Reaction mass of Fatty acids, montan-wax and Fatty acids, montan-wax, sodium salts and Montan wax

Auto flammability

Administrative data

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

16 Jul 2010 to 26 Aug 2010

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Guideline study (EU A.16)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Report date:

2010

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

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

Test guideline 2

Qualifier:

according to guideline

Guideline:

other: VDI 2263

Test guideline 3

Qualifier:

according to guideline

Guideline:

other: UN-Test N.4

Test material

Test material information

Constituent 1

Reference substance name:

Montan waxes, type NaV 101

IUPAC Name:

Montan waxes, type NaV 101

Details on test material:

Test Item: Licomont NaV 101

Results and discussion

Relative self-ignition temperature (solids)

Relative self-ignition temperature:

160 °C

Remarks on result:

other: Pressure not given.

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 and for the test item in mixture with Kieselguhr an endothermic process was detected at 100 °C.

The pure test item and the test item in mixture with Kieselguhr indicated an exothermal effect at 160 °C, which lead to a maximum temperature for the pure product of 190 °C and for the mixture with Kieselguhr of about 470 °C. After the measurement the basket of the pure test item is empty. The complete test item flowed out of the basket.

Due to the fact, that the self-ignition temperature in the Grewer-Oven was below the Limit of 220 °C the Bowes-Cameron-Cage Test (UN-Test N.4) had to be performed.

Bowes-Cameron-Cage Test (UN-Test N.4)

The temperature profile of the test using a 100 mm cube sample (Weight in: 468 kg) at an oven temperature of 140 °C is given. The temperature in the centre of the sample reached a maximum temperature of 180 °C after 2.5 h. Subsequently the temperature of the test item drops down again and remained constant at 140 °C for the remaining duration of the test. The test item did not melt. The mass loss over the test amounted to only 1 wt.-%.

Due to the fact, that the maximum temperature in the centre of the sample cube (180 °C) did not exceed the oven temperature by 60 °C (140 °C + 60 °C = 200 °C) the result has to be considered negative.

Due to the negative result in the 100 mm cube sample at an oven temperature of 140 °C no further test had to be performed.

Applicant's summary and conclusion

Conclusions:

The test substance shows self-heating at 160 °C.

Executive summary:

The auto flammability of the test substance was determined in a guideline study (EU A.16; VDI 2263; UN-test N.4). The test substance shows self-heating at 160 °C in the Grewer oven screening. The subsequent UN-Test N.4 (Bowes-Cameron-Cage Test) revealed that the test substance does not need to be classified as a self-heating substance according to Regulation (EC) 1272/2008.