TRANS-1,3-PENTADIENE Chemical Properties

Melting point:

−87 °C(lit.)

Boiling point:

42 °C(lit.)

Density 

0.683 g/mL at 25 °C(lit.)

vapor density 

2.4 (vs air)

vapor pressure 

6.56 psi ( 20 °C)

refractive index 

n20/D 1.433(lit.)

Flash point:

<−30 °F

storage temp. 

Refrigerator

Dielectric constant

2.3（25℃）

Stability:

Stable. Incompatible with strong oxidizing agents. Very flammable - note low flash point and low boiling point.

CAS DataBase Reference

504-60-9(CAS DataBase Reference)

EPA Substance Registry System

1,3-Pentadiene (504-60-9)

Safety Information

Hazard Codes 

F,Xn

Risk Statements 

11-65

Safety Statements 

16-23-26-36-62-24/25

RIDADR 

UN 3295 3/PG 2

WGK Germany 

3

RTECS 

RZ2465000

HazardClass 

3.1

PackingGroup 

I

Hazardous Substances Data

504-60-9(Hazardous Substances Data)

MSDS

• Language:English Provider:SigmaAldrich

TRANS-1,3-PENTADIENE Usage And Synthesis

Chemical Properties

colourless liquid

Definition

ChEBI: (E)-1,3-pentadiene is an alkadiene consisting of pentane with the two double bonds located at positions 1 and 3.

General Description

A clear colorless liquid with an acrid odor. Flash point of -20°F. Boiling point 5°F. A dangerous fire risk. Vapors are irritating to the eyes and respiratory system. Subject to polymerization if heated or contaminated. If the polymerization takes place inside a container, the container may violently rupture. Insoluble in water. Used to make intermediates and polymers.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

TRANS-1,3-PENTADIENE may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions. May undergo autoxidation upon exposure to the air to form explosive peroxides. Violent explosions at low temperatures in ammonia synthesis units have been traced to the addition products of dienes and nitrogen dioxide [Bretherick, 5th Ed., 1995].

Health Hazard

Vapors may cause dizziness or suffocation; contact may irritate skin and eyes.

TRANS-1,3-PENTADIENE(504-60-9)Related Product Information

• 3-Hydroxy-1,4-pentadiene
• 3-METHYL-1,4-PENTADIENE 99+%
• 1,3,5-Triphenyl-1,2,4,5-tetraaza-1,3-pentadiene
• cis-1,3-Pentadiene (stabilized with TBC)
• 4-METHYL-1,3-PENTADIENE 98%
• 1,5-Bis-(2-furanyl)-1,4-pentadiene-3-one
• 2,4-Dimethyl-2,4-pentadiene,2,4-DIMETHYL-1,3-PENTADIENE 98%
• 1,2-PENTADIENE
• 2-methyl-trans-1,3-pentadien
• trans-1,3-Pentadiene (stabilized with TBC),TRANS-1,3-PENTADIENE,TRANS-1,3-PENTADIENE, STAB.,trans-1,3-Pentadiene (stabilized with TBC)
• 3-METHYL-1,3-PENTADIENE (CIS- AND TRANS- MIXTURE) 99+%,3-Methyl-1,3-pentadiene (cis- and trans- mixture)
• 2-METHYL-1,3-PENTADIENE (CIS- AND TRANS- MIXTURE)
• Naphtha (petroleum), light steam-cracked arom., piperylene conc., polymd.
• 1,3-pentadiene/ 2-methyl-2-butene copolymer
• 1,5-Bis-(2-thienyl)-1,4-pentadiene-3-one
• 1-BROMO-1,2-DIFLUORO-1,4-PENTADIENE, 95% MIN.
• 1-CHLORO-1,2-DIFLUORO-1,4-PENTADIENE, 97% MIN.
• PIPERYLENE/BUTENE/PENTENE/PENTADIENE COPOLYMER