glass transition temperature

~20

~293

Endotherm onset temperature

Melting point

39.19

312

Conclusions:
The melting point of the test item, ES421 Pinyl Nitrile, has been determined to be 38 °C (311 K).
Executive summary:

The melting point of the test substance, ES421 Pinyl Nitrile, was 38 °C (311 K) by differential scanning calorimetry, using a proceduredesigned to be compatible with Method A.1 Melting/Freezing Temperature of CommissionRegulation (EC) No 440/2008 of 30 May 2008, and Method 102 of the OECD Guidelines forTesting of Chemicals, 27 July 1995.

Description of key information

The melting point of the test substance, ES421 Pinyl Nitrile, was 38 °C (311 K) by differential scanning calorimetry, using a proceduredesigned to be compatible with Method A.1 Melting/Freezing Temperature of CommissionRegulation (EC) No 440/2008 of 30 May 2008, and Method 102 of the OECD Guidelines forTesting of Chemicals, 27 July 1995.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
38 °C

Additional information