pymetrozine (ISO); (E)-4,5-dihydro-6-methyl-4-(3-pyridylmethyleneamino)-1,2,4-triazin-3(2H)-one

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

30 Jun 1993

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.17 (Oxidising Properties (Solids))

Deviations:

no

GLP compliance:

yes

Contact with:

powdered cellulose

Key result

Sample tested:

test mixture as specified

Remarks:

30:70 sample-to-cellulose ratio

Parameter:

maximum burning rate

Result:

2.8 mm/s

Remarks on result:

other: steady burning with flame throughout the whole mass

Remarks:

in a run of six tests

Key result

Sample tested:

test mixture as specified

Remarks:

40:60 sample-to-cellulose ratio

Parameter:

maximum burning rate

Result:

2.9 mm/s

Remarks on result:

other: steady burning with flame throughout the whole mass

Remarks:

in a run of six tests

Key result

Sample tested:

1:1 sample-to-cellulose ratio

Parameter:

maximum burning rate

Result:

2.7 mm/s

Remarks on result:

other: steady burning with flame throughout the whole mass

Remarks:

in a run of six tests

Sample tested:

reference mixture as specified

Remarks:

barium nitrate/cellulose 60:40

Parameter:

maximum burning rate

Result:

3.6 mm/s

Remarks on result:

other: in a run of six tests

Initial test:

Mixture (%)		Burning rate * (mm/s)	Reaction
Test substance	Cellulose
20	80	2.9	Steady burnings with flame throughout the whole mass
40	60	3.4
60	40	3.0
80	20	2.3

* only one test

 

Main test:

Mixture (%)		Max. burning rate ** (mm/s)	Reaction
Test substance	Cellulose
30	70	2.8	Steady burnings with flame throughout the whole mass
40	60	2.9
50	50	2.7

**Max. burning rate: mixture with 40% of product:

(**max. burning rate test mixture) / (**max. burning rate reference mixture) = (2.9 mm/s) / (3.6 mm/s) = 0.8

** in a run of six tests

Interpretation of results:

GHS criteria not met

Conclusions:

The maximum burning rate of the test substance was not higher or equal to the maximum burning rate of the reference mixture of cellulose and barium nitrate. The substance is not considered an oxidising substance.

Executive summary:

To determine the oxidizing properties of the substance a study was performed according to EEC A.17 and in compliance with GLP. In this study the maximum burning rate of the test substance-to-cellulose ratios 30:70, 40:60 and 50:50 were smaller than the maximum burning rate of the reference mixture of cellulose and barium nitrate. The substance is not considered an oxidising substance.

Description of key information

The max. burning rate of the test substance was 2.9 mm/s, which was less than the reference, EEC A.17, Schürch 1993

Key value for chemical safety assessment

Oxidising properties:

non oxidising

Justification for classification or non-classification

Based on the available information, classification on oxidising properties is not warranted in accordance with EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation No. (EC) 1272/2008.