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Physical & Chemical properties

Boiling point

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Endpoint:
boiling point
Type of information:
other: Handbook data
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Reason / purpose:
reference to same study
Reference:
Composition 0
Principles of method if other than guideline:
Compilation of literature data, methods not described.
GLP compliance:
no
Type of method:
other: Literature review in handbook
Test material information:
Composition 1
Boiling pt.:
ca. 122 °C
Atm. press.:
15 mm Hg
Conclusions:
According to Holten, the boiling point of pure lactic acid is 122 °C at 15 mm Hg (20 hPa). The difference between the boiling point of racemic and optically active lactic acids is probably small
Executive summary:

According to Holten, the boiling point of anhydrous lactic acid is 122 °C at 15 mm Hg (20 hPa).

Endpoint:
boiling point
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
QSAR prediction
Reference:
Composition 0
Principles of method if other than guideline:
Method: other: calculated by Aspen formula with QSAR
GLP compliance:
no
Type of method:
other: QSAR
Test material information:
Composition 1
Boiling pt.:
216.6 °C
Atm. press.:
1 013 hPa
Conclusions:
Lactic acid is estimated to have a boiling point of 216.6 °C at atmospheric pressure.
Executive summary:

Lactic acid is estimated to have a boiling point of 216.6 °C at atmospheric pressure.

Description of key information

A concentrated solution of lactic acid in water starts to boil at 122 °C at 15 mm Hg (20 hPa). A calculation of the boiling point at 1013 hPa with QSAR indicates a boiling point of 216.6 °C. The QSAR result is selected as the key value for safety assessment since relating to pure substance.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
217 °C

Additional information