mancozeb (ISO); manganese ethylenebis(dithiocarbamate) (polymeric) complex with zinc salt  

Oxidising properties

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

oxidising gases

Data waiving:

study technically not feasible

Justification for data waiving:

the study does not need to be conducted because the substance is a solid

Reference 2

Endpoint:

oxidising liquids

Data waiving:

study technically not feasible

Justification for data waiving:

the study does not need to be conducted because the substance is a solid

Reference 3

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

from 2005-01-17 to 2005-02-01

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 (incl. QA statement)

Contact with:

powdered cellulose

Key result

Sample tested:

test mixture as specified

Parameter:

preliminary test

Result:

> 960 s

Remarks on result:

slow smouldering

Test material	Burning time	Remarks
Test sample mixture: 2/1 w/w Test sample/Cellulose	> 960 s (16 min) *)	Smoulder with smoke
Reference mixture: 60/40 w/w Ba(NO3)2/Cellulose	52 s **)	Sparkling, 15 cm high yellow-green flame

*) The burning of the Test sample mixture proceeded slowly by smoulder upon discoloration from yellow to black with brown spots and smoke formation. After 17 min the pile was turned from originally yellow to black with brown spots while smoking was hardly visible anymore. On breaking up 10 minutes later the inside of the cone was brown and appeared (still) smouldering and some glowing was visible.

A repeat of the test resulted in similar phenomena: the burning of the pile took 19 min and smoulder inside was still visible 10 min later.

**) Three replicates, individual values 53, 51 and 52 s; average value 52 s.

The substance is to be considered as oxidizing if the reaction is vigorous in comparison with the reference mixture of barium nitrate and cellulose and no further testing is then required. The test substance shows only a slowly progressing smoulder in the Preliminary test (burning behaviour of the cone of test mixtures). This observation, together with the theoretical consideration, demonstrates well that the test substance has no oxidizing properties. For these reasons it was decided that the full Train test would be meaningless and had not to be carried out.

Interpretation of results:

GHS criteria not met

Conclusions:

The test item has no oxidizing properties.

Executive summary:

A study was conducted to determine the oxidizing properties of the test item according to EU Method A.17. The dried test substance was thoroughly mixed with the dried cellulose in the proportion 2 of test substance to 1 of cellulose by weight. As reference mixture Ba(NO3)2 was mixed with the dried cellulose in the proportion 3 to 2. The test item does not sustain a combustion reaction in a relevant mixture with cellulose at a burning rate near or higher than that of the reference mixture. Therefore, the test item has no oxidizing properties.

Description of key information

The test item has not to be classified as oxidising solid, oxidising liquid or oxidising gas.

Key value for chemical safety assessment

Oxidising properties:

non oxidising

Additional information

Oxidising gases

The test item is a solid at ambient conditions. This hazard class is only applicable for gases. Thus, the substance was not considered for classification as oxidising gases.

 

Oxidising liquids

The test item is a solid at ambient conditions. This hazard class is only applicable for gases. Thus, the substance was not considered for classification as oxidising liquids.

 

Oxidising solids

A study was conducted to determine the oxidizing properties of the test item according to EU Method A.17. The dried test substance was thoroughly mixed with the dried cellulose in the proportion 2 of test substance to 1 of cellulose by weight. As reference mixture Ba(NO3)2 was mixed with the dried cellulose in the proportion 3 to 2. The test item does not sustain a combustion reaction in a relevant mixture with cellulose at a burning rate near or higher than that of the reference mixture. Therefore, the test item has no oxidizing properties.

Justification for classification or non-classification

Classification, Labelling, and Packaging Regulation (EC) No 1272/2008

Based on the chemical structure and taking into account the provisions laid down in Regulation (EC) No 1272/2008 (CLP), as amended for the fifteenth time in Regulation (EU) 2020/1182, and UN GHS Rev 8 (2019) the substance is not considered to be classified for oxidising properties.