ISOPROPYL BUTYRATE Property

Melting point:

-95.2°C (estimate)

Boiling point:

130-131 °C(lit.)

Density 

0.859 g/mL at 25 °C(lit.)

vapor pressure 

6 mm Hg ( 20 °C)

refractive index 

n20/D 1.393(lit.)

FEMA 

2935 | ISOPROPYL BUTYRATE

Flash point:

86 °F

storage temp. 

Store below +30°C.

form 

clear liquid

color 

Colorless to Almost colorless

Odor

at 100.00 %. sweet fruity estery ether pineapple ripe

Odor Type

fruity

Odor Threshold

0.0062ppm

Water Solubility 

1.56g/L(temperature not stated)

JECFA Number

307

LogP

2.12

CAS DataBase Reference

638-11-9(CAS DataBase Reference)

EPA Substance Registry System

Butanoic acid, 1-methylethyl ester (638-11-9)

Safety

Hazard Codes 

Xi

Risk Statements 

10-36/37/38

Safety Statements 

16-26-36

RIDADR 

UN 2405 3/PG 3

WGK Germany 

3

HazardClass 

3.2

PackingGroup 

III

HS Code 

29156000

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H226Flammable liquid and vapour

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P242Use only non-sparking tools.

P243Take precautionary measures against static discharge.

ISOPROPYL BUTYRATE Chemical Properties,Usage,Production

Description

Isopropyl butyrate has a pleasant odor reminiscent of butyric acid. May be synthesized from butyric acid and propylene in presence of concentrated H2S04 at 125°C in sealed tube; also from butyric acid and isopropyl alcohol in the presence of HCL or p-toluenesulfonic acid.

Chemical Properties

Colorless liquid.

Chemical Properties

Isopropyl butyrate has a pleasant odor reminiscent of butyric acid.

Occurrence

Reported found in strawberry, cranberry, kumquat peel oil, apricot, papaya, blue cheeses, sparkling wine, passion fruit and spineless monkey orange

Uses

Isopropyl butyrate was used as intravaginal taggant in the study of "breath test" for vaginal gel use.

Uses

Solvent for cellulose ethers, flavoring.

Definition

ChEBI: Isopropyl butyrate is a fatty acid ester and an isopropyl ester.

Preparation

From butyric acid and propylene in presence of concentrated H2SO4 at 125°C in sealed tube; also from butyric acid and isopropyl alcohol in the presence of HCl or p-toluenesulfonic acid

Aroma threshold values

Detection: 43 to 86 ppb

Taste threshold values

Taste characteristics at 30 ppm: sweet, fruity, estry, green and ripe

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

ISOPROPYL BUTYRATE 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

May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water 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.

Biochem/physiol Actions

Taste at 20 ppm