Product Identification

Product Name

Acrylic acid isobutyl ester

Synonyms

IMO Pollution Category
2-Propenoic acid, 2-methylpropyl ester
Acrylic acid, isobutyl ester
Isobutyl propenoate

CAS

106-63-8

Formula

C7H12O2

Molecular Weight

128.19

EINECS

203-417-8

RTECS

AT2100000

RTECS Class

Primary Irritant

Beilstein/Gmelin

1749388

Beilstein Reference

4-02-00-01465

EC Index Number

607-115-00-0

EC Class

Flammable; Harmful; Irritant; Sensitising

Physical and Chemical Properties

Appearance

A clear colorless liquid with an acrid odor.

Solubility in water

Slightly soluble

Melting Point

-61.1

Boiling Point

132

Vapor Pressure

9 (25 C)

Density

0.889 g/cm3 (20 C)

Partition Coefficient

2.22

Heat Of Vaporization

37.0 kJ/mol

Heat Of Combustion

-3838 kJ/mol

Usage

Chemical intermediate for polymers, comonomer in acrylic surface coatings.

Vapor Density

4.42

Odor threshold

2 ppb

Refractive Index

1.405 (20 C)

First Aid Measures

Ingestion

DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician.

Inhalation

IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.

Skin

IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

Eyes

First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Handling and Storage

Storage

The effectiveness of phenolic inhibitors is dependent on the presence of oxygen and the monomers must be stored under air rather than an inert atmosphere. Temperature must be kept low to minimize formation of peroxides and other products. The acrylic esters may be stored in mild or stainless steel, or aluminum. Acrylic acid and derivatives

Handling

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Ingestion

Prolonged inhalation may cause nausea. Irritation of the gi tract may occur.

Inhalation

Vapors may cause dizziness or suffocation. May cause toxic effects. May irritate or burn.

Skin

Dermal irritation and sensitization may occur.

Eyes

Highly irritating to mucous membranes and eyes. Strong lacrimator. May cause corneal burns.

Hazards

Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

EC Risk Phrase

R 10 20/21 38 43

EC Safety Phrase

S 9 24 37

UN (DOT)

2527

Exposure Controls/Personal Protection

Personal Protection

Suitable protective clothing and self-contained resp protective apparatus should be available for use of those who may have to rescue persons overcome by fumes. Protection required for safe handling of acrylic acid and esters commonly includes use of impervious gloves, shoe soles, and clothing; splash-proof goggles.

Respirators

Self-contained breathing apparatus, rubber gloves, chemical goggles.

Poison Class

4

Fire Fighting Measures

Flash Point

31

Autoignition

340

Fire Fighting

Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Solid streams of water may spread fire. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use foam, dry chemical, or carbon dioxide.

Upper exp. limit

8

Lower exp. limit

2

Fire Potential

HIGHLY FLAMMABLE.

Accidental Release Measures

Small spills/leaks

Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.

Stability and Reactivity

Stability

Polymerizes easily.

Incompatibilities

Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products Reacts with strong oxidants.

Decomposition

When heated to decomposition it emits acrid smoke and toxic fumes.

Combustion Products

Fire will produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

2527

Hazard Class

3

Packing Group

III