Dimethyl[2-[(2-methyl-1-oxoallyl)oxy]ethyl](3-sulphopropyl)ammonium hydroxide

Flammability

Administrative data

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2016-04-18 - 2016-04-20

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2016

Report date:

2016

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Version / remarks:

Council Regulation (EC) No 440/2008 of 30 May 2008, Method A.10: “Flammability (solids)”

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

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

Version / remarks:

UN Method N1, 2009: “Test method for readily combustible solids”

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

Landesamt für Umwelt, Wasserwirtschaft und Gewerbeaufsicht, Kaiser-Friedrich-Straße 7, 55116 Mainz

Test material

Test material information

Constituent 1

Reference substance name:

Dimethyl[2-[(2-methyl-1-oxoallyl)oxy]ethyl](3-sulphopropyl)ammonium hydroxide

EC Number:

222-860-8

EC Name:

Dimethyl[2-[(2-methyl-1-oxoallyl)oxy]ethyl](3-sulphopropyl)ammonium hydroxide

Cas Number:

3637-26-1

Molecular formula:

C11H21NO5S

IUPAC Name:

dimethyl[2-[(2-methyl-1-oxoallyl)oxy]ethyl](3-sulphopropyl)ammonium hydroxide

Test material form:

solid: particulate/powder

Results and discussion

Flammable solids

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks on result:

not determinable

Remarks:

No propagation of the combustion along 200 mm within 4 minutes occurred.

Applicant's summary and conclusion

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The flammability was determined according to a scientifically valid method, i.e. EU method A.10 under GLP, in a well-documented study, hence, the following result for the test material can be considered as reliable:
No propagation of the combustion along 200 mm within 4 minutes occurred.
The test item N,N-Dimethyl-N-(2-methacryloyloxyethyl)-N-(3-sulfopropyl)-ammonium betaine; (SPE) should be considered as not highly flammable.
No observations were made which might cause doubts concerning the validity of the study outcome.
The substance does not need to be classified as flammable solid.

Executive summary:

The flammability of N,N-Dimethyl-N-(2-methacryloyloxyethyl)-N-(3-sulfopropyl)-ammonium betaine; (SPE) was determined following EU-Method A.10 and UN N.1 under GLP.

First, a safety test was performed. A small amount of the test item was heated on a magnesia groove with a gas burner in order to derive safety precautions. The test item burned with yellow flame under melting to a black residue.

In the preliminary screening test following the EU method, the test item was heated with the flame of a teclu burner. The test item melted and burned with yellow flame to a black mass. When the burner was taken away, the test item still burned alone. After 2 minutes the beginning of the 200 mm test item pile was reached by propagation of the flame and the stop watch was started again. The flame died after 45 seconds and propagation of the flame over approx. 10 mm of 200 mm test item pile. Therefore, the test item N,N-Dimethyl-N-(2-methacryloyloxyethyl)-N-(3-sulfopropyl)-ammonium betaine; (SPE) should be considered as

not-highly flammable (for EU regulations)

non–flammable solid (for UN regulations)