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Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 23 January 2017 to 16 March 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
2009
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
2006
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
Version / remarks:
1996
Deviations:
no
GLP compliance:
yes
Type of method:
effusion method: isothermal thermogravimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
N,N-bis(2-hydroxyethyl)glycine
EC Number:
205-755-1
EC Name:
N,N-bis(2-hydroxyethyl)glycine
Cas Number:
150-25-4
Molecular formula:
C6H13NO4
IUPAC Name:
N,N-bis(2-hydroxyethyl)glycine
impurity 1
Chemical structure
Reference substance name:
N-(2-hydroxyethyl)ethylenediaminetriacetic acid
EC Number:
205-759-3
EC Name:
N-(2-hydroxyethyl)ethylenediaminetriacetic acid
Cas Number:
150-39-0
Molecular formula:
C10H18N2O7
IUPAC Name:
N-{2-[bis(carboxymethyl)amino]ethyl}-N-(2-hydroxyethyl)glycine
impurity 2
Reference substance name:
Not specified
IUPAC Name:
Not specified
impurity 3
Chemical structure
Reference substance name:
Water
EC Number:
231-791-2
EC Name:
Water
Cas Number:
7732-18-5
Molecular formula:
H2O
IUPAC Name:
Dihydrogen oxide
Test material form:
solid: crystalline
Details on test material:
Appearance: white crystalline powder
Storage conditions: at room temperature protected from light

Results and discussion

Vapour pressureopen allclose all
Key result
Temp.:
25 °C
Vapour pressure:
< 0.007 Pa
Key result
Temp.:
20 °C
Vapour pressure:
< 0.002 Pa

Any other information on results incl. tables

The weight losses of the test substance at 100°C, 110°C, 120°C and 130°C were lower than the weight losses of hexachlorobenzene at the same temperatures (see the attachment). From this it was concluded that vapour pressure of the substance at 20°C (25°C) is lower than the vapour pressure of hexachlorobenzene at 20°C (25°C).

Applicant's summary and conclusion

Conclusions:
The vapour pressure at 25°C was determined to be < 6.7E-03 Pa.
The vapour pressure at 20°C was determined to be < 1.5E-03 Pa.
Executive summary:

The vapour pressure of the substance was determined using the isothermal thermogravimetric effusion method in a GLP study according to EC A.4, OECD 104 and OPPTS 830.7950. The vapour pressure at 25°C was determined to be <6.7E-03 Pa. The vapour pressure at 20°C was determined to be <1.5E-03 Pa.