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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Melting point / freezing point

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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:
other: authoritative handbook

Data source

Reference
Reference Type:
review article or handbook
Title:
Handbook of Environmental Data on Organic Chemicals (4th Edition)
Author:
Verschueren, Karel
Year:
2001
Bibliographic source:
Knovel; online query 23.03.2011

Materials and methods

Test guideline
Guideline:
other: measured
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium hydrogen 4-amino-5-hydroxynaphthalene-2,7-disulphonate
EC Number:
226-736-4
EC Name:
Sodium hydrogen 4-amino-5-hydroxynaphthalene-2,7-disulphonate
Cas Number:
5460-09-3
Molecular formula:
C10H9NO7S2.Na
IUPAC Name:
sodium hydrogen 4-amino-5-hydroxynaphthalene-2,7-disulfonate

Results and discussion

Melting / freezing point
Melting / freezing pt.:
> 380 °C

Applicant's summary and conclusion