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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2018-01-12 to 2018-01-18
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
not specified
Type of method:
static method

Test material

Constituent 1
Chemical structure
Reference substance name:
4-methylpentan-2-one oxime
EC Number:
203-298-2
EC Name:
4-methylpentan-2-one oxime
Cas Number:
105-44-2
Molecular formula:
C6H13NO
IUPAC Name:
4-methylpentan-2-one oxime
Test material form:
liquid
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 2017 494
- Expiry date: 02 October 2018

Results and discussion

Vapour pressureopen allclose all
Key result
Temp.:
20 °C
Vapour pressure:
80 Pa
Remarks on result:
other: calculated using Antoine's law
Key result
Temp.:
25 °C
Vapour pressure:
113 Pa
Remarks on result:
other: calculated using Antoine's law

Any other information on results incl. tables

The measured data is self-consistent, as shown by the coefficient of determination of the regression (0.9994). The maximum error involved by the modelling of vapour pressure with the Antoine’s law is about 3,4 % relative.

Applicant's summary and conclusion

Conclusions:
The static cell method was applied for the determination of the vapour pressure of 4-methyl-2-pentanone oxime.
The vapour pressure of the test item was determined to be 80 Pa at 20°C (293K) and 113 Pa at 25°C (298K).