Reaction product of acid red 143 (free acid) or the respective sodium salt (e.g Lansyn red F-5B) (UVCB) with Tetrabutylammonium bromide (CAS nr.: 1643-19-2) resulting in a mixture of AR143-(TBN)2 (Main component), AR143-(TBN), AR143-(TBN)3, AR143-(TBN) without alkyl tail, AR143-(TBN)2 without alkyl tail.Chemical name main component AR143-(TBN)2:di-(tetra-n-butylammonium) salt of 1-benzoyl-4-[4'-(1'',1''-dimethylpropyl)-phenoxy]-6-phenylamino-2,7-dioxo-2,7-dihydro-3H-naphtho(1,2,3-de)quinolin, disulfonic acid

Auto flammability

Administrative data

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

19/06/2008 - 20/06/2008

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2008

Report date:

2008

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.16 (Relative Self-Ignition Temperature for Solids)

Version / remarks:

The purpose of this study was the determination of the relative self-ignition temperature of the test item according to the consolidated version of Council Directive 671548lEEC Annex V (Council Directive 92169/EEC),
Part A: Methods for the determination of physico-chemical properties.
A.16. Auto-flammability (solids - determination of relative self-ignition temperature)

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

-

EC Number:

473-100-9

EC Name:

-

Details on test material:

- Sample-No: AR-143-MTP
- Empirical formula: C78H66N2010P2S2
- Molecular weight: 1317.48 glmol
- Purity: > 99 % [a/a] Prima 1
- Physical state: Red solid
- Storage conditions: ambient temperature

Results and discussion

Relative self-ignition temperature (solids)

Key result

Relative self-ignition temperature:

>= 395 °C

Remarks on result:

other: The relative self-ignition temperature is >395"C, according to the testing guideline for auto- flammability in the sense of the consolidated version of CD 671548lEEC Annex V (CD 92/691EEC), Method A.16. But no sharp temperature increase was observed.

Applicant's summary and conclusion

Conclusions:

The relative self-ignition temperature is >395"C, according to the testing guideline for auto- flammability (solids - determination of relative self-ignition temperature) in the sense of the consolidated version of Council Directive 671548lEEC Annex V (Council Directive 92/691EEC), Method A.16. But no sharp temperature increase was observed.

Executive summary:

The test item temperature exceeded the oven temperature at approximately 300 °C. From this temperature on the temperature of the test item remained permanently slightly (temperature difference: approx. 2 K) above the oven temperature and led to a maximum temperature of 407 °C. No sharp temperature increase was observed.

The temperature of the test item exceeded 400 °C at a corresponding oven temperature of 395 °C.