Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: scientifically acceptable study with detailed documentation

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1988
Report date:
1988

Materials and methods

Test guideline
Guideline:
other: measured
GLP compliance:
no
Type of method:
dynamic method
Remarks:
under nitrogen atmosphere

Test material

Constituent 1
Chemical structure
Reference substance name:
3,5,5-trimethylcyclohex-3-en-1-one
EC Number:
207-434-1
EC Name:
3,5,5-trimethylcyclohex-3-en-1-one
Cas Number:
471-01-2
Molecular formula:
C9H14O
IUPAC Name:
3,5,5-trimethylcyclohex-3-en-1-one
Details on test material:
name of test material (as cited in study report): beta-Isophoron
Analytical purity: 96,7%

Results and discussion

Vapour pressureopen allclose all
Temp.:
23.09 °C
Vapour pressure:
0.965 hPa
Remarks on result:
other: measured value
Temp.:
54 °C
Vapour pressure:
7.003 hPa
Remarks on result:
other: measured value
Transition / decomposition
Transition / decomposition:
yes
Transition temp.:
101.97 °C
Vapour pressure at 10°C above transition temperature:
100.04 hPa
Vapour pressure at 20°C above transition temperature:
144.64 hPa

Any other information on results incl. tables

The regression of the results leads with a mean deviation of 0.26% to the following equotation:

ln p (bar) =A+B/(C+T)

temperature
t[°C]		 pressure (exp.)
p[hPa]		 pressure (calc.)
p[hPa]		 dev
[%]
23,90 0,965 0,968 -0,2685
33,43 1,994 1,985 0,4348
39,76 2,996 2,994 0,0822
54,00 7,003 7,018 -0,2077
60,43 9,998 10,012 -0,1360
82,39 23,980 29,952 0,0937
101,97 70,000 decomposition starts  
110,60 100,400    
143,32 299,900    
173,78      
181,00 700,000    
71,00 849,900    
188,38 1000,150    
       
       
       

Applicant's summary and conclusion