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MSDS 
:
 Isobutyric anhydride, 97%
CAS 
:
 97-72-3
SYNONYMS 
:
 2-Methylpropionic anhydride; Propanoic acid, 2-methyl-, anhydride
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 97-72-3 |Isobutyric anhydride | 97 | 202-603-6 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: C
Risk Phrases: 34

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
Causes burns.Moisture sensitive.Corrosive.

Potential Health Effects
Eye:
Causes eye burns. May cause chemical conjunctivitis and corneal
damage.
Skin:
Causes skin burns. May cause dermatitis. May cause cyanosis of the
extremities. May cause skin rash (in milder cases), and cold and
clammy skin with cyanosis or pale color.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes
gastrointestinal tract burns. May cause perforation of the digestive
tract. Ingestion of large amounts may cause CNS depression. May
cause systemic effects.
Inhalation:
Causes chemical burns to the respiratory tract. Inhalation may be
fatal as a result of spasm, inflammation, edema of the larynx and
bronchi, chemical pneumonitis and pulmonary edema. Aspiration may
lead to pulmonary edema. Vapors may cause dizziness or suffocation.
May cause systemic effects. May cause burning sensation in the
chest.
Chronic:
Prolonged or repeated skin contact may cause dermatitis. Prolonged
or repeated eye contact may cause conjunctivitis. Effects may be
delayed.

**** SECTION 4 - FIRST AID MEASURES ****

Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid
immediately. Do NOT allow victim to rub eyes or keep eyes closed.
Extensive irrigation with water is required (at least 30 minutes).
Skin:
Get medical aid immediately. Immediately flush skin with plenty of
water for at least 15 minutes while removing contaminated clothing
and shoes. Wash clothing before reuse. Remove contaminated clothing
and shoes. Destroy contaminated shoes.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4
cupfuls of milk or water. Never give anything by mouth to an
unconscious person. Get medical aid immediately. Do NOT induce
vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls
of milk or water.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh
air immediately. If breathing is difficult, give oxygen. Do not use
mouth-to-mouth resuscitation if victim ingested or inhaled the
substance; induce artificial respiration with the aid of a pocket
mask equipped with a one-way valve or other proper respiratory
medical device.
Notes to Physician:

**** SECTION 5 - FIRE FIGHTING MEASURES ****

General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Vapors may form an explosive mixture with air.
Vapors can travel to a source of ignition and flash back. During a
fire, irritating and highly toxic gases may be generated by thermal
decomposition or combustion. Will burn if involved in a fire. Use
water spray to keep fire-exposed containers cool. Containers may
explode in the heat of a fire. Flammable liquid and vapor. Vapors
may be heavier than air. They can spread along the ground and
collect in low or confined areas. Runoff to sewer may create fire or
explosion hazard.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Water may be
ineffective. Do NOT get water inside containers. Do NOT use straight
streams of water. In case of fire, use alcohol foam.

**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Avoid runoff into storm sewers and
ditches which lead to waterways. Remove all sources of ignition. Use
a spark-proof tool. Provide ventilation. Do not get water inside
containers. A vapor suppressing foam may be used to reduce vapors.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Wash thoroughly after handling. Ground and bond containers when
transferring material. Use spark-proof tools and explosion proof
equipment. Do not get in eyes, on skin, or on clothing. Empty
containers retain product residue, (liquid and/or vapor), and can be
dangerous. Keep away from heat, sparks and flame. Do not ingest or
inhale. Do not allow contact with water. Use only in a chemical fume
hood. Discard contaminated shoes. Do not pressurize, cut, weld,
braze, solder, drill, grind, or expose empty containers to heat,
sparks or open flames. Keep from contact with moist air and steam.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of
ignition. Flammables-area. Corrosives area. Keep containers tightly
closed. Store protected from moisture. Store in a cool, dry area
away from incompatible substances.

**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****

Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use adequate general or
local explosion-proof ventilation to keep airborne levels to
acceptable levels.
Exposure Limits
CAS# 97-72-3:


Personal Protective Equipment

Eyes:
Wear chemical splash goggles. Wear appropriate
protective eyeglasses or chemical safety goggles as
described by OSHA's eye and face protection
regulations in 29 CFR 1910.133 or European Standard
EN166.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
A respiratory protection program that meets OSHA's 29
CFR 1910.134 and ANSI Z88.2 requirements or European
Standard EN 149 must be followed whenever workplace
conditions warrant respirator use.

**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****

Physical State: Clear liquid
Color: clear, colorless
Odor: None reported.
pH: Not available.
Vapor Pressure: 10 mm Hg @ 67 deg C
Viscosity: Not available.
Boiling Point: 182 deg C @ 760.00mm Hg
Freezing/Melting Point: -56 deg C
Autoignition Temperature: 351 deg C ( 663.80 deg F)
Flash Point: 59 deg C ( 138.20 deg F)
Explosion Limits, lower: 1.00 vol %
Explosion Limits, upper: 6.20 vol %
Decomposition Temperature: Not available.
Solubility in water: decomposes in water
Specific Gravity/Density: .9540g/cm3
Molecular Formula: C8H14O3
Molecular Weight: 158.20

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
Stable under normal temperatures and pressures. May decompose on
exposure to moist air or water.
Conditions to Avoid:
Incompatible materials, ignition sources, moisture, contact with
water, excess heat, strong oxidants.
Incompatibilities with Other Materials:
Moisture, water, strong oxidizing agents, strong bases.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon
dioxide.
Hazardous Polymerization: Has not been reported.

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 97-72-3 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Isobutyric anhydride -
Not listed by ACGIH, IARC, or NTP.

**** SECTION 12 - ECOLOGICAL INFORMATION ****



**** SECTION 13 - DISPOSAL CONSIDERATIONS ****

Dispose of in a manner consistent with federal, state, and local regulations.

**** SECTION 14 - TRANSPORT INFORMATION ****

IATA
Shipping Name: ISOBUTYRIC ANHYDRIDE
Hazard Class: 3 (8)
UN Number: 2530
Packing Group: III
IMO
Shipping Name: ISOBUTYRIC ANHYDRIDE
Hazard Class: 3.3 (8)
UN Number: 2530
Packing Group: III
RID/ADR
Shipping Name: ISOBUTYRIC ANHYDRIDE
Hazard Class: 3
UN Number: 2530
Packing group: III

**** SECTION 15 - REGULATORY INFORMATION ****

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 34 Causes burns.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
WGK (Water Danger/Protection)
CAS# 97-72-3: 1
Canada
CAS# 97-72-3 is listed on Canada's DSL List.
CAS# 97-72-3 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 97-72-3 is listed on the TSCA inventory.

**** SECTION 16 - ADDITIONAL INFORMATION ****

MSDS Creation Date: 9/02/1997 Revision #6 Date: 3/18/2003

The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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