Registration Dossier

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:
other: GLP guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
GLP compliance:
yes (incl. QA statement)
Type of method:
static method

Test material

Constituent 1
Reference substance name:
Ethanol, 2-amino-, reaction products with ammonia, by-products from
EC Number:
272-729-4
EC Name:
Ethanol, 2-amino-, reaction products with ammonia, by-products from
Cas Number:
68910-05-4
Molecular formula:
Unspecified
IUPAC Name:
Ethanol, 2-amino-, reaction products with ammonia, by-products from
Details on test material:
Name of test material (as cited in study report): "Diethylentriamine R" (Reaction products of 2-aminoethanol with ammonia)
Batch-No.: AM385290H0
Analytical purity: The test item is a complex mixture of a large number of individual components. Main components are 2-(2-aminoethylamino)ethanol (10-80 % (w/w)) and N-N’-bis(2-aminoethyl)ethane-1,2-diamine (5-50 % (w/w))

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
6.1 hPa
Temp.:
50 °C
Vapour pressure:
27.7 hPa

Any other information on results incl. tables

Temperature [°C] Vapour Pressure [hPa]
  Measurement Calculation
20,7 6,5 6,37
40,3 17,8 17,91
50,2 26,8 27,89
60,3 41,1 41,94
80,2 86,2 84,17
100,1 155,7 150,82
120,2 252,8 248,66
140,2 378,0 381,26
160,1 547,3 551,73
180,1 756,7 764,20

The regression of the results leads with a mean deviation of 1,9% to the following equation:

ln(p/hPa) = 11.5992 - 1609.84 / (144.44 + t/°C)

The vapour pressures at 20°C and 50°C were extrapolated and calculated, respectively, from the regression equation.

Applicant's summary and conclusion