Reaction mass of potassium difluoro{[2,2,4,5-tetrafluoro-5-(trifluoromethoxy)-1,3-dioxolan-4-yl]oxy}acetate with potassiumfluoride and potassium carbonate

Flammability

Administrative data

Endpoint:

flammable solids

Type of information:

read-across from supporting substance (structural analogue or surrogate)

Adequacy of study:

supporting study

Study period:

From 19 Nov. 2009 to 17 Feb. 2010

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The experimental study on the supporting substance is guideline-conform under GLP without deviations.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Report date:

2010

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

cC6O4 ammonium salt

IUPAC Name:

cC6O4 ammonium salt

Constituent 2

Reference substance name:

Acetic acid, 2,2-difluoro-2-[[2,2,4,5- tetrafluoro-5-(trifluoromethoxy)-1,3- dioxolan-4-yl]oxy]-, ammonium salt (1:1)

IUPAC Name:

Acetic acid, 2,2-difluoro-2-[[2,2,4,5- tetrafluoro-5-(trifluoromethoxy)-1,3- dioxolan-4-yl]oxy]-, ammonium salt (1:1)

Constituent 3

Reference substance name:

Reaction mass of ammonium difluoro {[(4S,5R)-2,2,4,5-tetrafluoro-5-(trifluoromethoxy)-1,3-dioxolan-4-yl]oxy}acetate, ammonium difluoro {[(4R,5S)-2,2,4,5-tetrafluoro-5-(trifluoromethoxy)-1,3-dioxolan-4-yl]oxy}acetate, ammonium difluoro {[(4S,5S)-2,2,4,5-tetrafluoro-5-(trifluoromethoxy)-1,3-dioxolan-4-yl]oxy}acetate and ammonium difluoro {[(4R,5R)-2,2,4,5-tetrafluoro-5-(trifluoromethoxy)-1,3-dioxolan-4-yl]oxy}acetate

EC Number:

682-238-0

Cas Number:

1190931-27-1

Molecular formula:

C6H4F9NO6

IUPAC Name:

Reaction mass of ammonium difluoro {[(4S,5R)-2,2,4,5-tetrafluoro-5-(trifluoromethoxy)-1,3-dioxolan-4-yl]oxy}acetate, ammonium difluoro {[(4R,5S)-2,2,4,5-tetrafluoro-5-(trifluoromethoxy)-1,3-dioxolan-4-yl]oxy}acetate, ammonium difluoro {[(4S,5S)-2,2,4,5-tetrafluoro-5-(trifluoromethoxy)-1,3-dioxolan-4-yl]oxy}acetate and ammonium difluoro {[(4R,5R)-2,2,4,5-tetrafluoro-5-(trifluoromethoxy)-1,3-dioxolan-4-yl]oxy}acetate

Details on test material:

- Name of test material (as cited in study report): cC6O4
- Molecular formula (if other than submission substance): C6H4F9NO6
- Molecular weight (if other than submission substance): 357
- Smiles notation (if other than submission substance): [NH4+].FC1(F)OC(F)(OC(F)(F)C([O-])=O)C(F)(OC(F)(F)F)O1
- InChl (if other than submission substance): no data
- Structural formula attached as image file (if other than submission substance): see Fig.1 (C6O4 Structural formula)
- Substance type: pure substance
- Physical state: solid
- Analytical purity: >98%
- Impurities (identity and concentrations): NH4F=0.02% (w/w), NH4Cl=0.25% (w/w), H2O=0.2% (w/w), fluorinated organic impurities= 3% mol/total mol of organic phase
- Composition of test material, percentage of components: no data
- Isomers composition: not reported
- Purity test date: not reported
- Lot/batch No.: 156/17
- Expiration date of the lot/batch: 31 December 2020
- Stability under test conditions: not reported
- Storage condition of test material: at room temperature at about 20 °C

Results and discussion

Flammable solids

Test procedure:

burning time (test type not further specified)

Remarks:

or specified in description of method (migrated information)

Remarks on result:

other: cC6O4 ammonium salt could not be ignited during the preliminary test (contact time of about two minutes). Therefore, no main test was performed.

Any other information on results incl. tables

cC6O4 ammonium salt could not be ignited during the preliminary test (contact time of about two minutes). Therefore, no main test was performed.

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Conclusions:

In contact with the ignition source, cC6O4 ammonium salt melted slowly and evolved some white fume. A waxy esidue remained.
cC6O4 could not be ignited with a flame during the preliminary test (contact time of about 2 minutes). Therefore, no main test was performed.
Based on the results of this study, cC6O4 ammonium salt would be not considered "highly flammable" according to the criteria of the guideline.

Considering the similarity of chemical structure between F- Diox potassium salt and cC6O4 ammonium salt, it can be concluded that F- Diox potassium salt has the same property. Therefore it can be stated that F- Diox potassium salt is not flammable.

Executive summary:

In order to evaluate the potential for flammability of F- Diox potassium salt it was deemed appropriate using the Read Across approach based on the experimental study performed on cC6O4 ammonium salt by virtue of similarity of chemical structure between F- Diox potassium salt and cC6O4 ammonium salt.

F-Diox potassium salt and cC6O4 ammonium salt are two salts of the same carboxylic acid, they differ only for the cationic part (K+ in F-Diox potassium salt and NH4+ in cC6O4 ammonium salt). The ammonium cation behaves in a similar manner to the group 1 metal ions, the structure of ammonium salt resembles that of potassium because of their relative size.

The determination of the flammability of cC6O4 ammonium salt was performed in accordance with the EEC Directive 92/69, EEC Publication No. L383, Decembed and Council regulation (EC) No. 440/2008, 30 May 2008, Part A, Method for the determination of physico-chimical properties, A. 10 "Flammability (solids)".

In contact with the ignition source, cC6O4 ammonium salt melted slowly and evolved some white fume. A waxy esidue remained. cC6O4 ammonium salt could not be ignited with a flame during the preliminary test (contact time of about 2 minutes). Therefore, no main test was performed. Based on the results of this study, cC6O4 ammonium salt would be not considered "highly flammable" according to the criteria of the guideline.

Considering that F-Diox potassium salt and cC6O4 ammonium salt differ only for the cationic part of the molecule, and considering that ions K+ and NH4 + do not affect flammable properties of the substance since these ions do not have flammable properties, it can be concluded that F- Diox potassium salt has the same property for flammability than cC6O4 ammonium salt.

Therefore it can be stated that F- Diox potassium salt is not flammable.