Product Identification

Product Name

2-Methyllactic acid

Synonyms

2-Hydroxy-2-methylpropanoic acid
2-Hydroxy-2-methylpropionic acid
2-Hydroxyisobutyric acid
2-Methyllactic acid
Hydroxydimethylacetic acid

CAS

594-61-6

Formula

C4H8O3

Molecular Weight

104.11

EINECS

209-848-8

Beilstein/Gmelin

1744739

Beilstein Reference

4-03-00-00782

EC Class

irritant

Physical and Chemical Properties

Appearance

White powder.

Solubility in water

Very soluble

Melting Point

77

Boiling Point

212

Vapor Pressure

0.04 (25 C)

pKa/pKb

4.01 (pKa)

Partition Coefficient

-.35

Heat Of Vaporization

52.1 kJ/mol

Heat Of Combustion

-1976 kJ/mol

First Aid Measures

Ingestion

Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation

Remove from exposure to fresh air immediately.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids.

Handling and Storage

Storage

Store in a cool, dry place. Keep container closed when not in use. Refrigerator (approx 4 C).

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.

Respirators

Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.

Exposure Effects

The toxicological properties of this material have not been investigated.

Fire Fighting Measures

Flash Point

105

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal.

Stability and Reactivity

Incompatibilities

Bases - oxidizing agents - reducing agents.

Stability

Stable under normal temperatures and pressures.

Decomposition

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Transport Information

HS Code

2918 19 80

Hazards Identification

EC Risk Phrase

R 36/37/38

EC Safety Phrase

S 26 36