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MSDS Material Safety Data Sheet
CAS

50-21-5
7732-18-5

File Name: 50-21-5.asp

                              SIGMA-ALDRICH

Material Safety Data Sheet

Date Printed: 17/MAR/2005
Date Updated: 26/OCT/2004
Version 1.3
According to 91/155/EEC

Classified as Hazardous according to the criteria of EU Annex 1 and
NOHSC.

1 - Product and Company Information

Product Name LACTIC ACID, PH EUR
Product Number 69775

Company Sigma-Aldrich Pty, Ltd
Unit 2, 14 Anella Avenue
Castle Hill NSW 1765
Australia
Technical Phone # +61 2 9841 0555
Fax +61 2 9841 0500
Emergency Phone # +61 2 9841 0566

2 - Composition/Information on Ingredients

Product Name CAS # EC no Annex I
Index Number
DL-LACTIC ACID 50-21-5 200-018-0 None

Ingredient Name Percent CAS # EC no Annex I
DL-LACTIC ACID >= 85 50-21-5 200-018-0 None
<= 90
Symbols: Xi
R-Phrases: 38 41
Irritating to skin. Risk of serious damage to eyes.

WATER >= 10 7732-18-5 231-791-2 None
<= 15

Formula C3H6O3
Molecular Weight 90.08 AMU
Synonyms Ethylidenelactic acid *
1-Hydroxyethanecarboxylic acid *
2-Hydroxypropanoic acid * 2-Hydroxypropionic
acid * alpha-Hydroxypropionic acid * Kyselina
2-hydroxypropanova (Czech) * Kyselina mlecna
(Czech) * DL-Lactic acid * Milchsaure (German) *
Milk acid * Ordinary lactic acid * Propanoic
acid, 2-hydroxy- * Propel * Propionic acid,
2-hydroxy- * Racemic lactic acid * SY-83 *
(+/-)-LACTIC ACID

3 - Hazards Identification

SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Irritating to skin. Risk of serious damage to eyes.


4 - First Aid Measures
AFTER INHALATION
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.

AFTER SKIN CONTACT
In case of contact, immediately wash skin with soap and copious
amounts of water.

AFTER EYE CONTACT
In case of contact, immediately flush eyes with copious amounts
of water for at least 15 minutes.

AFTER INGESTION
If swallowed, wash out mouth with water provided person is
conscious. Call a physician.

5 - Fire Fighting Measures

EXTINGUISHING MEDIA
Suitable: Water spray. Carbon dioxide, dry chemical powder, or
appropriate foam.

SPECIAL RISKS
Specific Hazard(s): Emits toxic fumes under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS
Wear self-contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.

6 - Accidental Release Measures

PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear respirator, chemical safety goggles, rubber boots, and
heavy rubber gloves.

METHODS FOR CLEANING UP
Absorb on sand or vermiculite and place in closed containers for
disposal. Ventilate area and wash spill site after material
pickup is complete.

7 - Handling and Storage

HANDLING
Directions for Safe Handling: Do not breathe vapor. Avoid
contact with eyes, skin, and clothing. Avoid prolonged or
repeated exposure.

STORAGE
Conditions of Storage: Keep tightly closed.

8 - Exposure Controls / Personal Protection

ENGINEERING CONTROLS
Mechanical exhaust required. Safety shower and eye bath.

GENERAL HYGIENE MEASURES
Wash thoroughly after handling.

PERSONAL PROTECTIVE EQUIPMENT
Respiratory Protection: Government approved respirator.
Hand Protection: Compatible chemical-resistant gloves.
Eye Protection: Chemical safety goggles.


