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Physical & Chemical properties

Appearance / physical state / colour

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Endpoint:
appearance / physical state / colour
Type of information:
other: Observations
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Appearance is by definition established by observation.
Reference:
Composition 0
Principles of method if other than guideline:
Properties appearance, physical state, and colour are by definition established by observation.
GLP compliance:
not specified
Test material information:
Composition 1
Physical state at 20°C and 1013 hPa:
liquid
Form:
viscous
Colour:
colourless
Odour:
odourless
Substance type:
organic
Conclusions:
Lactic acid is produced as a highly concentrated aqueous solution. This solution is a slightly viscous, colour- and odourless liquid.
Executive summary:

Lactic acid is produced as a highly concentrated aqueous solution. This solution is a slightly viscous, colour- and odourless liquid.

Endpoint:
appearance / physical state / colour
Type of information:
other: Handbook data
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Reference:
Composition 0
Principles of method if other than guideline:
Properties appearance, physical state, and colour are by definition established by observation.
GLP compliance:
not specified
Test material information:
Composition 1
Physical state at 20°C and 1013 hPa:
liquid
Form:
viscous
Colour:
colourless
Odour:
odourless
Substance type:
organic

Lactic acid is, when pure and anhydrous, actually a white chrystalline solid with a low melting point. However, because of the physical properties and the difficulties in the preparation of the pure and anhydrous acid this material is rare. Lactic acid appears generally in the form of more or less concentrated aqueous solutions, as syrupy liquids. Solutions of good quality are practically colour- and odourless.

Conclusions:
Lactic acid appears generally in the form of more or less concentrated aqueous solutions, as syrupy liquids. Solutions of good quality are practically colour- and odourless.
Executive summary:

Lactic acid appears generally in the form of more or less concentrated aqueous solutions, as syrupy liquids. Solutions of good quality are practically colour- and odourless.

Description of key information

Lactic acid is produced as a highly concentrated aqueous solution. This solution is a slightly viscous, colour- and nearly odourless liquid.

Key value for chemical safety assessment

Additional information