Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Remarks:
no guideline followed

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Thermal gravimetric analysis: sample was heated to 750°C (2°C/min ramp; helium atmosphere) in a Pt pan and weight loss was monitored throughout the temperature ramp.
GLP compliance:
no
Type of method:
thermal analysis

Test material

Constituent 1
Chemical structure
Reference substance name:
Tetrahydrogen [29H,31H-phthalocyanine-2,9,16,23-tetrasulphonato(6-)-N29,N30,N31,N32]cobaltate(4-)
EC Number:
238-200-7
EC Name:
Tetrahydrogen [29H,31H-phthalocyanine-2,9,16,23-tetrasulphonato(6-)-N29,N30,N31,N32]cobaltate(4-)
Cas Number:
14285-59-7
Molecular formula:
C32H16CoN8O12S4
IUPAC Name:
tetrahydrogen [29H,31H-phthalocyanine-2,9,16,23-tetrasulphonato(6-)-N29,N30,N31,N32]cobaltate(4-)

Results and discussion

Melting / freezing point
Key result
Decomposition:
yes
Decomp. temp.:
>= 198 °C
Remarks on result:
other:
Remarks:
see below

Any other information on results incl. tables

The observed onset of weight loss at 198°C indicates that the sample material is thermally unstable before melting. Observation of a dark gray powder (color change) after thermal treatment up to 750°C also indicates that the material is thermally unstable.

Applicant's summary and conclusion

Conclusions:
The test material decomposed upon heating, starting at 198°C, and was still under powder form up to 750°C.