Isoprene

Product name:

Isoprene

Molecular formula:

C5H8    CH2=C(CH3)CH=CH2

Formula Weight:

68.12

Synonyms:

2-Methyl-1, 3-butadiene

NIOSH/RTECS Number:

NT403700

Composition/ Information on Ingredients:

Ingredient:

Isoprene   

Weight%:

=98.0

Physical and Chemical Properties:

Boiling Point:   

34^oC (93F)

Specific Gravity:

0.68

Melting Point:   

-147.7^oC(-231F)        (H20=1)

Vapor Pressure(MM HG):

560

Evaporation Rate:

>25

Vapor Density (Air=1):

2.35            (Butyl Acetate=1)

Lower Exposition Limits (V%):

1.0%

Upper Exposition Limits (V%):

10.0%

Solubility:

Negligible (less than 0.1%)

%Volatile by Volume:

100

Appearance/ Odor:

Colorless or light color, volatile liquid with aromatic odor.

Stability and Reactivity:

Stability:

Unstable

Hazardous Polymerization:

May occur

Conditions to Avoid:

Heat, flame, other sources of ignition, insufficient inhibitor

Incompatibles: 

Strong oxidizing agents

Disposal Considerations:

Dispose in accordance with both national and local environmental regulations.

Transportation Information (for reference):

Proper Shipping Name:

Isoprene

Hazard Class:

Flammable Liquid (Class 3.1)

UN/NA:

UN1218

Labels:

Flammable Liquid

Reportable Quantity:

1000LBS

APPEARANCE

Colorless Liquid

PURITY

WT%

99.5 MIN

DIMER

WT%

0.3 MAX

PARAFFIN/ MONO OLEFIN

WT%

0.7 MAX

CYCLOPENTADIENE

WT PPM

5 MAX

SULFUR

WT PPM

5 MAX

TOTAL ACETYLENES

WT PPM

50 MAX

CARBONYLS

WT PPM

10 MAX

METAPENTADIENE

WT PPM

80 MAX

INHABITE:

WT PPM

60–120 Typical

APPEARANCE

Colorless Liquid

COLOUR (Pt-Co)               

100 MAX

PURITY

WT%     

98.5 MIN

WATER

WT%

0.030 MAX       

TBC**

Proper