Chlorothalonil

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

3 May 1994 to 15 Jul 1994

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Version / remarks:

part 1.6.1

GLP compliance:

yes

Key result

Test procedure:

burning rate test: preliminary screening test

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

Since the powder did not ignite, the hot flame was applied for the maximum of 2 minutes. The flame did not propagate beyond the end of the gas flame. The sample area exposed to the flame was observed to melt, smoke, and leave a black char residue. After 4 minutes, no further propagation was observed beyond the flame exposed area. A second duplicate sample produced the same results described above. According to the EEC Method A.10, part 1.6.1, "If the substance does not ignite and propagate combustion, either by burning with flame or smouldering along 200 mm of the powder train within the 4 minute period, then the substance should not be considered as highly flammable and no further testing is required". The duplicate analysis described above produced results that indicated no further testing was required.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

(i) The test substance did not propagate combustion.
(ii) The test substance is not classified as highly flammable in terms of its burning characteristics.

Executive summary:

An assessment was carried out in accordance with EC Method A.10 and in compliance with GLP.

i) The test substance did not propagate combustion.

(ii) The test substance is not classified as highly flammable in terms of its burning characteristics.

Description of key information

Negative test results were obtained in a flammability study as the sustance did not propagate combustion, the substance is not classified as highly flammable in terms of its burning characteristics, Gallacher 1994.

As the substance is known to be stable in contact with air at room temperature for prolonged periods of time and is soluble in water to form a stable mixture no studies are needed with respect to "pyropholic solid features" and "Substance/ mixtures with in contact with water emits flammable gases", respectively.  Also no study is needed to determine self heating characteristics as there is no evidence of self heating properties for this substance up to 400 °C.

Key value for chemical safety assessment

Flammability:

not classified

Justification for classification or non-classification

Based on the available information, the test substance is not classified as flammable solid, self heating substance, pyrophoric solid or substance which in contact with water emits flammable gases in accordance with EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation No. (EC) 1272/2008.