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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
Henry's law constant
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: QSAR
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2006
Report date:
2006

Materials and methods

Principles of method if other than guideline:
QSAR: ratio of solubility and vapour pressure

Test material

Constituent 1
Reference substance name:
L-(+)-lactic acid
EC Number:
201-196-2
EC Name:
L-(+)-lactic acid
Cas Number:
79-33-4
IUPAC Name:
2-hydroxypropanoic acid
Constituent 2
Reference substance name:
Lactic acid
EC Number:
200-018-0
EC Name:
Lactic acid
Cas Number:
50-21-5
IUPAC Name:
2-hydroxypropanoic acid

Results and discussion

Henry's Law constant H
H:
0 atm m³/mol

Any other information on results incl. tables

1.13e-7 atm m3 mol-1

Applicant's summary and conclusion

Conclusions:
Lactic acid will not volatilize from water.
Executive summary:

The Henry's law constant of lactic acid was estimated with EPISuite, as the quotient of its vapour pressure and its aqueous solubility. Since lactic acid is miscible with water, this is in fact an overestimation of its propensity to evaporate from water.