Material Safety Data Sheet
Science Stuff, Inc.
1104 Newport Ave
Austin, TX 78753
Phone (512) 837-6020
Chemtrec 800-424-9300
24 Hour Emergency Assistance
Section 1 Identification
Product Number:C1140 
Health:
Flammability
Reactivity
Hazard Rating:
LeastSlightModerateHighExtreme
01234
NA = Not Applicable NE = Not Established
Product Name:Acetic Anhydride  Reagent A.C.S.
Trade/Chemical Synonyms 
Formula:(CHCO)O
RTECS:AK1925000 
C.A.SCAS# 108-24-7
Section 2 Component Mixture
Sara 313ComponentCAS Number%DimExposure Limits:
Acetic Anhydride  CAS# 108-24-7 100% V/V 5 ppm (20 mg/m) OSHA TWA 
Section 3 Hazard Identification (Also see section 11)
Causes severe irritation and burns. Harmful if swallowed. Avoid breathing vapor or dust. Use with adequate ventilation. Avoid contact with eyes, skin, and clothes. Wash thoroughly after handling. Keep container closed. 
Section 4 First Aid Measures
Causes severe irritation and burns. Harmful if swallowed. Avoid breathing vapor or dust. Use with adequate ventilation. Avoid contact with eyes, skin, and clothes. Wash thoroughly after handling. Keep container closed.

FIRST AID: CALL A PHYSICIAN. SKIN: In case of contact, immediately flush skin with water for at least 15 minutes while removing contaminated clothing and shoes. Thoroughly clean clothing and shoes before reuse.

EYES: Wash eyes with plenty of water for at least 15 minutes, lifting lids occasionally. Seek Medical Aid. INHALATION: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen

INGESTION: Give several glasses of milk or water. Vomiting may occur spontaneously, but DO NOT INDUCE! Never give anything by mouth to an unconscious person.
Section 5 Fire Fighting Measures
Fire Extinguisher Type:Water spray, dry chemical, carbon dioxide, alcohol foam
Fire/Explosion Hazards:Vapor may travel considerable distance to source of ignition and flash back.
Fire Fighting Procedure:Use water spray to cool fire exposed containers.
Section 6 Accidental Release Measures
Remove all ignition sources and ventilate area of spill. Wear full protective equipment and NIOSH/MSHA approved respirator.
Section 7 Handling and Storage
Store in a cool, dry, well-ventilated place away from incompatible materials. Wash thoroughly after handling. 
Section 8 Exposure Controls & Personal Protection
Respiratory Protection:NIOSH/MSHA-approved respirator
Ventilation: Mechanical: Hand Protection:Wear appropriate gloves to prevent skin exposure
Local Exhaust: Eye Protection:Goggles and Face Shield
Other Protective Equipment: Wear appropriate clothing to prevent skin exposure
Section 9 Physical and Chemical Properties
Melting Point:-73 CSpecific Gravity1.08
Boiling Point:140 C Percent Volatile by Volume:100%
Vapor Pressure:4 mm Hg @ 20 C Evaporation Rate:0.46
Vapor Density: 3.5 Evaporation Standard:
Solubility in Water: Soluble Auto ignition Temperature: 390 C
Appearance and Odor: Clear colorless liquid / strong vinegar odor Lower Flamm. Limit in Air: 2.7%
Flash Point: 49 C Upper Flamm. Limit in Air: 10.3%
Section 10 Stability and Reactivity Information
Stability: StableConditions to Avoid: Heat, ignition sources, becomes unstable as tempurature or pressure risees.
Materials to Avoid:
strong bases, oxidizable materials
Hazardous Decomposition Products:
Carbon oxides, acetic acid fumes
Hazardous Polymerization:Will Not Occur
Condition to Avoid:None known
Section 11 Additional Information
Conditions aggravated/Target organs: Presons with preexisting skin, eye, or respiratory disorders may be more susceptible. TOXIC! CORROSIVE! Acute: Severe irritation, burns, and pain to skin, eyes, lungs, mucous membranes, and GI tract. Lung damage, delayed burns, sensitization, difficult breathing. Chronic: Dermatitis, eye damage, severe lung damage. 
DOT Classification: Acetic Anhydride, 8, UN1715, PG II
DOT regulations may change from time to time. Please consult the most recent version of the relevant regulations.
Revision No:0Date Entered: 9/1/2006 Approved by: WPF

The information contained herein is believed to be accurate and is offered in good faith for the user's consideration and investigation. No warranty is expressed or implied regarding the completeness or accuracy of this information, whether originating from Science Stuff, Inc. or from an alternate source. Users of this material should satisfy themselves by independent investigation of current scientific and medical information that this material may be safely handled.