Iso butyric Acid MSDS

Iso butyric Acid MSDS


Section 1: Chemical Product and Company Identification

Product Name: Iso butyric Acid

Catalog Codes: SLB2290

CAS#: 79-31-2

RTECS: NQ4375000

TSCA: TSCA 8(b) inventory: Iso butyric Acid

CI#: Not available.

Synonym: 2-Methylpropionic acid

Chemical Name: Isobutyric Acid

Chemical Formula: C4-H8-O2


Section 2: Composition and Information on Ingredients


Name CAS # % by Weight

Iso butyric Acid 79-31-2 100

Toxicological Data on Ingredients: Iso butyric Acid: ORAL (LD50): Acute: 266 mg/kg [Rat]. DERMAL (LD50): Acute: 475 mg/

kg [Rabbit].


Section 3: Hazards Identification

Potential Acute Health Effects:

Very hazardous in case of skin contact (irritant), of eye contact (irritant), of ingestion, of inhalation. Hazardous in case of skin

contact (corrosive, permeator), of eye contact (corrosive). Liquid or spray mist may produce tissue damage particularly on

mucous membranes of eyes, mouth and respiratory tract. Skin contact may produce burns. Inhalation of the spray mist may

produce severe irritation of respiratory tract, characterized by coughing, choking, or shortness of breath. Inflammation of the

eye is characterized by redness, watering, and itching. Skin inflammation is characterized by itching, scaling, reddening, or,

occasionally, blistering.

Potential Chronic Health Effects:


DEVELOPMENTAL TOXICITY: Not available. Repeated or prolonged contact with spray mist may produce chronic eye

irritation and severe skin irritation. Repeated or prolonged exposure to spray mist may produce respiratory tract irritation

leading to frequent attacks of bronchial infection.


Section 4: First Aid Measures

Eye Contact:

Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at least 15

minutes. Cold water may be used. WARM water MUST be used. Get medical attention immediately.

Skin Contact:

In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing

and shoes. Cover the irritated skin with an emollient. Wash clothing before reuse. Thoroughly clean shoes before reuse. Get

medical attention immediately.

Serious Skin Contact:

Wash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek immediate medical



If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical

attention immediately.

Serious Inhalation:

Evacuate the victim to a safe area as soon as possible. Loosen tight clothing such as a collar, tie, belt or waistband. If

breathing is difficult, administer oxygen. If the victim is not breathing, perform mouth-to-mouth resuscitation. WARNING: It may

be hazardous to the person providing aid to give mouth-to-mouth resuscitation when the inhaled material is toxic, infectious or

corrosive. Seek immediate medical attention.


Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious

person. If large quantities of this material are swallowed, call a physician immediately. Loosen tight clothing such as a collar,

tie, belt or waistband.

Serious Ingestion: Not available.


Section 5: Fire and Explosion Data

Flammability of the Product: Flammable.

Auto-Ignition Temperature: 501.67C (935F)

Flash Points: CLOSED CUP: 55C (131F). OPEN CUP: 76.667C (170F).

Flammable Limits: LOWER: 2% UPPER: 9%

Products of Combustion: These products are carbon oxides (CO, CO2).

Fire Hazards in Presence of Various Substances:

Flammable in presence of open flames and sparks, of heat. Non-flammable in presence of shocks.

Explosion Hazards in Presence of Various Substances:

Risks of explosion of the product in presence of mechanical impact: Not available. Risks of explosion of the product in

presence of static discharge: Not available.

Fire Fighting Media and Instructions:

Flammable liquid, soluble or dispersed in water. SMALL FIRE: Use DRY chemical powder. LARGE FIRE: Use alcohol foam,

water spray or fog. Cool containing vessels with water jet in order to prevent pressure build-up, autoignition or explosion.

Special Remarks on Fire Hazards: Not available.

Special Remarks on Explosion Hazards: Vapor forms explosive mixtures with air.


Section 6: Accidental Release Measures

Small Spill: Absorb with an inert material and put the spilled material in an appropriate waste disposal.

Large Spill:

Flammable liquid. Corrosive liquid. Keep away from heat. Keep away from sources of ignition. Stop leak if without risk. Absorb

with DRY earth, sand or other non-combustible material. Do not get water inside container. Do not touch spilled material.

Use water spray curtain to divert vapor drift. Prevent entry into sewers, basements or confined areas; dike if needed. Call for

assistance on disposal.


Section 7: Handling and Storage


Keep container dry. Keep away from heat. Keep away from sources of ignition. Ground all equipment containing material.

Do not ingest. Do not breathe gas/fumes/ vapor/spray. Never add water to this product. In case of insufficient ventilation,

wear suitable respiratory equipment. If ingested, seek medical advice immediately and show the container or the label. Avoid

contact with skin and eyes. Keep away from incompatibles such as oxidizing agents.


Store in a segregated and approved area. Keep container in a cool, well-ventilated area. Keep container tightly closed and

sealed until ready for use. Avoid all possible sources of ignition (spark or flame).


Section 8: Exposure Controls/Personal Protection

Engineering Controls:

Provide exhaust ventilation or other engineering controls to keep the airborne concentrations of vapors below their respective

threshold limit value. Ensure that eyewash stations and safety showers are proximal to the work-station location.

Personal Protection:

Face shield. Full suit. Vapor respirator. Be sure to use an approved/certified respirator or equivalent. Gloves. Boots.

Personal Protection in Case of a Large Spill:

Splash goggles. Full suit. Vapor respirator. Boots. Gloves. A self contained breathing apparatus should be used to avoid

inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist BEFORE handling this


Exposure Limits: Not available.


