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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
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:
EU Method A.4 (Vapour Pressure)
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
GLP compliance:
no
Type of method:
effusion method: Knudsen cell

Test material

Constituent 1
Chemical structure
Reference substance name:
β-Alanine, N-(2-aminoethyl)-N-[2-(2-carboxyethoxy)ethyl]-, N-coco acyl derivs., disodium salts
EC Number:
270-131-8
EC Name:
β-Alanine, N-(2-aminoethyl)-N-[2-(2-carboxyethoxy)ethyl]-, N-coco acyl derivs., disodium salts
Cas Number:
68411-57-4
Molecular formula:
C10H18N2Na2O5
IUPAC Name:
disodium 3-[(2-aminoethyl)[2-(2-carboxylatoethoxy)ethyl]amino]propanoate
Test material form:
liquid

Results and discussion

Vapour pressureopen allclose all
Key result
Test no.:
#1
Temp.:
20 °C
Vapour pressure:
0.003 Pa
Key result
Test no.:
#2
Temp.:
25 °C
Vapour pressure:
0.003 Pa
Test no.:
#3
Temp.:
50 °C
Vapour pressure:
0.008 Pa

Applicant's summary and conclusion

Conclusions:
The vapour pressure of the dried test item Beta-alanine, N-(2-aminoethyl)-N-[2-carboxyethoxy)ethyl]-, N-coco acyl derivs., disodium salts (aq.solution) was calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C, according to Regulation EC No. 440/2008 Method A.4. Vapour Pressure and OECD Test Guideline 104 (2006) to be 2.9E-3, 3.4E-3 and 7.7E-3, respectively.