Ethyl propionate

  • Propionic acid, ethyl ester
Formula
CH3CH2COOC2H5
Structure
Description
Colorless liquid with a pineapple or rum-like odor.
Uses
Solvent for cellulose ethers and esters, various natural and synthetic resins, flavoring agent, fruit syrups, cutting agent for pyroxylin.

Registry Numbers and Inventories.
CAS
105-37-3
EC (EINECS/ELINCS)
203-291-4
EC Index Number
607-028-00-8
EC Class
Highly flammable
S 16 23 24 29 33
RTECS
UF3675000
RTECS class
Primary Irritant
UN (DOT)
1195
Merck
13,3878
Beilstein/Gmelin
506287
Beilstein Reference
4-02-00-00705
Swiss Giftliste 1
G-1194
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C5H10O2
Formula mass
102.13
Melting point, °C
-74
Boiling point, °C
210
Vapor pressure, mmHg
36 (25 C)
Vapor density (air=1)
3.52
Saturation Concentration
35500 ppm (3.55%) at 20 C; 49350 ppm (4.94%) at 25 C (calculated)
Evaporization number
2.3 (n-butyl acetate = 1)
Critical temperature
273
Critical pressure
33.18
Density
0.9139 g/cm3 (0 C)
Solubility in water
Soluble
Viscosity
0.49 cp (30 C)
Refractive index
1.38442 (15 C)
Partition coefficient, pKow
1.21
Heat of fusion
12.6 kJ/mol
Heat of vaporization
39.27 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.
B2
Handling
Wash thoroughly after handling. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Use only in a chemical fume hood. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Wash area with soap and water. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Use a spark-proof tool. Isolate area and deny entry. Provide ventilation.
Disposal code
1
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, acids, bases.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
12
Autoignition, °C
475
Upper exp. limit, %
11
Lower exp. limit, %
1.8
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use water spray to cool fire-exposed containers. Use foam, dry chemical, or carbon dioxide. Water may be ineffective.
Fire potential
A flammable liquid. A very dangerous fire and explosion hazard when exposed to heat or flame.
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.
Combustion products
Irritating vapors and toxic gases, such as carbon dioxide and carbon monoxide, may be formed when involved in fire.
Health
1
 
Flammability
3
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Ingestion
May cause irritation of the digestive tract.
   Inhalation
Causes respiratory tract irritation. Vapors may cause dizziness or suffocation.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1195
Response guide
Hazard class
3
Packing Group
II
 
USCG CHRIS Code
EPR
 
HS Code
2915 50 00
 
Std. Transport #
4909170
 
IMO Pollution Category
D