EMS CATALOG NO: 18500
EMS PRODUCT: Methacrylic Acid
DATE: 06/20/2008
PAGE NUMBER: One of 8
MATERIAL SAFETY DATA SHEET
The information contained herein is based on data considered
accurate. However, no warranty is expressed or implied
regarding the accuracy of these data or the results to be
obtained from the use thereof.
Electron Microscopy Sciences assumes no responsibility for
personal injury or property damage to vendees, users or
third parties caused by the material. Such vendees or users
assume all risks associated with the use of the material.
ELECTRON MICROSCOPY SCIENCES
1560 INDUSTRY ROAD
P.O. BOX 550
HATFIELD PA 19440 24 HOUR EMERGENCY PHONE NUMBER
(215) 412-8400 CHEMTREC: (800) 424-9300
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FOR PRODUCT AND SALES INFORMATION
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CONTACT ELECTRON MICROSCOPY SCIENCES OFFICE ABOVE.
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PRODUCT IDENTIFICATION
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PRODUCT NAME: Glacial Methacrylic Acid
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EMERGENCY RESPONSE INFORMATION
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FIRST AID PROCEDURES
INHALATION: Move subject to fresh air. Give artificial respiration
if breathing has stopped. Get prompt medical attention.
EYE CONTACT: IMMEDIATELY flush eyes with a large amount of water for
at least 15 minutes. Get prompt medical attention.
SKIN CONTACT: IMMEDIATELY get under a safety shower. Remove and wash
contaminated clothing thoroughly. Wash skin thoroughly
with soap and water. See a physician.
INGESTION: DO NOT induce vomiting. Give milk or water to drink.
Never give anything by mouth to an unconscious person.
See a physician. NOTE: This is a corrosive material.
Do not administer any other first aid before obtaining
the advice of a physician.
NOTE TO PHYSICIAN:
Product is corrosive. This material will have corrosive effects
in which case it may not be advisable to induce vomiting. Acute
effects can include mucosal damage and severe laryngeal edema
associated with corrosive agents.
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FIRE FIGHTING INFORMATION
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67oC/152oF Tag Closed Cup
FLASH POINT:
435oC/815oF
AUTO IGNITION TEMP:
LOWER EXPLOSIVE LIMIT: No Data
UPPER EXPLOSIVE LIMIT: No Data
EXTINGUISHING AGENTS: Carbon Dioxide, dry chemical, water spray.
PERSONAL PROTECTIVE EQUIPMENT:
Wear self-contained breathing apparatus (pressure-demand
MSHA/NIOSH approved or equivalent) and full protective gear.
SPECIAL PROCEDURES:
EXPLOSION HAZARD. Fight advanced fires from a protected
location. Use water spray to cool containers exposed to fire.
UNUSUAL HAZARDS:
Heat can cause polymerization. Heated containers can explode.
Vapors can travel to a source of ignition and flash back.
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SPILL/LEAK DISPOSAL INFORMATION
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PERSONAL PROTECTION:
Appropriate protective equipment must be worn when handling a
spill of this material. See the PERSONAL PROTECTION MEASURES
Section for recommendations. MATERIAL IS CORROSIVE. If exposed
to material during clean-up operations IMMEDIATELY remove all
contaminated clothing and wash exposed skin areas with soap and
water. See FIRST AID PROCEDURES Section for further information.
Additional personal protective equipment should include the
following: boots
PROCEDURES:
Keep spectators away. Eliminate all ignition sources. Contain
spill immediately with inert materials (e.g. sand, earth).
Transfer liquids and solid diking material to separate suitable
containers for recovery or disposal. Contaminated monomer may be
unstable. Add inhibitor to prevent polymerization. See WASTE
DISPOSAL Section for information regarding the disposal of
contained spills. CAUTION: Keep spills and cleaning runoff out
of municipal sewers and open bodies of water.
DISPOSAL:
After the addition of excess inhibitor, incinerate liquid and
contaminated diking material in accordance with local, State, and
Federal regulations.
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HAZARD INFORMATION
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HEALTH EFFECTS FROM OVEREXPOSURE:
PRIMARY ROUTES OF EXPOSURE: Inhalation, skin contact, eye contact
and dermal absorption.
