Reaction products of diazotised 2-amino-4-nitrophenol, subsequently coupled with 7-Anilino-4-hydroxy-2-naphthalenesulfonic acid, further mixed with Chromium, [3-(hydroxy-κO)-4-[2-[2-(hydroxy-κO)-1-naphthalenyl]diazenyl-κN1]-7-nitro-1-naphthalenesulfonato(3-)]-, sodium salts

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Administrative data

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

10/15/2018 – 10/16/2018

Reliability:

1 (reliable without restriction)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

equivalent or similar to guideline

Guideline:

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

Test guideline 2

Qualifier:

according to guideline

Guideline:

other: UN Manual of Tests and Criteria: Test N.4

Principles of method if other than guideline:

Test method for self-heating substances.

GLP compliance:

no

Test material

Test material information

Constituent 1

Test material form:

solid: particulate/powder

Results and discussion

Relative self-ignition temperature (solids)

Key result

Remarks on result:

preliminary test

Remarks:

With the given test conditions at about 190 °C (onset-temperature) the beginning of an exothermic peak was visible.

Applicant's summary and conclusion

Conclusions:

Based on the result of this screening test it can´t be excluded that the sample will fulfil the criterion of the transport class 4.2 “self heating substances. Thus, further tests are required for a final assessment. According to the UN “Transport of Dangerous Goods, Manual of tests & Criteria”, Annex 6, point 5.2.2, the classification procedure for self-heating substances need not be applied if the result of a suitable screening test (e.g. Grewer-oven, VDI 2263) shows an onset temperature (exothermic reaction) >220 °C.