Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
Multiple studies
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data

Data source

Reference
Reference Type:
other: American Chemical Society publication search using the software SciFinder. Search completed and exported on 15Jan2018.
Title:
Unnamed
Year:
2018
Report Date:
2018

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
The data is obtained from a literature search utilising 13 seperate melting point studies to obtain a melthing point range. The methods are not apparent from the literature however all are from peer reviewed journals and considered reliable.
GLP compliance:
not specified
Type of method:
other: data from collection of results

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Details on test material:
Identity: 1,5-Dinitronaphthalene
CAS number: 605-71-0
EC number: 210-095-2
Formula: C10H6N2O4
Molecular weight (g mol-1): 218.17
Specific details on test material used for the study:
Not Specified

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
>= 210 - <= 220 °C
Atm. press.:
ca. 1 atm
Decomposition:
ambiguous
Remarks:
Not specified

Applicant's summary and conclusion

Conclusions:
A literature search (see attached for references) gave a range of resuts for the experimental melting point. These ranged from 145.5°C to 219°C, however the 145.5°C result was considered to be inaccurate given that 14/15 studies concluded the melting point was >200°C.

The average melting point obtained from the remaining 14 studies was calculated as 215°C from the remaining studies, 13/15 summarised studies gave results withing the range 210-220°C - this has been included as representative melting point range for this substance.
Executive summary:

A literature search (see attached for references) gave a range of resuts for the experimental melting point. These ranged from 145.5°C to 219°C, however the 145.5°C result was considered to be inaccurate given that 14/15 studies concluded the melting point was >200°C.

The average melting point obtained from the remaining 14 studies was calculated as 215°C, with 13/15 summarised studies giving results withing the range 210-220°C - this has been included as representative melting point range for this substance.