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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
13 November 2009 to 4 December 2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted to GLP in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

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

Test material

Constituent 1
Chemical structure
Reference substance name:
5-amino-3-methylthiophene-2,4-dicarbonitrile
EC Number:
610-868-8
Cas Number:
52603-48-2
Molecular formula:
C7N3H5S
IUPAC Name:
5-amino-3-methylthiophene-2,4-dicarbonitrile

Results and discussion

Vapour pressure
Temp.:
25 °C
Vapour pressure:
0 Pa
Transition / decomposition
Transition / decomposition:
no

Any other information on results incl. tables

Seven runs to measure vapour pressure were made and the mean result of the seven was taken. Any non-linear points on the results graphs were not used when plotting the line of best fit. It is thought that these points were non-linear possibly due to external interference e.g. vibrations.

Summary of Results

Run

Log10[Vp(25°C)]

1

-5.537

2

-5.558

3

-5.583

4

-5.762

5

-5.773

6

-6.256

7

-5.578

Mean                     -5.721

Vapour Pressure     1.9 x 10-6Pa

Applicant's summary and conclusion

Conclusions:
The vapour pressure of the test material has been determined to be 1.9 x 10E-6 Pa at 25°C.
Executive summary:

In a physico-chemical properties study (0656/0410), the vapour pressure of the test material was determined to be 1.9 x 10E-6 Pa at 25 °C, according to Method A4 of Commission Regulation (EC) No 440/2008.