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Diss Factsheets

Physical & Chemical properties

Flammability

Currently viewing:

Administrative data

Endpoint:
self-heating substances / mixtures
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-08-11 - 2018-04-06
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
UN Manual of Tests and Criteria: Test N.4 (Test method for self-heating substances)
Version / remarks:
Rev. 6, 2015
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: VDI 2263, sheet 1, Grewer Oven
Version / remarks:
1990
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Reference substance name:
Acetamide, N-(2,4-dinitrophenyl)-, reaction products with 1-methyl-2,4-dinitrobenzene and sodium sulfide (Na2(Sx)), leuco derivatives
EC Number:
288-896-1
EC Name:
Acetamide, N-(2,4-dinitrophenyl)-, reaction products with 1-methyl-2,4-dinitrobenzene and sodium sulfide (Na2(Sx)), leuco derivatives
Cas Number:
85940-08-5
Molecular formula:
not applicable
IUPAC Name:
Reaction product of N-(2,4-dinitrophenyl)acetamide with 1-methyl-2,4-dinitrobenzene and polysulfide, leuco derivatives
Test material form:
solid: particulate/powder
Details on test material:
Test item: Leuco Sulphur Brown 46
Appearance: Brown powder
CAS No: 85940-08-5
Specific details on test material used for the study:
Reagents: Kieselguhr
Batch No.: TA2082010
Identity and content: Conforms
Certificate of analysis: Certificate of Analysis dated 2016-10-20; Merck KGaA, Frankfurter Straße 250, 64293 Darmstadt
Expiry date: 2021-10-31

Results and discussion

Self-heating substances / mixtures
Key result
Test procedure:
other: Onset temperature in the Grewer oven
Result:
negative outcome (no effect observed)
Remarks on result:
other:

Any other information on results incl. tables

Self-ignition in the Grewer Oven

In the investigation of self-ignition in the Grewer Oven for the pure test item, an endothermic effect was detected in the temperature range of 50 – 110 °C, which may be caused by the drying of the test item. No further thermal effects could be observed up to maximum test temperature of 425 °C. After the measurement a black residue remained in the basket.

For the test item in mixture with Kieselguhr an endothermic effect was detected, in the temperature range of 40 – 70 °C, which may also be caused by the drying of the test item. No further thermal effects could be observed up to maximum test temperature of 425 °C.

Table 1 summarizes the results of the Grewer Oven experiment.

Table 1: Results of the screening test for self-ignition in the Grewer Oven

Experiment

Onset self-
ignition / °C

Maximum temperature / °C

Remarks

Pure test item

---

---

Test item in mixture
with Kieselguhr (1:1)

---

---

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The pure test item Leuco Sulphur Brown 46 indicated no self-heating at atmospheric pressure up to maximum test temperature of 425 °C.

On the basis of the results of the tests on the self-ignition in the Grewer Oven the test item is classified as follows:
UN Transport Regulation: The test item has not to be classified as self-heating substance in class 4, division 4.2 according to the UN Transport Regulation.
GHS / CLP Regulation EC 1272/2008 Annex 1: 2.11: The test item has not to be classified as self-heating substance according to GHS/CLP Regulation EC 1272/2008 Annex 1: 2.11.
Executive summary:

Summary

The pure test item Leuco Sulphur Brown 46 indicated no self-heating at atmospheric pressure up to maximum test temperature of 420 °C.

On the basis of the results of the tests on the self-ignition in the Grewer Oven the test item is classified as follows:

UN Transport Regulation: The test item has not to be classified as self-heating substance in class 4, division 4.2 according to the UN Transport Regulation.

GHS / CLP Regulation EC 1272/2008 Annex 1: 2.11: The test item has not to be classified as self-heating substance according to GHS/CLP Regulation EC 1272/2008 Annex 1: 2.11.