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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other: Method based on A1 and OECD 102, not GLP, substance information available (as well as purity)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Test guidelineopen allclose all
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
no
Type of method:
thermal analysis
Remarks:
DSC/TGA

Test material

Constituent 1
Chemical structure
Reference substance name:
Reaction mass of ammonium 4-amino-3-nitrobenzenesulfonate and sodium 4-amino-3-nitrobenzenesulfonate
EC Number:
700-384-6
Cas Number:
82324-60-5
Molecular formula:
C6 H5 N2 O5 S. H4N C6 H5 N2 O5 S. Na
IUPAC Name:
Reaction mass of ammonium 4-amino-3-nitrobenzenesulfonate and sodium 4-amino-3-nitrobenzenesulfonate
Constituent 2
Reference substance name:
617-317-0
EC Number:
617-317-0
IUPAC Name:
617-317-0
Details on test material:
- Name of test material (as cited in study report): ONPSA, O-nitroaniline-P-sulphonic acid, mixed ammonium/sodium salt, TKP 50141
- Substance type: Organic
- Physical state: Solid (powder)
- Analytical purity: 100%
- Lot/batch No.: 75/7363
- Expiration date of the lot/batch: June 01st, 2019

Results and discussion

Melting / freezing point
Decomposition:
yes
Decomp. temp.:
240 °C

Any other information on results incl. tables

No melting point was found.

The evaporation of the solvents/water is up to 210°C.

The evaporation and decomposition start at 240°C.

The evaluation corresponds to the average value of at least 2 measures of the same lot.

Applicant's summary and conclusion