MSDS Name:Propionic Anhydride
Synonym:Non

EMERGENCY OVERVIEW
Causes burns.Corrosive.Combustible liquid.
Potential Health Effects
Eye:
Causes eye burns. Vapors may cause eye irritation.
Skin:
Causes skin burns.
Ingestion:
May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns.
Inhalation:
Causes chemical burns to the respiratory tract.
Chronic:
No information found.

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.
Skin:
Get medical aid immediately. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and 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.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician:

General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to keep fire-exposed containers cool. Combustible liquid. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water. Substance will react with water (some violently) releasing flammable, toxic, or corrosive gases and runoff.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT get water inside containers. For large fires, use water spray, fog or alcohol-resistant foam. Do NOT use straight streams of water. For small fires, use carbon dioxide, dry chemical, dry sand, or alcohol-resistant foam. Cool containers with flooding quantities of water until well after fire is out.

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. Use water spray to disperse the gas/vapor. Remove all sources of ignition. A vapor suppressing foam may be used to reduce vapors. Do not get water on spilled substances or inside containers.

Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Do not get in eyes, on skin, or on clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Keep away from heat, sparks and flame. Do not ingest or inhale. Do not allow contact with water. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Do not store near combustible materials. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Engineering Controls:
Use adequate general or local explosion-proof ventilation to keep airborne levels to acceptable levels.
Exposure Limits CAS# 123-62-6: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs 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:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Physical State: Liquid
Color: colorless
Odor: strong rancid
pH: Not available.
Vapor Pressure: 1 mm Hg @20C
Viscosity: 1.144cP@20c
Boiling Point: 167 deg C
Freezing/Melting Point: -45 deg C
Autoignition Temperature: 285 deg C ( 545.00 deg F)
Flash Point: 74 deg C ( 165.20 deg F)
Explosion Limits, lower: 1.3
Explosion Limits, upper: 11.9
Decomposition Temperature:
Solubility in water: Reacts with water.
Specific Gravity/Density: 1.01
Molecular Formula: (CH3CH2CO)2O
Molecular Weight: 130.0682

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Stable under normal temperatures and pressures..
Incompatibilities with Other Materials:
Oxidizing agents, alcohols, alkalies, water.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported.

RTECS#:
CAS# 123-62-6: UF9100000 LD50/LC50:
CAS# 123-62-6: Dermal, guinea pig: LD50 = 1 mL/kg; Oral, rat: LD50 = 2360 mg/kg; Skin, rabbit: LD50 = 10 mL/kg.
Carcinogenicity:
Propionic anhydride - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Products which are considered hazardous for supply are classified as Special Waste and the disposal of such chemicals is covered by regulations which may vary according to location. Contact a specialist disposal company or the local waste regulator for advice. Empty containers must be decontaminated before returning for recycling.

IATA
No information available.
IMO
No information available.
RID/ADR
No information available.
USA RQ: CAS# 123-62-6: 5000 lb final RQ; 2270 kg final RQ

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.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 123-62-6: 1
Canada
CAS# 123-62-6 is listed on Canadas DSL List.
CAS# 123-62-6 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 123-62-6 is listed on the TSCA inventory.