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Physical & Chemical properties

Vapour pressure

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2002
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
Cited as Directive 92/69/EEC, A.4
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
Infracor Chemistry Services, Marl Germany
Type of method:
effusion method: vapour pressure balance
Key result
Temp.:
25 °C
Vapour pressure:
0 hPa
Transition / decomposition:
no

Data from vapour pressure measurements:

Temperature / [°C]

Pressure / [hPa]

20

0.000039

25

0.000051

30

0.000059

35

0.000075

40

0.000095

45

0.000110

50

0.000160

55

0.000220

 

The vapour pressure for 25 °C was graphically interpolated from the vapour pressure curve and was p = 5.1E-05 hPa (p = 4.1E-05 hPa at 20 °C).

The vapour pressure of Chlorhexidine dicgluconate was determined by vapour pressure balance according to EEC-Directive 92/69 EEC, Part A, Methods for the determination of physico-chemical properties, A.4 “Vapour Pressure”, EEC Publication No. L383, December 1992 and was found to be

p = 5.1E-05 hPa at 25 °C

Conclusions:
The vapour pressure of Chlorhexidine digluconate has been determined to 5.1E-5 hPa at 25°C.

Description of key information

The vapour pressure of Chlorhexidine digluconate was determined to be 5.1E-05 hPa at 25°C. 

Key value for chemical safety assessment

Vapour pressure:
0 hPa
at the temperature of:
25 °C

Additional information

The vapour pressure of Chlorhexidine digluconate has been determined in a study according to OECD 104.