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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Non-GLP study conducted to a well described method equivalent to the relevant OECD Guideline.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1980
Report date:
1980

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Measurements were made in a Perkin-Elmer model DSC-2 differential scanning calorimeter (DSC). The approximate melting point was taken from the DSC melting curve.
GLP compliance:
no
Type of method:
thermal analysis

Test material

Constituent 1
Chemical structure
Reference substance name:
2,3,5,6-tetrachloropyridine
EC Number:
219-283-9
EC Name:
2,3,5,6-tetrachloropyridine
Cas Number:
2402-79-1
Molecular formula:
C5HCl4N
IUPAC Name:
2,3,5,6-tetrachloropyridine
Details on test material:
Purity determined to be 99.67%

Results and discussion

Melting / freezing point
Melting / freezing pt.:
90.5 °C
Remarks on result:
other: Pre-melting of the substance was evident from the specific heat plot.

Applicant's summary and conclusion

Conclusions:
The melting point of the substance has been determined to be 90.5 deg C.
Executive summary:

The melting point of the substance has been determined to be 90.5 deg C using a DSC method equivalent to that specified in OECD Guideline 102.