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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Adsorption / desorption

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Administrative data

Endpoint:
adsorption / desorption: screening
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

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

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 121 (Estimation of the Adsorption Coefficient (Koc) on Soil and on Sewage Sludge using High Performance Liquid Chromatography (HPLC))
Version / remarks:
2001
Qualifier:
according to guideline
Guideline:
EU Method C.19 (Estimation of the Adsorption Coefficient (KOC) on Soil and Sewage Sludge Using High Performance Liquid Chromatography (HPLC))
Version / remarks:
2008
GLP compliance:
yes
Type of method:
HPLC estimation method
Media:
soil/sewage sludge

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
468-710-7
EC Name:
-
Cas Number:
754-12-1
Molecular formula:
C3H2F4
IUPAC Name:
2,3,3,3-tetrafluoroprop-1-ene
Radiolabelling:
no

Study design

Test temperature:
30 °C

HPLC method

Details on study design: HPLC method:
EQUIPMENT
- Apparatus: 515 HPLC Pump, 717 Plus Autosampler (Waters, Milford, MA, USA)
- Type, material and dimension of analytical (guard) column: Hypersil BDS-CN, 150 x 4.6 mm i.d., dp = 5 µm (Thermo Fisher Scientific, Waltham, MA, USA)
- Detection system: Photodiode Array Dectector 2996, UV dectection at 210 nm (Waters, Milford, MA, USA), Refractive Index Detector 2414, sensitivity = 4, time constant = 1 sec (Waters, Milford, MA, USA)


MOBILE PHASES
- Type: 55/45 (v/v) Methanol/Water
- Experiments with additives carried out on separate columns: no
- Solutes for dissolving test and reference substances: Methanol

REFERENCE SUBSTANCES
- Identity: Acetanilide

DETERMINATION OF RETENTION TIMES
- Quantity of test substance introduced in the column: 10 µl
- Quantity of reference substances: 10 µl

REPETITIONS
- Number of determinations: 2

Results and discussion

Adsorption coefficientopen allclose all
Type:
Koc
Value:
< 18
Type:
log Koc
Value:
< 1.26

Results: HPLC method

Details on results (HPLC method):
UV detection
- Retention times of reference substances used for calibration: Acetanilide: 2.23 min (Log Koc: 1.26)
- Retention time of test Substance: 1.91 min
RI detection
- Retention times of reference substances used for calibration: Acetanilide: 2.46 min (Log Koc: 1.26)
- Retention time of test Substance: 2.14 min

It was concluded that the log Koc of the test substance was <1.26 (Koc <18)

Applicant's summary and conclusion