1-chloro-4-[(prop-2-yn-1-yloxy)methyl]benzene

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

GLP compliance:

yes (incl. QA statement)

Type of method:

thermal analysis

Remarks:

DSC

Specific details on test material used for the study:

Name of test material (as cited in study report): 1-chloro-4-(prop-2-ynoxymethyl)benzene
Analytical purity: 97.9 area %. (by GC)
Impurities (identity and concentrations): < 0.1 g/100 g water
Lot/batch No.: Op 2/14
Expiration date of the lot/batch: 04. Sep 2014
Storage condition of test material: ambient temperature

Key result

Melting / freezing pt.:

-13 °C

Atm. press.:

1 013 hPa

Melting temperature

The melting temperature of the test item was found at -13 °C peak temperature in the 2nd heating after annealing at -40 °C.

Determination	Onset temperature [°C]	Peak temperature [°C]
A	-15.7	-12.8
B	-15.6	-12.8
Mean value	-16	-13

The estimated accuracy is ± 1 °C.

Observed thermic process

The test item showed a glass transition at about -100 °C in all determinations.

Exothermic peaks at about -65 °C peak temperature (all determinations) and at about -36 °C peak temperature (Test 1) showed the crystallization of the test item . A shoulder at the lower side of the melting peak at about -19 °C (Test 1) might be an effect of overlapping of crystall ization, melting and recrystallization processes during the relatively fast heating rate in Test 1.

After the tempering at -40 °C, only a single melting peak at -1 3 °C peak temperature was found (determination A and B).

In order to survey the thermic behavior of the test item a preliminary TG/DSC-Test (non-GLP) was run up to 600 °C.

An endothermic peak starting at about 100 °C with a total weight lass at about 265 °C showed the vaporization of the test item.

Description of key information

The melting point of the substance is determinded to be -13 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-13 °C

Additional information

A GLP study was conducted in accordance with the OECD Guideline for the Testing of Chemicals. 102 "Melting Point / Melting Range" using the Differential Scanning Calorimetry. BASF GLP study no. 15L00408 determined that that the test item had a melting temperature at -13 °C.