Registration Dossier

Administrative data

Endpoint:
relative self-ignition temperature (solids)
Type of information:
read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Study period:
2016-11-23 to 2017-02-08
Reliability:
1 (reliable without restriction)
Justification for type of information:
The test data is read across from a substance in the same category, with a lower molecular weight. For further justification of the read-across approach, please see justification attached.
Cross-reference
Reason / purpose:
read-across: supporting information

Data source

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

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
other: UN Recommendations on the TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria, Rev. 6 (2015)
Deviations:
no
Qualifier:
according to
Guideline:
other: UN-Model Regulations, Rev. 19 (2015) VDI 2263 Sheet 1 Grewer oven (1990)
Deviations:
no
GLP compliance:
yes (incl. certificate)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
other: solid
Details on test material:
Batch No.: 1323132
Appearance:
Brownish solid
Content:
40.8 % Activity (as solids) 10.7 % (Sodium chloride) The substance is a UVCB, purity is equal to activity as solids
Certificate of analysis:
Certificate of Analysis from AkzoNobel Surface, Chemistry AB, 444 85 Stenungsund, Sweden,dated 2016-10-26
Storage conditions: Ambient temperature, dark and dry
Production date: 2015-08-12
Expiry date: 2017-08-11

Results and discussion

Relative self-ignition temperature (solids)
Relative self-ignition temperature:
110 °C

Any other information on results incl. tables

Table 1 summarizes the results of the Grewer oven experiment

Table1: Results of the screening test for self-ignition in the Gewer oven

Experiment

Onset self-
ignition / °C

Maximum temperature / °C

Remarks

Pure test item

Approx.110

275

Figure 4,Figure 5

Test item in mixture
with Kieselguhr (1:1)

Approx. 110

260(first peak)
445
(second peak)

Applicant's summary and conclusion

Conclusions:
The pure test item Ampholak 7CX/C indicated self-ignition at atmospheric pressure starting at a temperature of 110 °C.

Due to the fact that the onset temperature in the Grewer oven is below the threshold of 220 °C (110 °C + safety margin of 80 K), the test item cannot be
excluded from classification as self-heating substance. For a detailed classification further tests according to UN Test N.4 are necessary.
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 cannot be excluded from classification 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 cannot be excluded from classification as self-heating substance according to GHS/CLP
Regulation EC 1272/2008 Annex 1: 2.11, respectively 
Executive summary:

The pure test item Ampholak 7CX/C indicated self-ignition at atmospheric pressure starting at a temperature of 110 °C. Due to the fact that the onset temperature in the Grewer oven is below the threshold of 220 °C (110 °C +safety margin of 80 K), the test item cannot be excluded from classification as self-heating substance. For a detailed classification further tests according to UN Test N.4 are necessary.

On the basis of the results of the tests on theself-ignition in theGrewer oventhe test item is classified as follows:

UN Transport Regulation:The test item cannot be excluded from classification 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 cannot be excluded from classification as self-heating substance according to GHS/CLP Regulation EC 1272/2008 Annex 1: 2.11, respectively