Description
Isopropyl isobutyrate has an intense, fruity, ether-like odor. May
be prepared by boiling isobutyryl chloride and isopropyl alcohol.
Chemical Properties
Isopropyl isobutyrate has an intense, fruity, ether-like odor
Occurrence
Reported found in laurel.
Uses
Isopropyl Isobutyrate is a useful reactant in organic synthesis.
It is also used occasionally in flavor compositions as a modifier for higher and lower
alkylbutyrates in Pineapple, Apricot, Pear and
in certain types of Citrus complex flavors. It is
the lightest and freshest tasting of all four
Propylbutyrates.
The concentration of this ester in finished
products will vary from 10 to 100 ppm.
Definition
ChEBI: Isopropyl 2-methylpropanoate is a carboxylic ester.
Preparation
By boiling isobutyl chloride and isopropyl alcohol.
Aroma threshold values
Detection: 26 to 60 ppb
General Description
A colorless liquid. Flash point near 30°F. Boiling point near 280°F. Less dense than water. Vapors heavier than air. Used as a solvent and to make flavorings.
Air & Water Reactions
Highly flammable. Soluble in water.
Reactivity Profile
ISOBUTYRIC ACID ISOPROPYL ESTER 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.
Health Hazard
Inhalation or contact with material may irritate or burn skin and eyes. Fire may produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control may cause pollution.
Fire Hazard
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. 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. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
