DL-Lactic acid
2-Hydroxypropanoic acid
alpha-Hydroxypropionic acid
C3H6O3 / CH3CHOHCOOH
Molecular mass: 90.1
ICSC # 0501
CAS # 50-21-5
RTECS # OD2800000
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
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NO open flames.
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Powder, alcohol-resistant foam, water spray, carbon dioxide.
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Explosion
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Exposure
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STRICT HYGIENE!
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•Inhalation
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Burning sensation.
Cough.
Sore throat.
Shortness of breath.
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Local exhaust or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Redness.
Pain.
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
Pain.
Severe deep burns.
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Safety goggles,
or face shield.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Sore throat.
Burning sensation.
Abdominal pain.
Abdominal cramps.
Nausea.
Vomiting.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Do NOT induce vomiting.
Give nothing to drink.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Collect leaking liquid in sealable containers.
Cautiously neutralize spilled liquid with weak alkaline solution, e.g. disodium carbonate.
Then wash away with plenty of water.
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Separated from
strong bases.
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Important Data
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Physical State; Appearance:
VISCOUS, COLOURLESS TO YELLOW LIQUID
OR COLOURLESS TO YELLOW CRYSTALS.
Physical Dangers:
Chemical Dangers:
The substance is a medium strong acid.
Occupational Exposure Limits:
TLV not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol and
by ingestion.
Inhalation Risk:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
irritates the skin and the respiratory tract, and
is corrosive to
the eyes.
Corrosive on ingestion.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Melting point: 17°C
Relative density (water = 1): 1.2
Solubility in water: miscible
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Flash point: 110°C c.c.
Octanol/water partition coefficient as log Pow: -0.6
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Environmental
Data
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N O T E S
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ADDITIONAL INFORMATION
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ICSC: 0501
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LACTIC ACID
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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