Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
adsorption / desorption, other
Remarks:
estimated by calculation
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Internationally accepted method, EPI-Suite, EPA (USA) Acetyl chloride hydrolyses very fast to acetic acid & hydrochloric acid. Therefore, the calculated adsorption/desorption rates of the latter ought to be taken instead.

Data source

Reference
Reference Type:
other: calculation
Title:
Unnamed
Year:
2008
Report date:
2008

Materials and methods

Principles of method if other than guideline:
Calculation by EPI-Suite, EPA (USA) v3.20 / PCKOCWIN v1.66

Test material

Constituent 1
Chemical structure
Reference substance name:
Acetyl chloride
EC Number:
200-865-6
EC Name:
Acetyl chloride
Cas Number:
75-36-5
Molecular formula:
C2H3ClO
IUPAC Name:
acetyl chloride

Results and discussion

Adsorption coefficientopen allclose all
Type:
Koc
Value:
1
Type:
log Koc
Value:
0

Any other information on results incl. tables

Note: acetylchloride hydrolyses very rapidly which is not accounted for in EPIWIN.

So, Koc 2.211, Log Koc 0.345 were replaced by the values calculated for acetic acid, i.e. Koc 1, Log Koc 0.000.

Applicant's summary and conclusion

Validity criteria fulfilled:
not applicable
Conclusions:
Acetylchloride hydrolyses very rapidly which is not accounted for in EPIWIN. Therefore, Koc 2.211, Log Koc 0.345 were replaced by the values calculated for acetic acid, i.e. Koc 1, Log Koc 0.000.
Executive summary:

Acetylchloride hydrolyses very rapidly which is not accounted for in EPIWIN. Therefore, Koc 2.211, Log Koc 0.345 were replaced by the values calculated for acetic acid, i.e. Koc 1, Log Koc 0.000.