2,2'-azobis[2-methylbutyronitrile]

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:

other: This study was selected as the key study because the information provided for the hazard endpoint is sufficient for the purpose of classification and labeling and/or risk assessment.

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7200 (Melting Point / Melting Range)

Deviations:

no

Remarks:

The study was conducted according to the test guidelines in effect at the time of study conduct.

GLP compliance:

yes

Type of method:

capillary method

Melting / freezing pt.:

>= 49.3 - <= 49.5 °C

Remarks on result:

other: test done at normal atmospheric pressure

The preliminary test indicated that the melting point of the test substance, was approximately 49.3°C.

Definitive Test

Replicate	Melting
	Temperature (°C)
1	49.4
2	49.4
3	49.3
Mean	49.4 ± 0.1 °C

Conclusions:

This study and the conclusions which are drawn from it fulfill the quality criteria (validity, reliability, repeatability).
The melting point of the test substance was determined to be 49.4 ± 0.1 °C

Executive summary:

A melting point test ( EPA OPPTS 830.7200 (Melting Point / Melting Range) was conducted on the test substance using a Mettler

FP900 Thermo system. The melting point of the test substance was determined to be 49.4 ± 0.1 °C

Description of key information

49.4 ± 0.1 °C

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

49.4 °C

Additional information

EPA OPPTS 830.7200 (Melting Point / Melting Range)