propionic acid
CAS No.: 79-09-4
Synonyms:
Formula: C3H6O2
Exact Mass: 74.03680
Molecular Weight: 74.07850
PSA: 37.30000
LogP: 0.48100
propionic acid 79-09-4 MSDS
Name: Propionic acid 99% Material Safety Data Sheet
Synonym: Carboxyethane; Ethanecarboxylic acid; Ethylformic acid; Methylacetic acid; Metacetonic acid; Propanoic acid; Propanoic acid grain preserver; Psuedoacetic acid
CAS: 79-09-4
Section 1 - Chemical Product   MSDS Name:Propionic acid 99% Material Safety Data Sheet
Synonym:Carboxyethane; Ethanecarboxylic acid; Ethylformic acid; Methylacetic acid; Metacetonic acid; Propanoic acid; Propanoic acid grain preserver; Psuedoacetic acid

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
79-09-4 Propionic acid 99 201-176-3
Hazard Symbols: C
Risk Phrases: 34

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Causes burns.
Potential Health Effects
Eye:
May result in corneal injury. Causes severe eye irritation and burns.
Skin:
Harmful if absorbed through the skin. Causes severe skin irritation and burns.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes digestive tract burns with immediate pain, swelling of the throat, convulsions, and possible coma. May cause central nervous system depression.
Inhalation:
May cause irritation of the respiratory tract with burning pain in the nose and throat, coughing, wheezing, shortness of breath and pulmonary edema. May cause asthmatic attacks due to allergic sensitization of the respiratory tract. Causes chemical burns to the respiratory tract. Vapors may cause dizziness or suffocation.
Chronic:
Prolonged or repeated skin contact may cause defatting and dermatitis. Laboratory experiments have resulted in mutagenic effects.

Section 4 - FIRST AID MEASURES
  Eyes: 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. 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.
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 breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Notes to Physician:
Treat symptomatically and supportively.

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. Water may be ineffective. Material is lighter than water and a fire may be spread by the use of water. 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.
Extinguishing Media:
Water may be ineffective. Do NOT use straight streams of water. Use water spray, dry chemical, carbon dioxide, or alcohol-resistant foam.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Use water spray to dilute spill to a non-flammable mixture. Large spills may be neutralized with dilute alkaline solutions of soda ash (sodium carbonate, Na2CO3), or lime (calcium oxide, CaO). Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Cover with sand, dry lime or soda ash and place in a closed container for disposal. Remove all sources of ignition.
Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. 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 container tightly closed. Keep away from heat, sparks and flame. Discard contaminated shoes. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Use only with adequate ventilation. Do not breathe vapor or mist.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
Flammables-area. Do not store in steel container.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Use explosion-proof ventilation equipment. Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 79-09-4: United Kingdom, OES - TWA: 10 ppm TWA; 31 mg/m3 TWA United Kingdom, OES - STEL: 15 ppm STEL; 46 mg/m3 STEL Belgium - TWA: 10 ppm VLE; 31 mg/m3 VLE Belgium - STEL: 20 ppm VLE; 62 mg/m3 VLE France - VME: 10 ppm VME; 30 mg/m3 VME Germany: 31 mg/m3 TWA Malaysia: 10 ppm TWA; 30 mg/m3 TWA Netherlands: 20 ppm STEL; 62 mg/m3 STEL Netherlands: 10 ppm MAC; 31 mg/m3 MAC Russia: 20 mg/m3 TWA Spain: 10 ppm VLA-ED; 31 mg/m3 VLA-ED Spain: 20 ppm VLA-EC; 62 mg/m3 VLA-EC Personal Protective Equipment Eyes: Wear chemical splash goggles.
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 a respirator's use.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Clear liquid
Color: colorless, oily
Odor: rancid odor - pungent odor
pH: Acidic.
Vapor Pressure: 2 mm Hg @ 20 deg C
Viscosity: 1.175 cps @ 15 deg C
Boiling Point: 141 deg C
Freezing/Melting Point: -21 deg C
Autoignition Temperature: 513 deg C ( 955.40 deg F)
Flash Point: 51 deg C ( 123.80 deg F)
Explosion Limits, lower: 2.9 vol %
Explosion Limits, upper: 12.1 vol %
Decomposition Temperature: Not available.
Solubility in water: Soluble.
Specific Gravity/Density: 0.9942 @ 20/4C
Molecular Formula: CH3CH2COOH
Molecular Weight: 74.08

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Ignition sources, excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong bases, steel.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: Will not occur.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 79-09-4: UE5950000 LD50/LC50:
CAS# 79-09-4: Draize test, rabbit, eye: 990 ug Severe; Oral, rat: LD50 = 2600 mg/kg; Skin, rabbit: LD50 = 500 uL/kg.
Carcinogenicity:
Propionic acid - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Ecotoxicity:
Water flea Daphnia: TLm = 130 mg/L; 24 Hr; unspecifiedFish: Fathead Minnow: LC50 = 4740 mg/L; 96 Hr; Flow-through bioassay at 24.7 C (pH 7.60)Volatilization of propionic acid from envioronmental waters and moist soil should be extremely slow. Evaporation form dry surfaces is expected, especially when present in high concentrations such as in spill situation. The hydroysis, photolysis and bioconcentration of propionic acid are not expected to be important fate processes.

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: PROPIONIC ACID
Hazard Class: 8
UN Number: 1848
Packing Group: III
IMO
Shipping Name: PROPIONIC ACID
Hazard Class: 8
UN Number: 1848
Packing Group: III
RID/ADR
Shipping Name: PROPIONIC ACID
Hazard Class: 8
UN Number: 1848
Packing group: III
USA RQ: CAS# 79-09-4: 5000 lb final RQ; 2270 kg final RQ

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 9 Keep container in a well-ventilated place.
S 16 Keep away from sources of ignition - No
smoking.
S 23 Do not inhale gas/fumes/vapour/spray.
S 33 Take precautionary measures against static
discharges.
S 36 Wear suitable protective clothing.
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# 79-09-4: 1
Canada
CAS# 79-09-4 is listed on Canada's DSL List.
CAS# 79-09-4 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 79-09-4 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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