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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2022

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
“The study does not need to be conducted for substances which decompose before boiling”. Therefore the study of boiling point was not performed.
GLP compliance:
yes (incl. QA statement)
Type of method:
method according to Siwoloboff

Test material

Constituent 1
Chemical structure
Reference substance name:
sodium 2-amino-3-carboxypropanoate
Cas Number:
323194-76-9
Molecular formula:
C4H7NO4.xNa
IUPAC Name:
sodium 2-amino-3-carboxypropanoate
Test material form:
solid: particulate/powder
Details on test material:
Name: L-aspartic acid, sodium salt monohydrate 1
Batch/Lot number: Z201125/ VG29848563
CAS number: 323194-76-9
Anhydrous substance name: L-aspartic acid, sodium salt, CAS: 17090-93-6
Appearance: Solid, white, crystalline powder
Purity: 98%
Expiry date: 24 November 2022
Storage conditions: Room temperature (15-25 ºC), protected from humidity (tight closed
container)
Specific details on test material used for the study:
Test item: Aspartic Acid Sodium Salt Monohydrate – min. 98% - ADCF (L-Aspartic acid monosodium salt monohydrate)
Active substance: Aspartic Acid Sodium Salt Monohydrate
CAS No.: 323194-76-9 [17090-93-6 – L-aspartic acid Sodium salt (anhydrous)]
Appearance: Solid, crystalline powder, white
Batch number: VG29848563 Z201125
Manufacturing date: 25.11.2020
Expiry date: 24.11.2022
Producer: Chemos GmbH Co. KG
Sample code: 35/22
Storage temperature range: 15-30 ̊C

Results and discussion

Boiling point
Key result
Atm. press.:
ca. 101 325 Pa
Decomposition:
yes
Decomp. temp.:
ca. 225 °C
Remarks on result:
not determinable because of methodological limitations

Applicant's summary and conclusion

Conclusions:
Boiling point was not determined – test item decomposes and the decomposition process
starts at about 225 °C.
Executive summary:

Boiling point was not determined – test item decomposes and the decomposition process
starts at about 225 °C.


Due to the fact that the test item decomposes before melting point – the boiling point study was not executed.