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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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:
data from handbook or collection of data

Data source

Reference
Reference Type:
publication
Title:
Regioselective Synthesis of 1,2,4-Triazol-3(2H)-ones and their 3(2H)-Thiones: Kinetic Studies and Selective Pyrolytic Deprotection
Author:
Heteroatom Chemistry Volume 14, Number 1, 2003 Regioselective Synthesis of 1,2,4-Triazol-3(2H)-ones and their 3(2H)-Thiones: Kinetic Studies and Selective Pyrolytic Deprotection Nouria A. Al-Awadi, Yehia A. Ibrahim, Kamini Kaul, and Hicham Dib
Year:
2003
Bibliographic source:
Heteroatom Chemistry Volume 14, Number 1, 2003

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
data from handbook or collection of data
GLP compliance:
not specified
Type of method:
other: data from handbook or collection of data

Test material

Constituent 1
Chemical structure
Reference substance name:
1,2,4-triazole-3-thiol
EC Number:
221-656-6
EC Name:
1,2,4-triazole-3-thiol
Cas Number:
3179-31-5
Molecular formula:
C2H3N3S
IUPAC Name:
4H-1,2,4-triazole-3-thiol
Test material form:
solid: crystalline

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
>= 215 - <= 216 °C
Decomposition:
no
Remarks on result:
other: data from handbook or collection of data

Applicant's summary and conclusion

Conclusions:
Melting point is 215–216°C.
Executive summary:

Melting point is 215–216°C.