INHALATION: Inhalation of vapor or mist can cause the following:
irritation of nose and throat
EYE CONTACT: Material can cause the following: corrosion to eyes-
permanent eye injury
SKIN CONTACT: This material can be harmful if absorbed through the
skin. Material can cause the following: corrosion to
the skin-skin sensitization
DELAYED EFFECTS:
Prolonged or repeated exposure can cause the following: allergic
skin reaction. Prolonged or repeated overexposure to methacrylic
acid at near lethal concentrations can cause the following:
kidney damage-liver damage
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REACTIVITY INFORMATION
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INSTABILITY:
This material is considered stable under specified conditions of
storage, shipment and/or use. See STORAGE AND HANDLING
INFORMATION Section for specified conditions. However, this
material can undergo hazardous polymerization. See Hazardous
Polymerization for conditions to avoid.
HAZARDOUS DECOMPOSITION PRODUCTS:
There are no known hazardous decomposition products for this
material.
HAZARDOUS POLYMERIZATION:
Excessive aging, heat, contamination with polymerization
catalysts, oxygen-free atmosphere, inhibitor depletion or
ultraviolet light (sunlight) may cause polymerization. Freezing
followed by improper thawing and inhibitor redistribution may
cause hazardous polymerization. An uncontrolled polymerization
may produce a rapid release of energy with the potential for an
explosion of unvented closed containers.
INCOMPATIBILITY:
Avoid contact with the following: acids, bases, oxidizing
agents, reducing agents, UV light, aluminum, steel.
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ENVIRONMENTAL IMPACT
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CHEMICAL FATE/BIODEGRADATION:
28 Day Biodegradation Study: Biodegrades under aerobic conditions.
28 Day Hydrolysis Study: Stable to hydrolysis at pH 3,7,11.
Adsorption/Desorption: Not absorbed to soil.
ENVIRONMENTAL TOXICITY:
Rainbow trout (Salmo gairdneri), 96 hour LC50: 85mg/l (slightly toxic)
Daphnia magna, 48 hour EC50: >130mg/l (Practically non-toxic
Algae, 96 hour EC50: 0.6 mg/l (Moderately toxic)
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ACCIDENT PREVENTION INFORMATION
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COMPONENT EXPOSURE INFORMATION
COMPONENT CAS No. AMT. (%)
1 Methacrylic Acid 79-41-4 98.5 Min.
2 Other ester adducts not required 1.5 Max
3 Hydroquinone 123-31-9 0.001 Max
4 MEHQ 150-76-5 0.027 Max
EXPOSURE LIMIT INFORMATION
COMPONENT OSHA ACGIH
No. Units TWA STEL TLV STEL
1 ppm 20 skin None 20 skin None
2 a a a a
3 mg/m3 2 None 2 None
4 mg/m3 5 None 5 None
a = not required
PERSONAL PROTECTION MEASURES:
RESPIRATORY PROTECTION:
A respiratory protection program meeting OSHA 1910.134 and ANSI
Z88.2 requirements must be followed whenever workplace conditions
warrant a respirator's use. None required if airborne concen-
trations are maintained below the TWA/TLV's listed in the
COMPONENT EXPOSURE INFORMATION Section.
Up to 10 times the TWA/TLV: Wear a MSHA/NIOSH approved (or
equivalent) half-mask, air purifying respirator.
Up to 100 times the TWA/TLV: Wear a MSHA/NIOSH approved (or
equivalent) full-facepiece, air-purifying respirator.
Above 100 times the TWA/TLV or Unknown: Wear a MSHA/NIOSH
approved (or equivalent) self-contained breathing apparatus in
the positive pressure mode,
OR,
MSHA/NIOSH approved (or equivalent) full-facepiece airline
respirator in the positive pressure mode with emergency escape
provisions.
Air-purifying respirators should be equipped with organic vapor
cartridges.
EYE PROTECTION: Use chemical splash goggles and face shield (ANSI
Z87.1 or approved equivalent).
HAND PROTECTION The glove(s) listed below provide protection
against permeation: Butyl rubber; Neoprene.
Rinse and remove gloves immediately after use. Wash hands with
soap and water. Gloves should be removed and replaced
immediately if there is any indication of degradation or chemical
breakthrough. NOTE: Material is a possible skin sensitizer.
OTHER PROTECTION Use chemically resistant apron or other impervious
clothing to avoid prolonged or repeated skin
contact.
VENTILATION:
Use local exhaust ventilation with a minimum capture velocity of
100 ft/min. (0.5 m/sec.) at the point of vapor evolution. Refer
to the current edition of Industrial Ventilation: A Manual of
Recommended Practice published by the American Conference of
Governmental Industrial Hygienists for information on the design,
installation, use, and maintenance of exhaust systems.
