tert-butyl α,α-dimethylbenzyl peroxide

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

Study period:

2011-06-20 to 2011-06-23

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP and guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

thermal analysis

Remarks:

Differential Scanning Calorimetry

Melting / freezing pt.:

11.3 - 19.5 °C

Atm. press.:

101.325 kPa

Remarks on result:

other: no indication on the atmospheric pressure is given : it is assumed to be at standard atmospheric pressure

	Melting Point
Determination	Tei Initial extrapoled temperature	Tp Peak Temperature		Tef Final extrapolated temperature
1	+10.9°C	+17.7°C		+19.7°C
2	+12.0°C	+17.5°C		+19.6°C
3	+11.1°C	+17.5°C		+19.2°C
Mean Standard deviation	+11.3°C 0.6°C	+17.6°C  0.1°C		+19.5°C   0.3°C

As temperatures Tei and Tp differs from more than 0.5 °C, they were both reported in the results.

Conclusions:

The melting range of the substance is 11.3°C to 19.5°C

Executive summary:

A GLP and guideline study is available. The melting range of the substance is found to be 11.3°C to 19.5°C

Description of key information

The melting range of the substance is 11.3°C to 19.5°C

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

11.3 °C

Additional information

A GLP and guideline study is available. The melting range of the substance is found to be 11.3°C to 19.5°C.