4-chlorobenzonitrile

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

May 1997

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study without detailed documentation

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Principles of method if other than guideline:

The test methods are described in another document. This does not impair the conclusion of the test results.
The principles of the test methods including their deviations to the guideline are described in detail in the field "any other information on materials and methods".

GLP compliance:

not specified

Key result

Test procedure:

burning time (test type not further specified)

Remarks:

or specified in description of method

Remarks on result:

substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period

1. 4 -Chlorobenzonitrile could not be ignited by the 1000 °C hot platin wire, which was dipped for 5 seconds into the dried substance. (“Bewertungszahl” BWZ 1).

2. 4 -Chlorobenzonitrile could not be ignited by an open gas flame held onto the substance for approx. 10-15 seconds.(“Bewertungszahl” BWZ 1).

3. 4 -Chlorobenzonitrile could not be ignited when put into a red heated iron bowl for 60 seconds. In a mixture with potassium nitrate also no reaction could be observed ("Bewertungszahl" BWZ 1).

Interpretation of results:

GHS criteria not met

Conclusions:

4-Chlorobenzonitrile could not be ignited by the 1000 °C hot platin wire, which was dipped for 5 seconds into the dried substance, by an open gas flame held onto the substance for approx. 10-15 seconds or when put into a red heated iron bowl for 60 seconds.

Executive summary:

Three tests were conducted according to guidelines similar to guideline A.10.

4-Chlorobenzonitrile could not be ignited by the 1000 °C hot platin wire, which was dipped for 5 seconds into the dried substance, by an open gas flame held onto the substance for approx. 10-15 seconds or when put into a red heated iron bowl for 60 seconds. Therefore it is concluded that 4 -Chlorobenzonitrile is non flammable under the conditions of the test.

Description of key information

4-Chlorobenzonitrile could not be ignited by the 1000 °C hot platin wire, which was dipped for 5 seconds into the dried substance, by an open gas flame held onto the substance for approx. 10-15 seconds or when put into a red heated iron bowl for 60 seconds.

Key value for chemical safety assessment

Flammability:

non flammable

Additional information

Three tests were conducted according to guidelines similar to guideline A.10.

4-Chlorobenzonitrile could not be ignited by the 1000 °C hot platin wire, which was dipped for 5 seconds into the dried substance, by an open gas flame held onto the substance for approx. 10-15 seconds or when put into a red heated iron bowl for 60 seconds. Therefore it is concluded that 4 -Chlorobenzonitrile is non flammable under the conditions of the test.

Justification for classification or non-classification

Due to the test results 4-Chlorobenzonitrile can be excluded from the hazard class "flammable solids" and does not have to be classsified.