Sodium iodate

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

14 December 2017 to 31 January 2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

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

Assay 1: The test material melted. Neither propagation nor ignition was observed.

Assay 2: The test material melted. Neither propagation nor ignition was observed.

Taking into account the results obtained during the preliminary test, no main test was performed.

Interpretation of results:

other: Not classified in accordance with EU criteria

Conclusions:

The test material was not classified as a flammable solid of Division 4.1 and thus was not assigned to any packing group, under the experimental conditions used.

Executive summary:

The test method for readily flammable solids was conducted in accordance with the standardised guideline UN Test N.1 under GLP conditions.

In the preliminary test, the test material melted. Neither propagation nor ignition was observed. The results of the preliminary test obviated the need for the main test.

The test material was therefore not classified as a flammable solid of Division 4.1 and thus was not assigned to any packing group, under the experimental conditions used.

Reference 2

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured with water or washed with water

the study does not need to be conducted because the substance is known to be soluble in water to form a stable mixture

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
In accordance with section 1.5 of REACH Annex XI, the study does not need to be performed as based on chemical structure water reactivity is not to be expected. In addition, the substance is known to be soluble in water to form a stable mixture.

Reference 3

Endpoint:

pyrophoric solids

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
In accordance with section 1.5 of REACH Annex XI, the study does not need to be performed as based on chemical structure pyrophoric properties are not to be expected. In addition, in the daily use and handling of the substance during which continuous exposure to air can occur, no spontaneous ignition is observed.

Description of key information

Flammability (solids)

The test material was not classified as a flammable solid of Division 4.1 and thus was not assigned to any packing group, under the experimental conditions used.

Key value for chemical safety assessment

Flammability:

not classified

Additional information

Flammability (solids)

The test method for readily flammable solids was conducted in accordance with the standardised guideline UN Test N.1 under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

In the preliminary test, the test material melted. Neither propagation nor ignition was observed. The results of the preliminary test obviated the need for the main test.

The test material was therefore not classified as a flammable solid of Division 4.1 and thus was not assigned to any packing group, under the experimental conditions used.

Pyrophoricity

In accordance with point 1 of Annex XI, it is considered justified to omit the testing for pyrophoric properties. Testing does not appear scientifically necessary as experience in use and experience of handling the substance indicates that it does not possess pyrophoric properties.

Flammability in contact with water

In accordance with section 1.5 of REACH Annex XI, the study does not need to be performed as based on chemical structure water reactivity is not to be expected. In addition, the substance is known to be soluble in water to form a stable mixture.

Justification for classification or non-classification

In accordance with the criteria for classification as defined in Annex I, Regulation (EC) No 1272/2008, the substance does not require classification with respect to flammability.