OTHER PROTECTIVE EQUIPMENT
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower.
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STORAGE/HANDLING INFORMATION
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STORAGE CONDITIONS:
The minimum recommended storage temperature for this material is
18C/64F. The maximum recommended storage temperature for this
material is 40C/104F. An automated tempered water system is
recommended for controlling bulk storage temperature. Trace
equipment with self-limiting electrical tracing to prevent local
freezing during cold weather. NEVER use steam.
Material can burn; limit indoor storage to approved areas
equipped with automatic sprinklers. Total absence of oxygen will
inactivate the inhibitor. Do not store under oxygen-free
environment. Leave air space over liquid surface in all
containers introducing air periodically if stored more than 6
months. Use monomer within 1 year.
HANDLING PROCEDURES:
Product freezes at 15C/59F. Improper thawing can result in
violent polymerization. Thaw frozen drums by placing them in a
heated room up to 40C/104F for 48 hours. DO NOT remove any
material if stock is frozen or partially frozen. NEVER use steam
or electric heating bands. Contact a manufacturer of MAA before
attempting to thaw a bulk container of frozen MAA. This material
is a potential skin sensitizer. See the PERSONAL PROTECTION
MEASURES Section prior to handling.
OTHER:
CONTAINERS HAZARDOUS WHEN EMPTY. Since emptied containers
retain product residue (vapors and/or liquid) follow all MSDS
and label warnings even after container is emptied.
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PHYSICAL/CHEMICAL PROPERTIES
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APPEARANCE: Clear
COLOR: Colorless
STATE: Liquid
ODOR CHARACTERISTIC: Pungent, irritating odor
1.3 CPS @ 25oC/77oF
VISCOSITY:
1.015 g./cc. @ 25oC/77oF
SPECIFIC GRAVITY (Water=1):
VAPOR DENSITY (Air=1): >1
0.97 mm Hg @ 25oC/77oF
VAPOR PRESSURE:
15oC/59oF
MELTING POINT:
162oC/324oF
BOILING POINT:
SOLUBILITY IN WATER: 100%
PERCENT VOLATILITY: 100%
EVAPORATION RATE (BAc=1): <1
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TOXICITY INFORMATION
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ACUTE DATA:
Dermal LD50-rabbit: <2000 mg/kg
Inhalation LC50-rat: >6.6 mg/L for 1 hour
Oral LD50-rat: 2210 mg/kg
Eye Irritation-rabbit: corrosive
Skin Irritation-rabbit: corrosive
SENSITIZATION DATA: Sensitization data for a compositionally similar
material are listed below. Allergic response
observed.
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REGULATORY INFORMATION
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WORKPLACE CLASSIFICATIONS:
This product is considered hazardous under the OSHA Hazard
Communication Standard (29CFR 1910.1200).
This product is a "controlled product" under the Canadian
Workplace Hazardous Materials Information System (WHMIS).
TRANSPORTATION CLASSIFICATIONS:
US DOT HAZARD CLASS: Corrosive Material
EMERGENCY PLANNING & COMMUNITY RIGHT-TO-KNOW (SARA TITLE 3):
Section 311/312 Categorization (40CFR 370) - This product is a
hazardous chemical under 29CFR 1910.1200, and is categorized as an immediate and de-
layed health, and flammability and reactivity physical hazard.
Section 313 Information (40CFR 372) - This product does not contain a chemical which
is listed in the Section 313 at or above de minimis concentrations.
CERCLA INFORMATION (40CFR 302.4):
Releases of this material to air, land, and or water are not reportable to the National Re-
sponse Center under the Comprehensive Environmental Response, Compensation, and
Liability Act (CERCLA) or to state and local emergency planning committees under the
Superfund Amendments and Reauthorization Act (SARA) Title III Section 304.
RCRA INFORMATION:
When a decision is made to discard this material as supplied, it does not meet RCRA's
characteristic definition of ignitability, corrosivity, or reactivity, and is not listed in 40
CFR 261.33. The toxicity characteristic (TC), however, has not been evaluated by the
Toxicity Characteristic Leaching Procedure (TCLP).
CHEMICAL CONTROL LAW STATUS:
All components of this product are listed or are excluded from listing on the U.S. Toxic
Substances Control Act (TSCA) Chemical Substance Inventory.
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