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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: company SOP
Principles of method if other than guideline:
DSC
GLP compliance:
no
Type of method:
differential scanning calorimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
6,8-dianilinonaphthalene-1-sulphonic acid
EC Number:
204-970-8
EC Name:
6,8-dianilinonaphthalene-1-sulphonic acid
Cas Number:
129-93-1
Molecular formula:
C22H18N2O3S
IUPAC Name:
6,8-bis(phenylamino)naphthalene-1-sulfonic acid
Test material form:
solid: particulate/powder

Results and discussion

Melting / freezing point
Melting / freezing pt.:
> 250 °C
Decomposition:
yes
Decomp. temp.:
250 °C

Applicant's summary and conclusion

Conclusions:
The substance showed no meltig point. It decomposed ar about 250°C.
Executive summary:

It was tried to determin the melting point by DSC. it was not possible because the substance decomposed at abot 250 °C,