SIGMA-ALDRICH
MATERIAL SAFETY DATA SHEET
Date Printed: 04/01/2008
Date Updated: 02/01/2006
Version 1.7
Section 1 - Product and Company Information
Product Name METHACRYLIC ACID, 99%
Product Number 155721
Brand ALDRICH
Company Sigma-Aldrich
Address 3050 Spruce Street
SAINT LOUIS MO 63103 US
Technical Phone: 800-325-5832
Fax: 800-325-5052
Emergency Phone: 314-776-6555
Section 2 - Composition/Information on Ingredient
Substance Name CAS # SARA 313
METHACRYLIC ACID 79-41-4 No
Formula C4H6O2
Synonyms Acrylic acid, 2-methyl- * Kyselina methakrylova
(Czech) * Methacrylic acid (ACGIH) *
alpha-Methylacrylic acid * 2-Methylpropenoic acid
* No Lift Nails Primer * 2-Propenoic acid,
2-methyl- (9CI) * Propionic acid, 2-methylene- *
2-Methylpropenoic acid
RTECS Number: OZ2975000
Section 3 - Hazards Identification
EMERGENCY OVERVIEW
Corrosive.
Harmful in contact with skin and if swallowed. Causes burns.
Readily absorbed through skin. Target organ(s): Liver. Kidneys.
Combustible. Stench.
HMIS RATING
HEALTH: 3*
FLAMMABILITY: 2
REACTIVITY: 2
NFPA RATING
HEALTH: 3
FLAMMABILITY: 2
REACTIVITY: 2
*additional chronic hazards present.
For additional information on toxicity, please refer to Section 11.
Section 4 - First Aid Measures
ORAL EXPOSURE
If swallowed, wash out mouth with water provided person is
conscious. Call a physician. Do not induce vomiting.
INHALATION EXPOSURE
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.
DERMAL EXPOSURE
In case of skin contact, flush with copious amounts of water for
at least 15 minutes. Remove contaminated clothing and shoes.
Call a physician.
EYE EXPOSURE
In case of contact with eyes, flush with copious amounts of
water for at least 15 minutes. Assure adequate flushing by
separating the eyelids with fingers. Call a physician.
Section 5 - Fire Fighting Measures
EXPLOSION HAZARDS
Container explosion may occur under fire conditions. Closed
containers may rupture and explode during runaway polymerization.
FLASH POINT
170.6 癋 77 癈 Method: closed cup
EXPLOSION LIMITS
Lower: 1.6 % Upper: 8.7 %
AUTOIGNITION TEMP
400 癈
FLAMMABILITY
N/A
EXTINGUISHING MEDIA
Suitable: For small (incipient) fires, use media such as
"alcohol" foam, dry chemical, or carbon dioxide. For large
fires, apply water from as far as possible. Use very large
quantities (flooding) of water applied as a mist or spray; solid
streams of water may be ineffective. Cool all affected
containers with flooding quantities of water.
FIREFIGHTING
Protective Equipment: Wear self-contained breathing apparatus
and protective clothing to prevent contact with skin and eyes.
Specific Hazard(s): Emits toxic fumes under fire conditions.
Section 6 - Accidental Release Measures
PROCEDURE TO BE FOLLOWED IN CASE OF LEAK OR SPILL
Evacuate area.
PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear self-contained breathing apparatus, rubber boots, and heavy
rubber gloves.
METHODS FOR CLEANING UP
Cover with dry lime or soda ash, pick up, keep in a closed
container, and hold for waste disposal. Ventilate area and wash
spill site after material pickup is complete.
Section 7 - Handling and Storage
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HANDLING
User Exposure: Do not breathe vapor. Do not get in eyes, on
skin, on clothing. Avoid prolonged or repeated exposure. Refer
to Section 10 of the MSDS for thawing frozen material.
STORAGE
Suitable: Keep tightly closed. Keep away from heat and open
flame. Store in a cool dry place.
Section 8 - Exposure Controls / PPE
ENGINEERING CONTROLS
Safety shower and eye bath. Use only in a chemical fume hood.
PERSONAL PROTECTIVE EQUIPMENT
Respiratory: Use respirators and components tested and approved
under appropriate government standards such as NIOSH (US) or CEN
(EU). Where risk assessment shows air-purifying respirators are
appropriate use a full-face respirator with multi-purpose
combination (US) or type ABEK (EN 14387) respirator cartridges as
a backup to engineering controls. If the respirator is the sole
means of protection, use a full-face supplied air respirator.
Hand: Compatible chemical-resistant gloves.
Eye: Chemical safety goggles.
Other: Faceshield (8-inch minimum).
GENERAL HYGIENE MEASURES
Wash contaminated clothing before reuse. Discard contaminated
shoes. Wash thoroughly after handling.
EXPOSURE LIMITS, RTECS
Country Source Type Value
USA ACGIH TWA 20 PPM
New Zealand OEL
Remarks: check ACGIH TLV
USA NIOSH TWA 20 PPM (SK)
Section 9 - Physical/Chemical Properties
Appearance Physical State: Clear liquid
Color: Colorless
Property Value At Temperature or Pressure
Molecular Weight 86.09 AMU
pH 2.0 - 2.2 20 癈 Concentration: 100
g/l
BP/BP Range 159.0 - 161.0 癈
MP/MP Range 12 癈
Freezing Point N/A
Vapor Pressure 1 mmHg 20 癈
Vapor Density > 3 g/l
Saturated Vapor Conc. N/A
SG/Density 1.015 g/cm3
Bulk Density N/A
Odor Threshold N/A
Volatile% N/A
VOC Content N/A
Water Content N/A
Solvent Content N/A
Evaporation Rate N/A
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Viscosity 1.4 Pas 20 癈
Surface Tension N/A
Partition Coefficient Log Kow: 0.93
Decomposition Temp. N/A
Flash Point 170.6 癋 77 癈 Method: closed cup
Explosion Limits Lower: 1.6 %
Upper: 8.7 %
Flammability N/A
Autoignition Temp 400 癈
Refractive Index 1.431
Optical Rotation N/A
Miscellaneous Data N/A
Solubility Other Solvents: MOSTORGANIC SOLVENTS
N/A = not available
Section 10 - Stability and Reactivity
STABILITY
Stable: Unstable.
