N-(5-chloro-2-methoxyphenyl)-3-hydroxy-4-[[2-methoxy-5-[(phenylamino)carbonyl]phenyl]azo]naphthalene-2-carboxamide

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2001

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Acceptable, well-documented study report which meets basic scientific principles

Principles of method if other than guideline:

Determination of the combustion class number ("Brennzahl")

Test procedure:

burning rate test over 100 mm length

Burning time:

ca. 178 s

When an ignition source was contacted with the sample, spread of an open fire was observed (BZ 5).

The burning time for 100 mm was 178 s (burning rate 0.56 mm/s).

Interpretation of results:

non flammable

Remarks:

Migrated information

Conclusions:

The combustion number of the test item is BZ 5 and the burning rate is 0.56 mm/s. The test item is therefore not a flammable solid class 4.1 according to the transport regulations.

Description of key information

The flammability of the test item was tested by determination of the combustion class number and burning time. The combustion class number of the test item is BZ 5 and the burning time for 100 mm was 178 s (burning rate 0.56 mm/s).

Self-heating of the test item was observed starting from 220 °C (max. temp. ca. 340 °C). The hot storage test at a temperature of 190 °C caused warming of the sample by 9 K within 108 min after temperature equalisation (which took 3.7 h). Afterwards the sample temperature fell back to the oven temperature.

The test item is not flammable in contact with water, and has no pyrophoric properties.

Key value for chemical safety assessment

Flammability:

not classified

Additional information

The test item is therefore not a flammable solid, not flammable in contact with water, and has no pyrophoric properties.

Self-heating of the test item starts at 220 °C. Sufficient stability in hot storage test (1 L wire mesh basket) at 190 °C. No classification according to transport regulations required.

Justification for classification or non-classification

The available data on flammability of the test substance do not meet the criteria for classification according to Regulation (EC) 1272/2008, and are therefore conclusive but not sufficient for classification: The substance is not flammable and not self-heating. Based on experience in handling and use pyrophoricity and flammability on contact with water are not expected.