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isobutyric acid
CAS No.: 79-31-2
Synonyms:
Formula: C4H8O2
Exact Mass: 88.05240
Molecular Weight: 88.10510
PSA: 37.30000
LogP: 0.72700
Reference Price: $968/ton Inquiry Now
isobutyric acid 79-31-2 MSDS
Name: Isobutyric Acid 99+% Material Safety Data Sheet
Synonym: 2-Methylpropionic Acid; Isopropylfromic Acid; Dimethylacetic Acid
CAS: 79-31-2
Section 1 - Chemical Product   MSDS Name:Isobutyric Acid 99+% Material Safety Data Sheet
Synonym:2-Methylpropionic Acid; Isopropylfromic Acid; Dimethylacetic Acid

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
79-31-2 Isobutyric Acid >99 201-195-7
Hazard Symbols: XN C
Risk Phrases: 10 21/22 34

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Flammable. Harmful in contact with skin and if swallowed. Causes burns.Corrosive.Moisture sensitive.
Potential Health Effects
Eye:
Causes eye burns.
Skin:
Harmful if absorbed through the skin. Causes skin burns.
Ingestion:
Harmful if swallowed. May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns.
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. Vapors may cause dizziness or suffocation.
Chronic:
None

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 not breathing, give artificial respiration. If breathing is difficult, give oxygen. Do NOT use mouth-to-mouth resuscitation.
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.
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.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Do NOT use water directly on fire. 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.

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. Clean up spills immediately, observing precautions in the Protective Equipment section. Scoop up with a nonsparking tool, then place into a suitable container for disposal. 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. Wash hands before eating. Remove contaminated clothing and wash before reuse. Use only in a well-ventilated area. 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. 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. Keep container closed when not in use. Store in a tightly closed container. Flammables-area. Store protected from moisture.

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 ventilation to keep airborne concentrations low.
Exposure Limits CAS# 79-31-2: Personal Protective Equipment Eyes: 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 minimize contact with skin.
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: Liquid
Color: clear, colorless
Odor: Pungent odor of rancid butter.
pH: Not available.
Vapor Pressure: 1.0 mm Hg @ 20 C
Viscosity: Not available.
Boiling Point: 154 deg C
Freezing/Melting Point: -47 deg C
Autoignition Temperature: 500 deg C ( 932.00 deg F)
Flash Point: 55 deg C ( 131.00 deg F)
Explosion Limits, lower: 2.0
Explosion Limits, upper: 9.0
Decomposition Temperature: Not available.
Solubility in water: Insoluble in water.
Specific Gravity/Density: 0.949
Molecular Formula: C4H8O2
Molecular Weight: 88.0548

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
High temperatures, mechanical shock, incompatible materials, ignition sources, moisture, excess heat, strong oxidants, exposure to moist air or water.
Incompatibilities with Other Materials:
Strong oxidizing agents.
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# 79-31-2: NQ4375000 LD50/LC50:
CAS# 79-31-2: Oral, rat: LD50 = 280 uL/kg; Skin, rabbit: LD50 = 500 uL/kg.
Carcinogenicity:
Isobutyric Acid - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Other No information available.

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

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: ISOBUTYRIC ACID
Hazard Class: 3 (8)
UN Number: 2529
Packing Group: III
IMO
Shipping Name: ISOBUTYRIC ACID
Hazard Class: 3.3 (8)
UN Number: 2529
Packing Group: III
RID/ADR
Shipping Name: ISOBUTYRIC ACID
Hazard Class: 3
UN Number: 2529
Packing group: III
USA RQ: CAS# 79-31-2: 5000 lb final RQ (Listed under Butyric acid); 2270 kg fina

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN C
Risk Phrases:
R 10 Flammable.
R 21/22 Harmful in contact with skin and if
swallowed.
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 33 Take precautionary measures against static
discharges.
S 50A Do not mix with acids.
WGK (Water Danger/Protection)
CAS# 79-31-2: 1
Canada
CAS# 79-31-2 is listed on Canada's DSL List.
CAS# 79-31-2 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 79-31-2 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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