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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
September 23, 1996 to October 29, 1996
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study according to OECD 102

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1997
Report date:
1997

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
other: melt microscope

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
427-720-1
EC Name:
-
Cas Number:
26364-65-8
Molecular formula:
C4H5N3S
IUPAC Name:
[(1,3-thiazolidin-2-ylidene)amino]formonitrile
Details on test material:
name: Cyanamide, (4,5-dihydroxy-2-thiazolyl)-
molecular formula: C4 H5 N3 S
molecular weight: 127.2
physical state: solid
analytical purity: 99.8 %

Results and discussion

Any other information on results incl. tables

Test Melting range Melting after re-solidification Comment Melting point
No. 1 151.2- 151.7 °C 132.5 °C   152 °C (decomposition)
No. 2 (1 54.8-1 55 °C) (138.2 -138.8°C) melting occured under decomposition, formation of decomposition products
No. 3 151.6- 152.3 °C 137.7- 138.2 °C  
No. 4 151.6- 152.2 °C 138.2 °C  

Applicant's summary and conclusion

Conclusions:
The test item melts under decomposition at 152 °C.
Executive summary:

The melting point was determined according to OECD 102 using a melt microscope.

The test item melts under decomposition at 152 °C.