Ethyl isobutyrate

  • 2-Methylpropanoic acid, ethyl ester
  • Ethyl 2-methyl propanoate
Formula
(CH3)2CHCOOC2H5
Structure
Description
A colorless volatile liquid with a fruity, aromatic odor.
Uses
Used to make flavoring extracts and other chemicals.

Registry Numbers and Inventories.
CAS
97-62-1
EC (EINECS/ELINCS)
202-595-4
EC Class
highly flammable
R 11 36/37/38
S 16 26 36
RTECS
NQ4675000
RTECS class
Primary Irritant
UN (DOT)
2385
Merck
13,3847
Beilstein/Gmelin
773846
Beilstein Reference
4-02-00-00846
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
-88
Boiling point, °C
112
Vapor pressure, mmHg
26 (25 C)
Vapor density (air=1)
4
Density
0.8904 g/cm3 (0 C)
Solubility in water
Slightly soluble
Refractive index
1.3918
Heat of vaporization
39.80 kJ/mol
Heat of combustion
-3541 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate chemical protective gloves, boots and goggles. If contact with the material anticipated, wear appropriate chemical protective clothing.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.
Disposal code
1
Stability
No data.
Incompatibilities
Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products.

Fire.
Flash Point,°C
31
Autoignition, °C
463
Upper exp. limit, %
7.8
Lower exp. limit, %
1.3
Fire fighting
Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. Use foam, dry chemical, or carbon dioxide. Keep run-off water out of sewers and water sources.
Fire potential
HIGHLY FLAMMABLE.
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. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
3
 
Flammability
2
 
 
Reactivity
0
 

Health.
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Inhalation
Vapors may cause dizziness or suffocation. May cause irritation or burns.
   Skin
May cause irritation or burns.
   Eyes
See Skin.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. Wash skin with soap and water. Flush with running water for at least 20 minutes
   Eyes
Flush with running water for at least 20 minutes.

Transport.
UN number
2385
Response guide
Hazard class
3
Packing Group
II
 
HS Code
2915 60 19
 
Std. Transport #
4909347