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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
relative self-ignition temperature (solids)
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
Remarks:
Directive VDI 2263, Sheet 1

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Directive VDI 2263, Part 1

Test material

Constituent 1
Chemical structure
Reference substance name:
Trisodium 5,5'-[(2-sulphonato-1,4-phenylene)bis(azo)]bis(salicylate)
EC Number:
276-501-5
EC Name:
Trisodium 5,5'-[(2-sulphonato-1,4-phenylene)bis(azo)]bis(salicylate)
Cas Number:
72230-95-6
Molecular formula:
C20H14N4O9S.3Na
IUPAC Name:
trisodium 3,3'-[(2-sulfonato-1,4-phenylene)didiazene-2,1-diyl]bis(6-hydroxybenzoate)

Results and discussion

Relative self-ignition temperature (solids)
Key result
Relative self-ignition temperature:
>= 240 °C
Remarks on result:
other: pure test substance

Any other information on results incl. tables

In the screening test according to Grewer with the pure test substance an endothermal effect was observed in the temperature range 80 - 240°C, followed by an exothermal effect starting at 240°C. The heat production led to a maximum test substance temperature of more than 400°C.

In the screening test with the kieselgur mixture (1:1) only a small exothermal effect was recorded starting at 240°C.

Applicant's summary and conclusion

Conclusions:
The test item has not to be classified as self-heating substance according to Regulation (EC) No 1272/2008, Annex I, 2.11.4