Hydrogen (glycinato-N,O)[sulphato(2-)-O,O']ferrate(1-)

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2020-04-24

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:

2008

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: Recommendations on the TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria, 7“ edition, New York and Geneva, 2019: Class 4, Division 4.1: Readily Combustible Solids, Test N.1

Version / remarks:

2019

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: VDI 2263, sheet 1

Version / remarks:

1990

Deviations:

no

GLP compliance:

no

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

Preliminary Test

The test item did not ignite at room temperature using a flame as ignition source being applied for at least 2 minutes.

Main Test

In the preliminary test the test item could not be ignited by a flame. Thus, the performance of the main test was not necessary. The test item Zinc bisglycinate could not be ignited applying a flame as ignition source for at least 2 minutes. The test item is classified as follows:

UN Transport Regulation: The product has not to be classified as readily combustible solid in class 4.1 according to the UN Transport Regulation.

GHS (CLP Regulation EC 1272/2008: Annex 1: 2.7): The product has not to be classified as flammable solid according to GHS l CLP Regulation EC 1272/2008 Annex 1: 2.7.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

Not classified as flammable according to Regulation (EU) No. 1272/2008 (CLP) and the Globally Harmonized System for Classification and Labelling of Chemicals (GHS).

Executive summary:

The flammability of Zinc bisglycinate was determined in a test conducted accoding to EU-Method A 10.

In the preliminary test the test item could not be ignited by a flame. Thus, the performance of the main test was not necessary. The test item Zinc bisglycinate could not be ignited applying a flame as ignition source for at least 2 minutes.

Thus, the test item is classified as follows:

UN Transport Regulation: The product has not to be classified as readily combustible solid in class 4.1 according to the UN Transport Regulation.

GHS (CLP Regulation EC 1272/2008: Annex 1: 2.7): The product has not to be classified as flammable solid according to GHS l CLP Regulation EC 1272/2008 Annex 1: 2.7.

Description of key information

preliminary test according to EU Method A.10 with the source substance zinc-bisglycinate, no ignition at room temperature using a flame as ignition source being applied for at least 2 minutes, not classified as flammable, read-across

Key value for chemical safety assessment

Flammability:

not classified

Additional information

There are no data regarding flammability for ferrous monoglycinate sulfate, however, a study according to EU Methos A.10 (2008) is available for zinc bisglycinate.

Based on the structural similarity of zinc bisglycinate and ferrous monoglycinate sulfate and based on the assumption that both substances form similar breakdown products, i.e. glycine and either ferrous or zinc ions, the read-across from zinc bisglycinate to ferrous monoglycinate sulfate appears to be justified. Glycine as ons constituent of this chelat-complex is an ubiquitously occurring, proteinogenic amino acid. Amino acids in general are known to be not flammable since they decomposed at higher temperatures (see Lide....). Due to the stöchiometric distribution of the constituents amino acid chelates from metal ions are gernerally considered to be less flammable. Metals on the other hand exhibit a higher flammability than amino acids. Thus, in general the results from a flammability test performed with one amino acid chelate, namely zinc bisglycinate are considered to  be also valid for other amino acid chelates because the amino acid, i.e. the ligand is expected to determine the flammability of the substance.

Justification for classification or non-classification

The flammability of Zinc bisglycinate was determined in a test conducted accoding to EU-Method A 10.

In the preliminary test the test item could not be ignited by a flame. Thus, the performance of the main test was not necessary. The test item Zinc bisglycinate could not be ignited applying a flame as ignition source for at least 2 minutes.

Thus, the test item is classified as follows:

UN Transport Regulation: The product has not to be classified as readily combustible solid in class 4.1 according to the UN Transport Regulation.

GHS (CLP Regulation EC 1272/2008: Annex 1: 2.7): The product has not to be classified as flammable solid according to GHS l CLP Regulation EC 1272/2008 Annex 1: 2.7.

Based on the read-across hypothesis that chelated metal ions exhibit physicochemical properties similar to that of the chelat-ligand, ferrous glycinate sulfate is expected to be non-flammable.