Butyl 2-[[3-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-hydroxy-1-naphthyl]azo]benzoate

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1998

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Test method similar to VDI 2263 sheet 1 (national standard)

Qualifier:

equivalent or similar to guideline

Guideline:

other: VDI 2263 sheet 1

Principles of method if other than guideline:

Determination of the combustion class number ("Brennzahl" BZ) and burning rate.

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks on result:

other: No propagation -- test material caught fire briefly but extinguished rapidly

The heap of powder showed a spread of an open fire. The combustion class number BZ 5 was assigned.

During the determination of the burning rate, the flame extinguished before the end of the burning distance of 100 mm.

Therefore, the substance is not an easily flammable solid.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The test substance is not a highly flammable solid according to UN class 4.1.

Executive summary:

The flammability of the test substance was evaluated by determination of the combustion class number ("Brennzahl" BZ 5). During the determination of the burning rate, the flame extinguished before reaching the end of the test strip. The test substance is therefore not a highly flammable solid.

Key value for chemical safety assessment

Flammability:

not classified