[4-[4,4'-bis(dimethylamino)benzhydrylidene]cyclohexa-2,5-dien-1-ylidene]dimethylammonium chloride

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammability, other

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Justification for type of information:

Experimental result performed using standard methods of analysis

Qualifier:

according to guideline

Guideline:

other: CPSL-PTM-04 based on international test method VDI Guidelines 2263

Principles of method if other than guideline:

Brief description of the test
If the product sustains combustion ( C.I. ≥4), an additional test on ready combustibility (burning rate) regarding transport regulations (UN Test No 1) as well as European Chemical Directive 92/69/EEC is performed. A standardized pile is ignited at one end and the burning rate over a defineddistance is measured.

In preliminary test at first, the burning rate over a distance of 20cm is measured. If the pile does not ignite after 2 minutes of contact with the heat source or if the pile burns over a distance of 20 cm in more than 2 minutes, the product need not be classified as a " readily combustible solid" [Class 4.1] of the transport regulation

Similarly the product need not be labeled as " highly flammable solid" [ Risk Phrase: R11] if the pile does not ignite after 2 minutes of contact with heat source or if the pile burns over a distance of 20 cm in more than 4 minutes. In all other cases the main test is to be performed wherein the burning rate is measured over a distance of 10 cm after a preliminary burning of 8 cm. The test has to be repeated five times. The time limit to exclude a classification as " readily combustible solid" [Class 4.1] according to transport regulation. and as " highly flammable" [Risk Phrase R11] according to chemical law is 45 seconds for a distance of 10 cm.

GLP compliance:

not specified

Specific details on test material used for the study:

- Name of test material: Gentian violet
- IUPAC name: N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride
- Molecular formula: C25H30ClN3
- Molecular weight: 407.986 g/mole
- Smiles : C(\c1ccc(N(C)C)cc1)(c1ccc(N(C)C)cc1)=C1\C=C\C(=[N+](/C)C)C=C1.[ClH-]
- Inchl: 1S/C25H30N3.ClH/c1-26(2)22-13-7-19(8-14-22)25(20-9-15-23(16-10-20)27(3)4)21-11-17-24(18-12-21)28(5)6;/h7-18H,1-6H3;1H/q+1;/p-1
- Substance type: Organic
- Physical state: Solid green powder

Key result

Test procedure:

ignition time on contact with air

Remarks:

Ignition on contact with air refers to given chemical is Pyrophoric solids.

Remarks on result:

other: As Combustibility Index both at ambient and at 100°C is 1; Burning rate test not required to be done

Interpretation of results:

Category 1 (pyrophoric solids) based on GHS criteria

Conclusions:

Thus it is observed from the experimental study, the Combustibility Index for the chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene} cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride at ambient temperature = 1 and at 100°C = 1.
Hence  it can be concluded that the chemical N-(4-{bis[4- (dimethyl amino) phenyl]methylene}cyclohexa-2,5-dien-1-ylidene) -N-methylmethanaminium chloride was considered as non-flammable (does not ignite) for chemical safety assessment.

Executive summary:

Thus it is observed from the experimental study, the Combustibility Index for the chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene} cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride at ambient temperature = 1 and at 100°C = 1.

Hence  it can be concluded that the chemical N-(4-{bis[4- (dimethyl amino) phenyl]methylene}cyclohexa-2,5-dien-1-ylidene) -N-methylmethanaminium chloride was considered as non-flammable (does not ignite) for chemical safety assessment.

Description of key information

Thus it is observed from the experimental study, the Combustibility Index for the chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene} cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride at ambient temperature = 1 and at 100°C = 1.

Hence  it can be concluded that the chemical N-(4-{bis[4- (dimethyl amino) phenyl]methylene}cyclohexa-2,5-dien-1-ylidene) -N-methylmethanaminium chloride was considered as non-flammable (does not ignite) for chemical safety assessment.

Key value for chemical safety assessment

Flammability:

not classified

Additional information

Thus it is observed from the experimental study, the Combustibility Index for the chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene} cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride at ambient temperature = 1 and at 100°C = 1.

Hence  it can be concluded that the chemical N-(4-{bis[4- (dimethyl amino) phenyl]methylene}cyclohexa-2,5-dien-1-ylidene) -N-methylmethanaminium chloride was considered as non-flammable (does not ignite) for chemical safety assessment.

Justification for classification or non-classification

Thus it is observed from the experimental study, the Combustibility Index for the chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene} cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride at ambient temperature = 1 and at 100°C = 1.

Hence  it can be concluded that the chemical N-(4-{bis[4- (dimethyl amino) phenyl]methylene}cyclohexa-2,5-dien-1-ylidene) -N-methylmethanaminium chloride was considered as non-flammable (does not ignite) for chemical safety assessment.