Conditions to Avoid: Heat. Direct sunlight
Materials to Avoid: Amines, Strong bases, Strong acids, Oxidizing
agents, Peroxides.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: May occur
Hazardous Polymerization Reactions: Loss of inhibitor Methacrylic
acid freezes at 15癈 (59癋). Do not use any product from frozen or
partially frozen methacrylic acid drums. Liquid formed during the
thawing process will contain more or less inhibitor than it did
before freezing. In some cases, it may contain almost no
inhibitor. Until the material is totally thawed and the inhibitor
is completely remixed, it is more susceptible than usual to
runaway polymerization. For this reason, do not remove any liquid
from a partially thawed drum. The only acceptable method of
thawing frozen or partially frozen drums of methacrylic acid is to
place the drums in a heated room at a temperature between 18癈
(64癋) and 40癈 (104癋) for 48 hours. Roll or rotate the drums
every six to eight hours to mix the contents. After thawing, store
the drums between 18癈 (64癋) and 40癈 (104癋).
Section 11 - Toxicological Information
ROUTE OF EXPOSURE
Skin Contact: Causes burns.
Skin Absorption: Readily absorbed through skin. Harmful if
absorbed through skin.
Eye Contact: Can cause blindness. Causes burns.
Inhalation: Material is extremely destructive to the tissue of
the mucous membranes and upper respiratory tract. May be harmful
if inhaled.
Ingestion: Harmful if swallowed.
TARGET ORGAN(S) OR SYSTEM(S)
Heart. Kidneys. Liver.
SIGNS AND SYMPTOMS OF EXPOSURE
Nausea, headache, and vomiting. Dizziness. Confusion.
Unconsciousness. To the best of our knowledge, the chemical,
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physical, and toxicological properties have not been thoroughly
investigated. Material is extremely destructive to tissue of the
mucous membranes and upper respiratory tract, eyes, and skin.
Inhalation may result in spasm, inflammation and edema of the
larynxand bronchi, chemical pneumonitis, and pulmonary edema.
Symptoms of exposure may include burning sensation, coughing,
wheezing, laryngitis, shortness of breath, headache, nausea, and
vomiting. Exposure can cause:
TOXICITY DATA
Oral
Rat
1060 mg/kg
LD50
Oral
Mouse
1250 mg/kg
LD50
Intraperitoneal
Mouse
48 MG/KG
LD50
Oral
Rabbit
1200 mg/kg
LD50
Skin
Rabbit
500 mg/kg
LD50
Skin
Guinea pig
1000 mg/kg
LD50
Section 12 - Ecological Information
ACUTE ECOTOXICITY TESTS
Test Type: IC50 Algae
Species: Selenastrum capricornutum resp.
Time: 96 h
Value: 0.59 mg/l
Test Type: EC50 Daphnia
Species: Daphnia magna
Time: 48 h
Value: > 130 mg/l
Test Type: EC50 Daphnia
Species: Daphnia magna
Time: 21 d
Value: 70 mg/l
Test Type: LC50 Fish
Species: Onchorhynchus mykiss (Rainbow trout)
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Time: 96 h
Value: 85 mg/l
Section 13 - Disposal Considerations
APPROPRIATE METHOD OF DISPOSAL OF SUBSTANCE OR PREPARATION
Contact a licensed professional waste disposal service to dispose
of this material. Observe all federal, state, and local
environmental regulations.
Section 14 - Transport Information
DOT
Proper Shipping Name: Methacrylic acid, stabilized
UN#: 2531
Class: 8
Packing Group: Packing Group II
Hazard Label: Corrosive
PIH: Not PIH
IATA
Proper Shipping Name: Methacrylic acid, stabilized
IATA UN Number: 2531
Hazard Class: 8
Packing Group: II
Section 15 - Regulatory Information
EU DIRECTIVES CLASSIFICATION
Symbol of Danger: C
Indication of Danger: Corrosive.
R: 21/22-35
Risk Statements: Harmful in contact with skin and if swallowed.
Causes severe burns.
S: 26-36/37/39-45
Safety Statements: In case of contact with eyes, rinse
immediately with plenty of water and seek medical advice. Wear
suitable protective clothing, gloves, and eye/face protection.
In case of accident or if you feel unwell, seek medical advice
immediately (show the label where possible).
US CLASSIFICATION AND LABEL TEXT
Indication of Danger: Corrosive.
Risk Statements: Harmful in contact with skin and if swallowed.
Causes burns.
Safety Statements: Keep away from heat. In case of contact with
eyes, rinse immediately with plenty of water and seek medical
advice. In case of accident or if you feel unwell, seek medical
advice immediately (show the label where possible).
US Statements: Readily absorbed through skin. Target organ(s):
Liver. Kidneys. Combustible. Stench.
UNITED STATES REGULATORY INFORMATION
SARA LISTED: No
TSCA INVENTORY ITEM: Yes
CANADA REGULATORY INFORMATION
WHMIS Classification: This product has been classified in
accordance with the hazard criteria of the CPR, and the MSDS
contains all the information required by the CPR.
DSL: Yes
NDSL: No
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Section 16 - Other Information
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
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 2008 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.
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