Ethyl propionate Chemical Properties

Melting point:

-73 °C (lit.)

Boiling point:

99 °C (lit.)

Density 

0.888 g/mL at 25 °C (lit.)

vapor density 

3.52 (vs air)

vapor pressure 

40 mm Hg ( 27.2 °C)

refractive index 

n20/D 1.384(lit.)

FEMA 

2456 | ETHYL PROPIONATE

Flash point:

54 °F

storage temp. 

Flammables area

solubility 

2% soluble in water. miscible with alcohol, perfume and flavor oils.

form 

Liquid

color 

Clear colorless to pale yellow

Odor

at 10.00 % in dipropylene glycol. sweet fruity rum juicy fruit grape pineapple

PH

7 (H2O, 20℃)

explosive limit

1.8-11%(V)

Odor Type

fruity

Odor Threshold

0.007ppm

Water Solubility 

25 g/L (15 ºC)

Merck 

14,3847

JECFA Number

28

BRN 

506287

Dielectric constant

5.7（20℃）

InChIKey

FKRCODPIKNYEAC-UHFFFAOYSA-N

LogP

1.31 at 22.1℃

CAS DataBase Reference

105-37-3(CAS DataBase Reference)

NIST Chemistry Reference

Propanoic acid, ethyl ester(105-37-3)

EPA Substance Registry System

Ethyl propionate (105-37-3)

Safety Information

Hazard Codes 

F

Risk Statements 

11

Safety Statements 

16-23-24-29-33

RIDADR 

UN 1195 3/PG 2

WGK Germany 

1

RTECS 

UF3675000

Autoignition Temperature

887 °F

TSCA 

Yes

HazardClass 

3

PackingGroup 

II

HS Code 

29159000

Hazardous Substances Data

105-37-3(Hazardous Substances Data)

MSDS

• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Ethyl propionate Usage And Synthesis

Description

Ethyl propionate is a carboxylic acid ester compound containing ester group functionalities. Due to its distinctive fruity flavour, Ethyl propionate is widely used as a food flavouring and as a fragrance in cosmetics. However, it is flammable and hazardous to humans and may damage the liver and kidneys, and high exposures can cause drowsiness and sleepiness. High exposures may affect the heart and it has been added to the list of special health hazards.

Chemical Properties

Ethyl Propionate is a clear colorless to pale yellow liquid that is found in many fruits and alcoholic beverages. It has a fruity odor reminiscent of rum and is used in flavor compositions for creating both fruity and rum notes.

Occurrence

Reported found in several types of wine, in white grape var. Sauvignon, cocoa, apple juice, orange juice, grapefruit juice, guava, melon, peach, pineapple, strawberry, tomato, various cheeses, beer, cognac, rum, whiskey, bourbon, malt whiskey, scotch, cider, brandy, kiwi fruit and mussels.

Uses

Ethyl Propionate is a flavoring agent that is a transparent liquid, colorless, with an odor resembling rum. it is miscible in alcohol and propylene glycol, soluble in fixed oils, mineral oil, and alcohol, and sparingly soluble in water. it is obtained by chemical synthesis.

Production Methods

Ethyl propionate is produced by the esterification of ethyl alcohol with propionic acid or propionic anhydride.

Definition

ChEBI: Ethyl propionate is a propanoate ester of ethanol. It has a role as a metabolite.

Aroma threshold values

Detection: 9 to 45 ppb

Taste threshold values

Taste characteristics at 25 ppm: sharp, fermented, rummy and fruity.

General Description

Ethyl propionate[105-37-3] appears as a clear colorless liquid with a pineapple-like odor. Flash point 54 °F. Less dense than water and insoluble in water. Vapors are heavier than air.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

Ethyl propionate 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. Can react with oxidizing agents, bases, and acids. Polymerization: Will not polymerize [USCG, 1999].

Hazard

Flammable, dangerous fire risk.

Health Hazard

Exposure can cause irritation of eyes, nose and throat. May cause shortness of breath or coughing. High concentrations have a narcotic effect. May cause abdominal pain and vomiting if swallowed.

Safety Profile

Moderately toxic by ingestion and intraperitoneal routes. A skin and eye irritant. A flammable liquid. A very dangerous fire and explosion hazard when exposed to heat or flame; can react vigorously with oxidizing materials. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes. See also ETHERS.

Purification Methods

Treat the ester with anhydrous CuSO4 and distil it under nitrogen. [Beilstein 2 IV 205.]

Toxicity evaluation

Ethyl propionate oral toxicity Sprague-Dawley rat LD50 (male) = 10.8 (8.9-13.1) mL/kg; LD50 (female) = 9.8 (7.2-13.6) mL/kg; LD50 = 8.0 mL/kg. Dermal toxicity: New Zealand White rabbit LD50 > mL/kg^[1].

References

[1] R. MYERS  T. T. Acute Toxicologic Evaluation of Ethyl Propionate[J]. International Journal of Toxicology, 1992, 1 1: 174-174. DOI:10.1177/109158189200100319.

Ethyl propionate(105-37-3)Related Product Information

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