Residues, copper speiss acid leaching

Auto flammability

Administrative data

Endpoint:

auto-flammability

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

2010

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP compliant, guideline test. Available as an unpublished report. Reliable without restriction.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Materials and methods

Test guideline

Qualifier:

equivalent or similar to guideline

Guideline:

other: Method N.4 of the UN Transport of Dengerous Goods, Manual of Tests and Criteria, fourth revised edition, 2003.

Deviations:

yes

Remarks:

Due to limited volume of test item available a modified method was used.

Principles of method if other than guideline:

Temperature of test item aliquot heated in oven. Temperature of over and centre of test item constantly monitored with thermocouples for signs of self heating.

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

Refinable No 5.2: Speiss leaching residue

IUPAC Name:

Refinable No 5.2: Speiss leaching residue

Details on test material:

- Name of test material (as cited in study report): Refinable No 5.2: Speiss leaching residue
- Physical state: dark grey solid
- Lot/batch number: 151944
- Storage condition of test material: Room temperature in the dark

Results and discussion

Auto-ignition temperature (liquids / gases)

Auto-ignition temperature:

265 °C

Atm. press.:

101.3 kPa

Remarks on result:

other: Standard pressure assumed.

Relative self-ignition temperature (solids)

Relative self-ignition temperature:

265 °C

Remarks on result:

other: Standard pressure assumed.

Remarks:

at atm. press. of 101.3 kPa

Applicant's summary and conclusion

Conclusions:

The substance was heated up to 400°C. There were no signs of self-ignition or self-heating when the test item was held at 140°C for 24 hours. When the test item was heated between 140 and 400°C self-heating occured at 265°C.

Executive summary:

In a GLP-compliant, guideline test the substance was heated up to 400°C. There were no signs of self-ignition or self-heating when the test item was held at 140°C for 24 hours. When the test item was heated between 140 and 400°C self-heating occured at 265°C.