FLUKA - 69775 www.sigma-aldrich.com Page 2
9 - Physical and Chemical Properties

Appearance Physical State: Liquid

Property Value At Temperature or Pressure

pH N/A
BP/BP Range N/A
MP/MP Range N/A
Flash Point 113 藲C Method: closed cup
Flammability N/A
Autoignition Temp N/A
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits N/A
Vapor Pressure N/A
SG/Density 1.209 g/cm3
Partition Coefficient N/A
Viscosity N/A
Vapor Density N/A
Saturated Vapor Conc. N/A
Evaporation Rate N/A
Bulk Density N/A
Decomposition Temp. N/A
Solvent Content N/A
Water Content N/A
Surface Tension N/A
Conductivity N/A
Miscellaneous Data N/A
Solubility N/A

10 - Stability and Reactivity

STABILITY
Stable: Stable.
Materials to Avoid: Bases, Oxidizing agents, Reducing agents.

HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide.

HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur

11 - Toxicological Information

RTECS NUMBER: OD2800000

ACUTE TOXICITY

LD50
Oral
Rat
3543 mg/kg

LD50
Oral
Mouse
4875 mg/kg

LD50
Skin


FLUKA - 69775 www.sigma-aldrich.com Page 3
Rabbit
> 2000 mg/kg

LD50
Oral
Guinea pig
1810 mg/kg

LD50
Oral
Quail
> 2250 mg/kg

IRRITATION DATA

Skin
Rabbit
5 mg
24H
Remarks: Severe irritation effect

Skin
Rabbit
100 mg
24H
Remarks: Moderate irritation effect

Eyes
Rabbit
0.75 mg
Remarks: Severe irritation effect

SIGNS AND SYMPTOMS OF EXPOSURE
To the best of our knowledge, the chemical, physical, and
toxicological properties have not been thoroughly investigated.

ROUTE OF EXPOSURE
Skin Contact: Causes skin irritation.
Skin Absorption: May be harmful if absorbed through the skin.
Eye Contact: Causes severe eye irritation.
Inhalation: May be harmful if inhaled. Material may be
irritating to mucous membranes and upper respiratory tract.
Ingestion: Ingestion can cause immediate burning pain in the
mouth, throat, abdomen; severe swelling of the larynx and
skeletal paralysis affecting the ability to breathe, circulatory
shock and convulsions.

CHRONIC EXPOSURE - MUTAGEN

Hamster
10 MMOL/L
Cell Type: ovary
Cytogenetic analysis

CHRONIC EXPOSURE - REPRODUCTIVE HAZARD

Species: Mouse
Dose: 5700 MG/KG
Route of Application: Oral
Exposure Time: (6-15D PREG)
Result: Maternal Effects: Other effects. Specific Developmental
Abnormalities: Musculoskeletal system.


FLUKA - 69775 www.sigma-aldrich.com Page 4
12 - Ecological Information

No data available.

13 - Disposal Considerations

SUBSTANCE DISPOSAL
Contact a licensed professional waste disposal service to dispose
of this material. Dissolve or mix the material with a combustible
solvent and burn in a chemical incinerator equipped with an
afterburner and scrubber. Observe all federal, state, and local
environmental regulations.

14 - Transport Information

RID/ADR
Non-hazardous for road transport.

IMDG
Non-hazardous for sea transport.

IATA
Non-hazardous for air transport.

15 - Regulatory Information

CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
INDICATION OF DANGER: Xi
Irritant.
R-PHRASES: 38 41
Irritating to skin. Risk of serious damage to eyes.
S-PHRASES: 26 39
In case of contact with eyes, rinse immediately with plenty of
water and seek medical advice. Wear eye/face protection.

SWITZERLAND
SWISS POISON CLASS: 4

16 - Other Information

WARRANTY
The above information is believed to be correct but does not
purport to be all inclusive and shall be used only as a guide. The
information in this document is based on the present state of our
knowledge and is applicable to the product with regard to
appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Sigma-Aldrich Inc.,
shall not be held liable for any damage resulting from handling or
from contact with the above product. See reverse side of invoice
or packing slip for additional terms and conditions of sale.
Copyright 2005 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.

DISCLAIMER
For R&D use only. Not for drug, household or other uses.




FLUKA - 69775 www.sigma-aldrich.com Page 5

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