Section 9: Physical and Chemical Properties

Physical state and appearance: Liquid.

Odor: Pungent, like rancid butter

Taste: Sharp, butter-fat-like, cheesy

Molecular Weight: 88.1g/mole

Color: Clear Colorless.

pH (1% soln/water): Not available.

Boiling Point: 154C (309.2F)

Melting Point: -47C (-52.6F)

Critical Temperature: 336.11C (637F)

Specific Gravity: 0.95 (Water = 1)

Vapor Pressure: Not available.

Vapor Density: 3.04 (Air = 1)

Volatility: Not available.

Odor Threshold: 8.1 ppm

Water/Oil Dist. Coeff.: The product is more soluble in oil; log(oil/water) = 0.5

Ionicity (in Water): Not available.

Dispersion Properties: See solubility in water, diethyl ether.


Soluble in diethyl ether. Very slightly soluble in cold water, hot water. Miscible with alcohol and chloroform.


Section 10: Stability and Reactivity Data

Stability: The product is stable.

Instability Temperature: Not available.

Conditions of Instability: High temperatures, ignition sources (flames, sparks), incompatible materials

Incompatibility with various substances: Reactive with oxidizing agents.

Corrosivity: Not available.

Special Remarks on Reactivity: Not available.

Special Remarks on Corrosivity: It is corrosive to metals.

Polymerization: Yes.


Section 11: Toxicological Information

Routes of Entry: Absorbed through skin. Dermal contact. Eye contact. Inhalation. Ingestion.

Toxicity to Animals:

Acute oral toxicity (LD50): 266 mg/kg [Rat]. Acute dermal toxicity (LD50): 475 mg/kg [Rabbit].

Chronic Effects on Humans: Not available.

Other Toxic Effects on Humans:

Very hazardous in case of skin contact (irritant), of ingestion, . Hazardous in case of skin contact (corrosive, permeator), of eye

contact (corrosive), of inhalation (lung corrosive).

Special Remarks on Toxicity to Animals: Not available.

Special Remarks on Chronic Effects on Humans: Not available.

Special Remarks on other Toxic Effects on Humans:

Acute Potential Health Effects: Skin: Corrosive. Causes severe skin irritation and skin burns. May be harmful if absorbed

through skin. Eyes: Corrosive. Causes severe eye irritation and burns. Inhalation: Inhalation of vapors causes irritation and

chemical burns to the respiratory tract and may cause dizziness or suffocation. Inhalation may be fatal as a result of spasm,

inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema. Ingestion: Harmful of swallowed.

May cause severe digestive tract irritation with possible burns. May cause permanent damage to the digestive tract.


Section 12: Ecological Information

Ecotoxicity: Not available.

BOD5 and COD: Not available.

Products of Biodegradation:

Possibly hazardous short term degradation products are not likely. However, long term degradation products may arise.

Toxicity of the Products of Biodegradation: The products of degradation are less toxic than the product itself.

Special Remarks on the Products of Biodegradation: Not available.


Section 13: Disposal Considerations

Waste Disposal:

Waste must be disposed of in accordance with federal, state and local environmental control regulations.


Section 14: Transport Information

DOT Classification: CLASS 3: Flammable liquid.

Identification: : Iso-Butyric Acid UNNA: 2529 PG: III

Special Provisions for Transport: Not available.


Section 15: Other Regulatory Information

Federal and State Regulations:

Connecticut hazardous material survey.: Isobutyric Acid Illinois chemical safety act: Isobutyric Acid New York release reporting

list: Isobutyric Acid Pennsylvania RTK: Isobutyric Acid Massachusetts RTK: Isobutyric Acid Massachusetts spill list: Isobutyric

Acid New Jersey: Isobutyric Acid New Jersey spill list: Isobutyric Acid Louisiana spill reporting: Isobutyric Acid TSCA 8(b)

inventory: Isobutyric Acid TSCA 4(a) proposed test rules: Isobutyric Acid CERCLA: Hazardous substances.: Isobutyric Acid:

5000 lbs. (2268 kg)

Other Regulations:

OSHA: Hazardous by definition of Hazard Communication Standard (29 CFR 1910.1200). EINECS: This product is on the

European Inventory of Existing Commercial Chemical Substances.

Other Classifications:

WHMIS (Canada):

CLASS B-3: Combustible liquid with a flash point between 37.8C (100F) and 93.3C (200F). CLASS D-1B: Material causing

immediate and serious toxic effects (TOXIC). CLASS E: Corrosive liquid.


R10- Flammable. R21/22- Harmful in contact with skin and if swallowed. R34- Causes burns. S1/2- Keep locked up and out

of the reach of children. S9- Keep container in a well-ventilated place. S16- Keep away from sources of ignition - No smoking.

S26- In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S33- Take precautionary

measures against static discharges. S36/37/39- Wear suitable protective clothing, gloves and eye/face protection. S45- In

case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). S46- If swallowed,

seek medical advice immediately and show this container or label. S50- Do not mix with acids

HMIS (U.S.A.):

Health Hazard: 3

Fire Hazard: 2

Reactivity: 0

Personal Protection:

National Fire Protection Association (U.S.A.):

Health: 3

Flammability: 2

Reactivity: 0

Specific hazard:

Protective Equipment:

Gloves. Full suit. Vapor respirator. Be sure to use an approved/certified respirator or equivalent. Wear appropriate respirator

when ventilation is inadequate. Face shield.


Section 16: Other Information

References: Not available.

Other Special Considerations: Not available.

Created: 10/09/2005 04:28 PM

Last Updated: 11/06/2008 12:00 PM