Registration Dossier

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:
other: GLP guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2013

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
Chemical structure
Reference substance name:
Sodium butanolate
EC Number:
219-144-2
EC Name:
Sodium butanolate
Cas Number:
2372-45-4
Molecular formula:
C4H10O.Na
IUPAC Name:
sodium butan-1-olate
Details on test material:
- Name of test material (as cited in study report): "Na-n-Butylat Lsg. 20% in n-Butanol (PRD 30317 418)"
- Physical state: liquid
- Analytical purity: 22.5 g/100g , determined by potentiometric titration (study no
12L00222)
- Lot/batch No.: Lot 000STD77L0

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
2.4
Remarks on result:
other: extrapolated value
Temp.:
25 °C
Vapour pressure:
3.5
Remarks on result:
other: extrapolated value
Temp.:
50 °C
Vapour pressure:
21.2

Any other information on results incl. tables

Results:

Temperature
[°C]
Vapour pressure [p/hPa]
measurement calculation
39,5 10,5 10,49
49,5 20,5 20,50
59,5 37,9 37,93
69,5 66,6 66,86
79,5 112,8 112,91
99,5 289,1 288,25
109,5 440,3 439,05
119,5 652,1 650,48
129,5 938,3 939,89
132,0 1023,4 1026,75

The regression of the vapour pressure data leads with a mean deviation

of 0.20% to the following results:

ln (p/hPa) = 18.0345- 3513.15 /(184.49 + t/°C)

ln the temperature range used for vapour pressure measurements the

test item was liquid.

Applicant's summary and conclusion