Ethyl butyrate

  • Butanoic acid, ethyl ester
Formula
CH3CH2CH2COOC2H5
Structure
Description
Colorless liquid, pineapple odor, fruity odor with pineapple undernote.
Uses
In manufacture of artificial rum, the alcoholic solution constitutes pineapple oil.

Registry Numbers and Inventories.
CAS
105-54-4
EC (EINECS/ELINCS)
203-306-4
EC Class
flammable
R 11 36/37/38
S 16 26 36
RTECS
ET1660000
RTECS class
Primary Irritant
UN (DOT)
1180
Merck
13,3810
Beilstein/Gmelin
506331
Beilstein Reference
4-02-00-00787
Swiss Giftliste 1
G-1169
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H12O2
Formula mass
116.16
Melting point, °C
-92
Boiling point, °C
252
Vapor pressure, mmHg
13 (25 C)
Saturation Concentration
14900 ppm (1.49%) at 20 C (calculated)
Odor Threshold Odor threshold 0.015 ppm
Critical temperature
296
Critical pressure
3.1
Density
0.89957 g/cm3 (0 C)
Solubility in water
Soluble
Viscosity
0.56 cp (40 C)
Surface tension
24.5 g/s2
Refractive index
1.39141 (22 C)
Partition coefficient, pKow
1.73
Heat of vaporization
43.18 kJ/mol
Heat of combustion
-3564 kJ/mol

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.
Handling
Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse. 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
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.
Disposal code
1
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Strong oxidizing agents, acids, bases, heat.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
26
Autoignition, °C
460
Upper exp. limit, %
7.7
Lower exp. limit, %
1.3
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. Will burn if involved in a fire. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT use straight streams of water. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire potential
Flammable, dangerous fire risk.
Hazards
Vapor is heavier than air and may travel to a source of ignition and flash back. Containers may explode in fire.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
1
 
Flammability
3
 
 
Reactivity
0
 

Health.
Poison_Class
-
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Ingestion
May cause irritation of the digestive tract.
   Inhalation
Vapors may cause dizziness or suffocation. Vapor or mist is irritating to the mucous membranes and upper respiratory tract.
   Skin
Causes moderate skin irritation. May be absorbed through the skin.
   Eyes
Vapors may cause eye irritation.

First aid
 
   Ingestion
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
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
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
1180
Response guide
Hazard class
3
Packing Group
III
 
USCG CHRIS Code
EBR
 
HS Code
2915 60 19
 
Std. Transport #
4909132
 
IMO Pollution Category
C
IMO Hazard code
P