Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Principles of method if other than guideline:
Data from Handbook
GLP compliance:
not specified
Type of method:
other: No provided
Key result
Melting / freezing pt.:
>= 180 - <= 184 °C
Decomposition:
yes
Decomp. temp.:
ca. 184 °C
Conclusions:
The range of melting point of Thiosemicarbazide is 180 -184ºC.
Executive summary:

According to the Handbook of Environmental Data on Organic Chemicals, the range of melting point of Thiosemicarbazide is 180 -184ºC and in this temperature the test item decomposes.

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Principles of method if other than guideline:
Data from Handbook
GLP compliance:
not specified
Type of method:
other: No provided
Key result
Melting / freezing pt.:
ca. 183 °C
Conclusions:
The melting point of Thiosemicarbazide is 183ºC.
Executive summary:

According the CRC handbook, the melting point of Thiosemicarbazide is 183ºC.

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Principles of method if other than guideline:
Article data obtained from the Ullmanns encyclopedy.
GLP compliance:
not specified
Type of method:
other: Not provided
Key result
Melting / freezing pt.:
ca. 180 °C
Conclusions:
The melting point of Thiosemicarbazide is 180ºC.
Executive summary:

According the Ullmann encyclopedy, the melting point of Thiosemicarbazide is180ºC.

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Principles of method if other than guideline:
Data from handbook
GLP compliance:
not specified
Type of method:
other: Not provided
Key result
Melting / freezing pt.:
>= 182 - <= 184 °C
Conclusions:
The range of melting point of Thiosemicarbazide is between 182-184ºC.
Executive summary:

According the Merck index, the range of melting point of Thiosemicarbazide is between 182-184ºC.

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Principles of method if other than guideline:
Data from handbook
GLP compliance:
not specified
Type of method:
other: Not provided
Key result
Melting / freezing pt.:
>= 180 - <= 184 °C
Conclusions:
The range of melting point of Thiosemicarbazide is between 180-184ºC.
Executive summary:

According the handbook of Toxic and Hazardous Chemicals and Carcinogens, the range of melting point of Thiosemicarbazide is between 180-184ºC.

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Principles of method if other than guideline:
Data from Publication: Journal of National Cancer Institute.
GLP compliance:
not specified
Type of method:
other: Not provided
Key result
Melting / freezing pt.:
>= 180 - <= 181 °C
Decomposition:
yes
Decomp. temp.:
ca. 181 °C
Conclusions:
The range of melting point of Thiosemicarbazide is 180 -181ºC.
Executive summary:

According to the present publication from the Journal of the National Cancer Institute the range of melting point of Thiosemicarbazide is 180 -181ºC and in this temperature the test item decomposes.

Description of key information

Weight of evidence: Based on the available data from the handbooks, the melting point of Thiosemicarbazide is between 180ºC and 184ºC.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
183 °C

Additional information

Weight of evidence: Based on the available data from handbook of Environmental Data on Organic Chemicals and handbook of Toxic and Hazardous Chemicals and Carcinogens with the range of melting point:180 - 184ºC, CRC handbook with melting point temperature 183ºC, temperature 180ºC from Ullmann´s encycloped, range 182 -184ºC from Merck index and range 180 -181ºC from publication from the Journal of the National Cancer Institute , the final melting point of Thiosemicarbazide is between 180ºC and 184ºC.