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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental period was 27 November 2017 to 29 November 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 guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
GLP compliance:
yes
Type of method:
differential scanning calorimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
3-amino-N,N,N-trimethylanilinium trichlorozincate(1-)
Cas Number:
53831-80-4
Molecular formula:
C9H15Cl3N2Zn
IUPAC Name:
3-amino-N,N,N-trimethylanilinium trichlorozincate(1-)
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
Identification: ATZ
Appearance: Blue to grey powder
Batch: 013072810B
Purity/Composition: 100%
Test item storage: At room temperature
Stable under storage conditions until: 30 September 2019 (expiry date)

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
ca. 244.2 °C
Atm. press.:
ca. 1 atm
Decomposition:
yes
Decomp. temp.:
244.2 °C
Sublimation:
no

Any other information on results incl. tables

In experiment 1. An endothermic peak was observed between 200°C and 275°C followed by a strong exothermic effect starting at 350°C. The extrapolated onset temperature of the first peak was 244.129°C. The endothermic effect was most likely obtained due to melting of the test item. The exothermic effect was probably obtained due to reaction and/or decomposition of the test item.

After the experiment, a black molten residue remained in the sample container (original colour: blue to grey). Based on this visual observation, it was found that the test item had molten and the change of the colour demonstrated reaction and/or decomposition of the test item.

In order to investigate the melting peak, Experiment 2 was stopped directly after the melting peak. The extrapolated onset temperature was 244.335°C. After the experiment, an orange molten residue remained in the sample container (original colour: blue to grey). Based on this visual observation, it was found that the test item had molten and the change of the colour demonstrated reaction and/or decomposition of the test item.

The melting temperature was determined as the mean melting temperature of Experiment 1 (244.129°C) and Experiment 2 (244.335°C).

Applicant's summary and conclusion

Conclusions:
The melting and boiling temperature of ATZ were determined by DSC.
The melting temperature of the test item was 244.2°C (537.4K).
Reaction and/or decomposition of the test item was observed during melting at the DSC experiments.
Executive summary:

The melting and boiling temperature of ATZ were determined by DSC.

The melting temperature of the test item was 244.2°C (537.4K).

Reaction and/or decomposition of the test item was observed during melting at the DSC experiments.