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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:
5 December - 8 December, 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
other: metal block method
Specific details on test material used for the study:
Identity: DNAN
Appearance: Pale yellow powder
Storage conditions: Room temperature (15 to 25°C), dark
Batch number: 55503625
Purity: 100%
Expiry date: 28 April 2019
Date received: 28 April 2017
Key result
Melting / freezing pt.:
>= 88 - <= 96 °C

Melting stage Temperature °C
sample 1 Sample 2
A - -
B 88 88
C 95 95
D 96 96
E 96 96
Conclusions:
DNAN was found to melt over the range 88 to 96°C.
Executive summary:

A study was performed to determine some physicochemical properties of the test item, DNAN. The methods followed are amongst those described in Commission Regulation (EC) No. 440/2008 and the OECD Guidelines for the Testing of Chemicals. The physicochemical properties which have been determined in this study are detailed below, together with the result obtained for each test.

EC                     OECD                     Test                     Result

method no.       method no.

A.1                     102              Melting temperature       88 to 96°C

A.2                     103              Boiling temperature       Not determinable; decomposes from approximately 300°C before boiling

A.3                     109              Relative density              1.53

Description of key information

DNAN was found to melt over the range 88 to 96°C.

Key value for chemical safety assessment

Additional information

Melting point determination was conducted as a package of physicochemical testing on DNAN (Envigo CRS Limited, NC15WS, 2018). The study was performed according to EC Method A.1 and OECD Method 102 and in compliance with GLP. The melting temperature was determined using the metal block method.

DNAN was found to melt over the range 88 to 96°C.