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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
April 2005 -June 2005
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted in 2005 according to Method A4 of the Commission Directive 92/69/EEC and in accordance with GLP. Study material is well characterized.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2005
Report date:
2005

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
yes
Type of method:
effusion method: vapour pressure balance

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
445-910-2
EC Name:
-
Cas Number:
1388152-30-4
Molecular formula:
Hill formula: C24 H32 N2 O7 Si CAS formula: C15 H20 O3 Si . C9 H12 N2 O4
IUPAC Name:
(1R,2R)-1,3-Dihydroxy-1-(4-nitrophenyl)propyl-2-ammonium (1R, 5S)-5-(dimethylphenylsilyl)-2-(hydroxymethyl)cyclopent-2-ene-1-carboxylate

Results and discussion

Vapour pressure
Temp.:
25 °C
Vapour pressure:
0 Pa

Any other information on results incl. tables

A sequence of runs was started after a sample of test material had been under vacuum for approximately 24.5 hours. Temperature and pressure readings were taken between 114 and 124oC with a one hour dwell at 114oC between runs.

Summary of Results

Run Log10 [Vp(25oC)] 
 1 -6.992 
 2 -6.728
 3 -6.685 
 4 -6.542 
 5 -6.478 
 6 -6.593
 7  -6.596
Mean -6.659   
Vapour Pressure  2.2 x 10 -7 Pa   

Applicant's summary and conclusion

Conclusions:
The Vapour Pressure of the test material was determined to be 0.00000022 Pa at 25 degrees celsius
Executive summary:

The Vapour Pressure of the test material was determined to be 2.2 x 10-7 Pa at 25oC