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Diss Factsheets

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2019-06-12 to 2019-06-25
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
No 440/2008 (as amended) of 30 May 2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
23 March 2006
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:
Copper diformate
EC Number:
208-865-8
EC Name:
Copper diformate
Cas Number:
544-19-4
Molecular formula:
CH2O2.1/2Cu
IUPAC Name:
copper diformate
Test material form:
solid: particulate/powder
Details on test material:
blue in colour
Specific details on test material used for the study:
Batch: CUAI002
Purity: >99.00 wt%
Expiry date: 07 February 2027
Storage conditions:Room temperature in the dark

Results and discussion

Vapour pressure
Key result
Temp.:
ca. 25 °C
Vapour pressure:
< 0.006 Pa

Any other information on results incl. tables

Table 1 – Vapor Pressure Data Run 10

 Temperature (ºC)  Temperature (K)  Reciprocal Temperature (K-1)  Mass Difference (µg)  Mass Difference (kg)  Vapor Pressure (Pa)  Log10 Vp
 90  363.15  0.002754  16.77  1.677e-08 0.02328 -1.63302
 91  364.15  0.002746  14.58

 1.458e-08

0.02024

 -1.69379

92 

 365.15

 0.002739

 14.58

 1.458e-08

 0.02024

 -1.69379

 93

 366.15

 0.002731

14.08

1.408e-08

0.01955

 -1.70885

 94

 367.15

 0.002724

 16.17

 1.617e-08

 0.02245

 -1.64878

 95

368.15

 0.002716

16.77

 1.677e-08

 0.02328

-1.63302

 96

  369.15  0.002709 15.97  1.597e-08  0.02217  -1.65423
 97  370.15  0.00270 15.88  1.588e-08  0.02205  -1.65659
 98  371.15  0.002694  17.67  1.767e-08  0.02453  -1.61030
 99  372.15  0.002687  18.67  1.867e-08  0.02592  -1.58637
 100  373.15  0.002680  20.17  2.017e-08  0.02800  -1.55284

Applicant's summary and conclusion

Conclusions:
The vapor pressure of the test item has been determined to be less than 6.0 x 10-3 Pa at 25 ºC.
Executive summary:

The determination was carried out using the vapour pressure balance method, designed to be compatible with Method A.4 Vapour Pressure of Commission Regulation (EC) No 440/2008 (as amended) of 30 May 2008 and Method 104 of the OECD Guidelines for Testing of Chemicals, 23 March 2006. The test item did not change in appearance under the conditions used in the determination. The reading at 100 ºC (373.15 K) was chosen because this is the data point which gives the highest estimated vapor pressure at any given temperature when a slope of –1000 K is imposed upon it. Extrapolation to 25 ºC gave a vapor pressure of 5.93 x 10-3 Pa which has been taken as a maximum for this material.

The vapor pressure of Copper Diformate has been determined to be less than 6.0 x 10-3 Pa at 25 °C, using the vapor pressure balance method.