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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
thermal stability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
22 June 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)
Version / remarks:
1981
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts
EC Number:
275-085-2
EC Name:
Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts
Cas Number:
70983-43-6
Molecular formula:
see structural formula below, for n=4 C13H24N2O3 HO.Na
IUPAC Name:
Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts
Test material form:
liquid
Remarks:
oily liquid
Details on test material:
Batch No.: 54542L16
Storage at room temperature, protected from light.

Results and discussion

For thermal stability study

Test substance thermally stable:
yes
Operating temperature
Key result
Operating temp.:
>= 220 - <= 290 °C
Remarks on result:
other: exothermic effect
Sublimation:
not determined
Transformation products:
not specified

Any other information on results incl. tables

In the temperature range of 220 – 290 °C, an exothermic effect can be observed, with an average decomposition energy of -50 J/g. No further thermic effects could be detected. At approx. 420 °C the pressure in the crucibles started to raise.

Applicant's summary and conclusion

Conclusions:
The test item Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts (CAS no. 70983-43-6) showed one exothermic effect in the temperature range of 220 – 290 °C, with a decomposition energy of -50 J/g.
Executive summary:

The test item Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts (CAS no.70983-43-6) showed one exothermic effect in the temperature range of 220 – 290 °C, with a decomposition energy of -50 J/g.