Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2001
Report date:
2001

Materials and methods

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

Test material

Constituent 1
Chemical structure
Reference substance name:
2-Methoxy-6-methylbenzoic acid
EC Number:
612-182-4
Cas Number:
6161-65-5
Molecular formula:
C9H10O3
IUPAC Name:
2-Methoxy-6-methylbenzoic acid

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
0 hPa
Temp.:
25 °C
Vapour pressure:
0 hPa
Temp.:
53.2 °C
Vapour pressure:
0 hPa

Any other information on results incl. tables

The vapor pressure at 20 and 25°C was calculated from the regression derived equation (mean deviation: 12.29%): ln (p/bar) = A + B / (C + t/°C)

ln (p/bar) = 6.1253-3299.62/(103.91+t) t in Celsius

Temperature (°C)  measurement (hPa) calculation (hPa)
34.8  2.61e-5  2.15e-5
34.8  1.77e-05  2.15e-05
53.2  0.000341  0.00034
53.2  0.0003339  0.00034
91.5  0.0236  0.02178
91.5  0.0201  0.02178
111.6  0.123  0.1010
111.6 0.0829  0.1010

Applicant's summary and conclusion