General Description
A clear colorless liquid with a pineapple-like odor. Flash point 78°F. Less dense than water and insoluble in water. Vapors heavier than air.
Reactivity Profile
ETHYL BUTYRATE(105-54-4) is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. May attack some forms of plastics [USCG, 1999].
Air & Water Reactions
Highly flammable. Insoluble in water.
Hazard
Irritant to eyes and mucous membranes,
narcotic in high concentration. Flammable, dangerous fire risk.
Health Hazard
Inhalation or ingestion causes headache, dizziness, nausea, vomiting, and narcosis. Contact with liquid irritates eyes.
Potential Exposure
Ethyl butyrate, and aldehyde, is used
in flavorings, extracts, perfumery, and as a solvent.
Fire Hazard
Behavior in Fire: Vapor is heavier than air and may travel to a source of ignition and flash back. Containers may explode in fire.
First aid
If this chemical gets into the eyes, remove any
contact lenses at once and irrigate immediately for at least
15 minutes, occasionally lifting upper and lower lids. Seek
medical attention immediately. If this chemical contacts the
skin, remove contaminated clothing and wash immediately
with soap and water. Seek medical attention immediately.
If this chemical has been inhaled, remove from exposure,
begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if
heart action has stopped. Transfer promptly to a medical
facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce
vomiting. Do not make an unconscious person vomit.
Shipping
UN1180; UN1178 Ethyl butyrate, Hazard Class: 3;
Labels: 3-Flammable liquid
Incompatibilities
Vapor explosive mixture with air. Ethers
can act as bases. They form salts with strong acids and
addition complexes with Lewis acids. The complex
between diethyl ether and boron trifluoride is an example.
Ethers may react violently with strong oxidizing agents. In
other reactions, which typically involve the breaking of the
carbon-oxygen bond, ethers are relatively inert.
Incompatible with alkaline materials, strong acids, oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause
fires or explosions. Keep away from strong bases and heat
Chemical Properties
colourless liquid with a fruity odour
Chemical Properties
Ethyl butyrate has a fruity odor with pineapple undertone and sweet, analogous taste.
Chemical Properties
Ethyl butyrate is a colorless liquid. Pineapple
odor. The Odor Threshold is 0.015 ppm.
Chemical Properties
Ethyl Butyrate occurs in fruits
and alcoholic beverages, but also in other foods such as cheese. It has a fruity
odor, reminiscent of pineapples. Large amounts are used in perfume and in flavor
compositions.
Waste Disposal
Dissolve or mix the material
with a combustible solvent and burn in a chemical incinerator
equipped with an afterburner and scrubber. All federal, state,
and local environmental regulations must be observed
Occurrence
Identified by gas chromatography in olive oil and other vegetable oils. Reported found in apple, banana, citrus
peel oils and juices, cranberry, blueberry, black currants, guava, grapes, papaya, strawberry, onion, leek, cheeses, chicken, beef, beer,
cognac, rum, whiskies, cider, sherry, grape wines, coffee, honey, soybeans, olives, passion fruit, plums, mushroom, mango, fruit
brandies, kiwifruit, mussels and pawpaw.
Definition
ChEBI: Ethyl butyrate is a butyrate ester resulting from the formal condensation of the hydroxy group of ethanol with the carboxy group of butyric acid. It has a role as a plant metabolite. It is functionally related to an ethanol.
Preparation
By esterification of n-butyric acid with ethyl alcohol in the presence of Twichell’s reagent or MgCI2; also by heating
n-butyl alcohol and ethanol over CuO + UO3 catalyst at 270°C
Production Methods
Ethyl Butyrate can be synthesized by reacting ethanol and butyric acid. This is a condensation reaction, meaning water is produced in the reaction as a byproduct.
Aroma threshold values
Detection: 0.1 to 18 ppb
Taste threshold values
Taste characteristics at 20 ppm: fruity, sweet, tutti-frutti, apple, fresh and lifting, ethereal.
Flammability and Explosibility
Flammable
Chemical Reactivity
Reactivity with Water: No reaction; Reactivity with Common Materials: May attack some forms of plastics; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
Carcinogenicity
Not listed by ACGIH, California
Proposition 65, IARC, NTP, or OSHA.
storage
Color Code—Red: Flammability Hazard: Store ina flammable liquid storage area or approved cabinet awayfrom ignition sources and corrosive and reactive materials.Prior to working with this chemical you should be trainedon its proper handling and storage. Ethyl butyrate is incompatible with oxidizers (such as perchlorates, peroxides, permanganates, chlorates, and nitrates), strong acids (such ashydrochloric, sulfuric, and nitric), bases, and heat. Store intightly closed containers in a cool, well-ventilated area.Sources of ignition, such as smoking and open flames, areprohibited where ethyl butyrate is handled, used, or stored.Metal containers involving the transfer of 5 gallons or moreof ethyl butyrate should be grounded and bonded. Drumsmust be equipped with self-closing valves, pressure vacuumbungs, and flame arresters. Use only nonsparking tools andequipment, especially when opening and closing containersof ethyl butyrate.
Purification Methods
Dry the ester with anhydrous CuSO4 and distil it under dry nitrogen. [Beilstein 2 IV 787.]
